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Tobii Glasses User Guide

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1. Type GPF File Size 39 8 KB Date modified 2010 02 22 03 30 o Sf Q o o N D N o 3 Q 7 O m z O 51 User Manual 8 Select the Recordings and Snapshots only those taken with the glasses you wish to import by checking or unchecking the respective check boxes or by pressing the Check Uncheck All button located below the list to select or deselect all the recordings 9 Import Data Into Select if you wish to import the recordings into an Existing test or a New test Select the option Existing and use the drop down list to choose an existing test or select New test and enter a test name in the text box Step 8 amp 9 Tobii Glasses Import Select sessions and snapshots to import glasses data into existing test or a new test Sessions Snapshots Not Imported a E P 001 V 2011 10 19 10 23 50 Calibrated O hrs 0 min 26 sec P002 IV 2011 10 19 10 27 39 Calibrated 0 hrs 27 min 45 sec P 003 2011 10 19 10 30 30 Calibrated e i 0 hrs 9 min 48 sec UN He 2 0 LE T sn3 raw V sn 4 raw Y sn 5 raw Y hee Check Uncheck All 6 of 6 items selected Check Uncheck All 7 of 7 items selected Calibrated Import Data Into O Existing Shopping Research New test Participant Name Prefix Import 1 Settings being merged into existi rticipants in the selected test g merged i isting participa _ import port Cancel
2. The Participant Name Prefix feature allows you to add a prefix O Preset stance Average 70 150 aa to the Participant Name during import of recordings from the Tobii Glasses Sessions created on the Recording Assistant are normally converted into Recordings with a Participant Name that corresponds to the Session number on the Recording Assistant e g Session 01 becomes Recording Rec 01 Participant POO1 Custom distance 100 cm Video import 7 Repair corrupted video frames during import Each SD card used in the Recording Assistant will start the naming of Sessions in the same order Session 1 2 3 etc If multiple SD cards are used during a test there is a risk that the imported Sessions will be saved as multiple recordings with the same Participant Name in Tobii Studio If different recordings have the same Participant Name it will be impossible to filter the data based on participants or Independent Variables such as Age or Gender since there is no indication that these recordings are in fact different participants from different SD cards To avoid this potential issue always insert a unique prefix in the Participant Name Prefix text entry field every time you import an additional SD card in a Tobii Studio Test This feature will append the chosen prefix to the participant name effectively creating a unique name and avoiding recordings being merged into existing participants 12 When you are finished press
3. Connecting the glasses connector to the glasses port on the Recording Assistant A The glasses should always be connected before turning on the Recording Assistant Tobii Glasses Eye Tracker Charging the Recording Assistant battery Connect the charger s power cable to the back of to the charger and connect the other end to a power outlet The LED indicator should turn green Place the battery with the label facing the LED indicator of the charger The LED indicator will now show the charging status of your battery Blinking orange for the initial charge and solid orange for the remaining charging period the LED will turn green during the last phase of charging 95 100 charged indicating a fully charged battery Charging the Recording Assistant battery will take a maximum of 3 hours to reach a full charge using the supplied charger However depending on the residual charge left in the battery it may take less time Battery Battery charger Connection points L ED indicator Battery life Battery life is dependent on usage A fully charged battery can provide up to 70 minutes of use When Tobii Glasses are not recording the battery will consume only slightly less energy It is recommended that you keep the Recording Assistant connected to the AC adapter Keeping the AC adapter connected will also slowly charge the battery effectively extending the battery life during a study A low battery warning will be shown on the
4. O 59 User Manual 60 Events on the timeline Events in the Events list Filter by category Filter by text Category Time amp 3 GlassesRecordi 00 00 00 000 F Pickup product 00 00 25 624 Basket 00 00 27 435 F Pick up product 00 00 28 147 Basket 00 00 29 383 3 GlassesRecord_ 00 00 37 000 Text B Coding To code 1 Open the Replay tab and select the recording you want to begin to code 2 For each recording during playback use the shortcuts to log events such as the start and stop of an action or individual action counts Logged events can be seen as a bookmark on the timeline and also in the Events list on the left side under the Recordings list 3 Move through the recording by using the on screen playback controls the keyboard Space pause play Right Left Arrow Keys frame forward backward or clicking on the timeline 4 For amore convenient replay speed move the replay speed marker below the playback controls towards the tortoise on the left to slow down the replay speed D Edit or delete a logged event by right clicking on the event in the events list or by right clicking on the event bookmark in the timeline and select Edit Log Entry or Delete Log Entry C Exporting Event Data To export the event data 1 Click the Export button in the Replay tab and select Text Export to open the Text Export dialog box 2 Set the desired Output folder and select w
5. Tobii Technology Tobii Glasses Eye Tracker User Manual On Safety Read this manual carefully before connecting and using the eye tracker The Tobii Glasses Eye Tracker is designed only for indoor use Avoid any exposure to direct sunlight as this will affect eye tracking quality Do not open the eye tracker Non compliance will result in loss of Warranty There are no user serviceable components inside and the risk of electric shock is high due to the presence of Dangerous High Voltages Contact Tobii Support if your eye tracker is not working properly Declaration of Conformity This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to section 15 of the FCC Rules and EMC directive 2004 108 EG The product also conforms with directive 2006 95 EC for low voltage and environmental directive RoHS 2002 95 EC These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try
6. A calibration is used to correctly map the obtained eye tracking data to the scene video and has to be done for each individual participant and every specific eye tracker placement on a participant s head e g after moving the Glasses a recalibration is required During the calibration a Virtual Calibration Plane invisible is positioned at 1 meter 3 3 feet from the glasses A representation of a 9 point calibration grid that is used for calibration is displayed on the Recording Assistant during the calibration procedure To calibrate the Tobii Glasses for a participant 1 Find a flat surface For best results choose a neutral contrast single colored surface e g not very bright reflective or very dark 2 The participant should stand so the front of the glasses are exactly 1 meter or 3 3 feet from the flat surface for best results 3 Ask the participant to look straight ahead and hold his her head as still as possible the temple arms should be level so the glasses are in a right angle to the calibration surface 4 Select the session you wish to calibrate from the session menu check that you are using the same session you will create or have created the recording in for the participant in question Press the Calibrate button on the Recording Assistant The Track Status will be displayed Select Continue once the pupil is found correctly indicated by a green dot placed within the image of the glasses frame on the display of the
7. Enter a prefix that is unique in order to prevent these recordings from A h Step 10 10 To correct for parallax Click the Settings button to set the Average Distance between the glasses and the target being etti viewed This distance is used for calculating and mapping the ettings gaze data accurately on the scene camera video The selected Average Distance setting will be applied to all selected Sessions on import Read Gaze data will be calculated for the average distance between about the Parallax Correction Tool on page 38 an eae 11 The Participant Name Prefix feature allows you to add a prefix Preset distance Average 70 150cm v to the Participant Name during import of recordings from the Custom distance 100 em Tobii Glasses Sessions created on the Recording Assistant are normally converted into Recordings with a Participant Name that Video impor corresponds to the Session number on the Recording Assistant Wilco cd vidco kane dud dopo e g Session 01 becomes Recording Rec 01 Participant POO1 Each SD card used in the Recording Assistant will start the ok J cane naming of Sessions in the same order Session 1 2 3 etc m If multiple SD cards are used during a test there is a risk that the imported Sessions will be saved as multiple recordings with the same Participant Name in Tobii Studio If different recordings have the same Participant Name it will be impossible to filter the data based on particip
8. When using a card for the first time it is recommended that you format it in the Recording Assistant Read about Formatting the memory card on page 22 Other memory cards than those provided by Tobii should never be used as performance may be seriously affected To insert the memory card in the unit 1 First make sure the Recording Assistant is off Turn the unit off by holding the ON OFF button 2 Hold the Recording Assistant with the display facing you Make sure the unit is turned off 3 Insert the memory card in the memory card slot as illustrated below 4 Press it into the slot until it clicks into place To remove the memory card 1 First make sure the Recording Assistant is off Turn the unit off by holding the ON OFF button 2 Hold the Recording Assistant with the display facing you Make sure the unit is turned off 3 Press on the memory card so it clicks and becomes unfastened 4 The memory card can then be pulled out of the memory card slot A Do not insert or remove the memory card when the Recording Assistant is still powered on Doing so may result in corrupted or lost data and could cause damage to the memory card Changing the Memory card or formatting the Memory card keeps the numbering of the recording sessions continuously Memory and recording size Maximum supported memory card size 4GB Maximum file size per recording 2GB Average file size of a 30 min recording 900MB Maximum re
9. Recording Assistant The calibration will now start 5 Hold an IR Marker against the flat surface with the front facing the participant Ask the participant to keep looking at the IR Marker anywhere is OK although just 5 10 mm below the LED is the true reference point while keeping his her head still during the entire process 6 Ihe LED indicator on the IR Marker should stay solid green indicating that it is in Calibration Mode 7 On the Recording Assistant screen the IR Marker should now show up on the calibration grid as a blinking green red dot Green indicates the pupil is found red means lost eye tracking samples It is possible to complete a calibration session with 8 calibration points as opposed to having to collect data for all 9 calibration points The center point must always be included in the calibration Note that the eye tracking accuracy and precision performance may be reduced in the area where the calibration point data was not collected The general accuracy and precision performance for the other areas will remain the same A red dot may indicate a blink or bad trackability due to the glasses placement or general problems such as eye lashes mascara droopy eye lids etc When this occurs the glasses may require further adjustment or asking the participant to minimize the problem for example by taking off any mascara Ask the participant to open their eyes wider this allows the eye to be found more easily on
10. Snapshot JA Beacons can be enabled end disabled by clicking on the beeccn makes The sapshot can be cropped by ping the comers of the rectargie IR Beacons wil be disabled f located outside the crop Move a beacon by dragging it to the desired location Right click to add or delete a beacon ok py Cancel Opening the Snapshot Tool Glasses Tobii Studio 0 10 337 2010 03 File View Tools Forsigh Hep Check adjustthe IR Markers on imported snapshots Click on the blue window icon to the right of the name of the imported snapshot in the Media list under the Visualizations tab in Tobii Studio to see the automatically mapped and or manually added IR Markers onapshots taken with Glasses cannot be changed If the mapping is not complete or correct you can import the snapshot as an image from the Memory card When an image is imported as a Snapshot and IR Markers are manually added you will be able to further adjust their position change the cropping of the image or disable IR Markers for excluding them from analysis by clicking on them they will turn red when disabled Design and Record Replay o en Q Q N N D N o 3 Q 70 S O 63 UserManual Snapshot IR Marker Coverage To view the total IR Marker coverage whenever at least 4 IR Markers were detected from all imported snapshots of a selected recording open the Glasses Tools see screenshot below To see individual IR Marker coverage p
11. confirm with another pilot recording if uncovered issues are actually solved Continue with your study once a pilot study has been completed successfully and the results conform to your established requirements Conducting a pilot study will help you to detect potential issues with your test design or test environment and will help you resolve and avoid them before the actual study is conducted Tobii Studio may be limited in the type of analysis you can do depending on how the study was designed and conducted Be aware of any potential limitations by completing a full pilot study including analysis Skipping these steps may result in erroneous or incomplete data or analysis options after the study may be limited 29 User Manual 30 Tobii Glasses Eye Tracker 7 Tobii Glasses Workflow Pages 31 43 Tobii Glasses Checklist Using Tobii Glasses without IR Markers including Analysis with Tobii Studio If you are using IR Markers go to page 44 for the Workflow with IR Markers Preparation pages 10 21 Charge the Recording Assistant batteries Charge the Calibration IR Markers Insert the charged Recording Assistant battery Insert the memory card Connect the glasses to the Recording Assistant Check date and time settings NA ed ee TI Check to ensure the participant is wearing the glasses properly Pilot Study page 29 Before conducting an actual study follow the steps below to perform a complete pilot study 1 Complete a pilo
12. considerably less time An empty IR Marker will charge from 0 to 50 in about 1 5 hours To reach a 100 charge it will take an additional 5 6 hours of charging User Manual LED indicator The LED indicator on an IR Marker indicates the state of the IR Marker There are two IR Marker modes Calibration mode and IR Marker Holder mode Calibration mode Calibration mode occurs when the IR Marker is not placed in an IR Marker Holder and a pair of active glasses is within range This mode is used to conduct a calibration A solid green light indicates the glasses have been recognized and a calibration signal is being transmitted by the IR Marker Calibration mode without a Holder pair of active glasses detected eol O IR Marker Solid Green Battery Status To check the battery status of an IR Marker just connect it to a Holder and observe the LED indicator It will briefly show the battery status with colored blinks before going into the IR Marker Holder mode For example 5 green blinks indicates the IR Marker is fully charged and 3 blinks shows it has about 75 battery left When the LED shows an Orange or Red light you should consider charging it before starting a study Battery Status when placing the IR Marker in a Holder Green blinks 5x 1x Orange blinks 2x Red blinks 1x 100 50 Charge Less then 40 charge Less then 20 charge IR Marker Holder mode IR Marker Holder mode occurs when the IR Marker is connected
13. eye is then relatively larger than at farther distances Measure average participants distances to stimuli or use marked and pre measured distances as a guide during a study when selecting the correct parallax settings 69 Tobii Support contact SWEDEN GLOBAL GERMANY 46 8 522 950 10 Phone 49 69 2475 034 27 Phone support tobii com support amp Qtobii com www tobii com www tobii com Support hours 9 am 5 pm Support hours 9 am 5 pm Central European Time GMT 1 Central European Time GMT 1 NORTH AMERICA 1 703 738 1320 Phone support us tobii com www tobii com Support hours 8 am 5 pm US Eastern Standard Time GMT 6 JAPAN 61 3 0 93 33 16 Phone support jpQ tobii com www tobii co jp Support hours 9 am 5 30 pm CIA Tobii Illustrations and specifications do not necessarily apply to products and services offered in each local market Technical specifications are subject to change without prior notice All other trademarks are the property of their respective owners
14. marker below the playback controls towards the tortoise on the left to slow down the replay speed Edit or delete a logged event by right clicking on the event in the events list or by right clicking on the event bookmark in the timeline and select Edit Log Entry or Delete Log Entry C Exporting Event Data To export the event data 1 Click the Data Export tab in Tobii Studio Select the desired Output to One single file or to Individual files as desired Select the file type from the File extension dropdown list and name the file s Click the Load Settings button and choose Coding Scheme Events You can select more data to be added to your export by ticking the corresponding checkboxes Click the Export Data button to export the event data For more details about the Data Export in Tobii Studio please read section 10 Exporting Data in the Tobii Studio User Manual File View Tools ForSight Help Design and Record Replay Visualizations Areas of Interest Statistics m o E Select Data Set Export Data Load Settings Save Settings Help Output One single file File extension Enter file name Options Cell format Column Order Select columns for the data export Check Uncheck General data Contains data about export data studio version project and test name participant characteristics recording information and current fixation filter Media data Contains data abo
15. memory card 5 Follow steps 1 4 above to get to the Memory card screen 6 Select Format 7 When asked if you want to Continue formatting the media select Erase all Push Cancel if you do not want to format the memory card Numbering The maximum amount of sessions is 100 per memory card The Sessions numbering is continuous When a session is removed it will leave a gap in the numbering and continue where it left off to ensure that each session has a unique number for later reference or to be included in your study log Changing the Memory card or formatting the Memory card keeps the numbering of the recording sessions continuously When a session is removed it will also delete the recording and calibration data Non calibrated recordings will not show any gaze data in Tobii Studio Sessions Em Main menu 1 0 Session s gt a Session s 1 0 gt Session s 1 ess gt Options Options Options a Session s 2 View Session gt Use prev calibration ae Cancel Select Session s 2 E e 0020006 Menu Options Options Confirm 2 t Use previous calibration This will copy the calibration from session 1 to session 2 Cancel Accept Tobii Glasses Eye Tracker Using Sessions A session is a container for all recording data of a single recording and a single personal calibration It can also only include only a recording or a calibration by itself A new empty session
16. reduced significantly gt Participant wearing Tobii Glasses Shopping shelves research object IR Markers B IR Markers within the glasses view Glasses field of view B IR Markers out of the glasses view Close o Suggestion for additional IR Markers Middle l l T Glasses field of view at a specific distance Far away The visual area covered by the Tobii Glasses Scene Camera at different distances Approximated scene camera visual area coverage width W and height H at different distances W80 x H70 cm 1 meter W160xH140 cm 2 meter o Q o v v D N o 3 Q 20 O m z O W19xH16 inches 2 feet W38 x H 33 inches 4 feet W777 x H 67 inches 6 feet The scene camera coverage is comparable but not exactly equal to the actual IR Marker sensor field of view since it uses a different sensor 47 User Manual 48 Maximum AOA IR Marker coverage There is an inherent maximum to the size of AOA size due to the fact that 4 IR Markers always have to stay within the field of view of the glasses IR Marker Sensor See the illustrations below for an explanation of how the maximum AOA can be roughly estimated for a specific distance When varying the distance to an AOA the Maximum AOA will also vary therefore always estimate the maximum AOA from the closest distance the participant will may be positioned during your study By finding the maximum angles that 4 IR Markers can sti
17. screen when the battery reaches the final 10 20 of residual charge Replace the battery as soon as possible or connect the AC adapter as soon as possible The Recording will close any ongoing recording and automatically shut down the Recording Assistant when the battery is critically low Expected battery life will increase after a few charging cycles empty to full Tobii optimizes the shipped batteries beforehand although some additional charging cycles may still be needed to reach full capacity Charging the Recording Assistant battery while in the unit AC Adapter Power Socket Adapter A battery placed in the Recording Assistant will also charge when the AC adapter is connected to the Recording Assistant To connect the AC adapter simply twist the Power Socket Adapter that came with your Tobii Glasses clockwise on the AC adapter and plug it into the power socket before connecting it to the Recording Assistant Charging using the AC adapter will however take considerably more time than charging using the supplied dedicated battery chargers To store the AC adapter again press the button on the Power Socket Adapter and twist counterclockwise to release it User Manual Memory card The memory card slot is located on top of the unit see page 7 Only use the memory card provided with the Tobii Glasses or the same type and brand with the exact same specifications max 4GB High Speed Memory Transcend TS4GSDHC150 or Lexar 133X only
18. the Default Distance for the selected recording 1 With the fullscreen Parallax Correction Tool open click the down arrow button to the right of the stated current Default Distance 2 Select a predetermined range or Set custom distance If setting a custom distance type the desired distance in centimeters and click OK The Default Distance header turns green and states the new distance 3 Click Save changes in the top right section of the tool when finished making alterations This will take you back to the Replay screen Changes made to both the Default Distance and individually selected sections are highlighted in green before they have been saved Click oave changes while in the fullscreen Parallax Correction Tool to update the gaze data overlay Only after the save and update has taken place will the replay show the data corrected for the set distances o Q o v v D N o 3 Q 20 O m z O Select Close in the fullscreen Parallax Correction Tool to exit the Tull screen mode without saving any changes made If you try to close without saving changes you will be asked if you want to save your changes before closing 57 User Manual 58 To specify a new section with a new distance l 23 Average 70 150 cm Close 20 50 cm Middle 40 80 cm Set custom distance Create Log Entry Edit Log Entry Delete Log Entry Open the fullscreen Paral
19. the Import button to import the selected recordings Tobii Studio will then import each Tobii Glasses Session as a Tobii Studio Recording The Participant Name included in each recording is equal to the session number from the Recording Assistant 33 User Manual Selecting the Video import check box can Repair corrupted video frames during import Only select this option if the originally imported video shows corrupted video frames Importing using this setting will take considerably more time 34 Tobii Glasses Eye Tracker Replaying the Recording Viewing a Recording in Tobii Studio The Tobii Glasses recordings can be used in the same way as a regular Tobii Studio recording can be used You can playback the recording showing the gaze data create segments and scenes although not applicable in dynamic video export the recording as a movie and insert events using a Coding Scheme The Tobii Studio manual contains information about general Tobii Studio functionality Alternatively you can also use the Help button to find more information this button is always located top right in Tobii Studio View a recording by opening the Tobii Studio Replay tab and selecting a recording from the Recordings list Glasses Demo Project Tobii Studio 2 2 2 File View Tools ForSight Help Design and Record Replay V BA Shopping Research Generate Export RTA Duration Participant O 3105 Qualitative Fruit O 12505 Qualitative SunCrea
20. you will be able to do cross calculations on the events actions such as counting frequency calculate duration percentage fixated etc Replace the description with numbers to help make calculations easier Continue to add copy data from each recording to a single analysis file SPSS or Excel sheet for example to do more cross calculations and group statistics on all the exported event data Exported data in Microsoft Excel A a R E F 8 Participant Shampoo 043D Li 17 Participant properties 18 19 Gender Female 20 Age 33 40 2 Product Offer Mot relevant 22 Test Shampoo 24 Filter settings _26 Eye Right 27 Validity Normal 28 Fixation filter Raw data 28 30 Timestamp Number PupilRigh Event EventKey Data1 Data2 3 o 0 o 32 O GlassesRecordingstarted 300 0 0 33 33 1 0 34 67 2 0 35 100 3 0 55 500 27 0 333 28 0 367 25 0 1000 30 0 1029 LogData 0 Found Shampoo Scanning middle section first 64 1033 31 0 ES 1067 32 0 E 1100 33 0 67 1133 34 0 1167 35 0 ES 1200 36 0 0 af Manual coding on multiple computers at once Any manual coding can also be done on several computers at the same time providing they all have a valid Tobii Studio license for example 1 person is coding recording 1 20 another person could code 21 40 etc To do this a single Main project has to be exported from one computer and then imported to the other computers Do not creat
21. 2 feet Distance guidelines for IR Marker detection Max distance 2 5 meter 8 2 feet at a O degree angle Minimum distance 60 centimeters 2 feet At least 4 IR Markers should always be within view of EE e Detection range the IR Marker Sensor or Scene camera 8 Set of 4 o jui E IR Markers 3 With an AOA to the left of the participant the angle of detection will be greater than if it was to the right This 2 5m 2m 1 5m is due to the IR sensor being built in the right side of the glasses Participant with Tobii Glasses In range UD Edge of range Out of range 0 deg IR Marker placement For analysis of AOA s at distances between 1 2 meters 3 3 6 6 feet from the participant optimal distance for IR Markers its recommended to mount IR Markers on the AOA at a minimum of 10 centimeters apart from each other If a participant gets closer 1 meter or lt 3 3 feet to the AOA the IR Markers may drop from view of the IR Marker sensor and scene camera In these situations make sure to have at least 4 extra markers closer together in the center of the AOA with a minimum distance of 10 centimeters apart to still be able to aggregate data from this distance provided 4 IR Markers are still within the field of view of the glasses Read about lobii Glasses field of view and IR Markers on the next page The minimum distance at which IR Markers can be used is about 60cm at closer distances detection will get less robust w
22. Coverage of 4 Combined coverage with 4 IR Markers additional IR Markers using 8 IR Markers Snapshot of an AOA with the combined coverage of 8 IR Markers o z Q Q v v D N o 3 Q e 70 S a A O HH Maximum AOA IR Marker coverage Shopping shelves research object 49 User Manual Snapshots Taking a snapshot with Tobii Glasses To take a snapshot 1 Select Menu or Back until you reach the Main menu 2 Scroll down the Main menu options until you reach Camera and then push Select to open the Camera menu Wait until the screen shows a live video of the scene camera that is built into the glasses 3 Hold the glasses in your hands and point the camera towards the object or scene you want to take a snapshot of Move the glasses around while looking at the display to adjust the position if necessary You can see a preview of the detected IR markers Select Snapshot on the Recording Assistant to take the snapshot when at least 4 IR Markers are included in the Snapshot The IR Markers will be best detected when they are in the center of the scene camera image 4 The screen will then show a preview of the snapshot Select Save to save the snapshot or select Cancel to return to the live video view of the scene camera 5 Select Back to return to the Main menu Optionally use a digital camera for a higher quality and bigger snapshot You can manually define the IR Markers in Tobii Studio using the Impo
23. Firmware Tobii Glasses are always shipped with the most current firmware essential software installed on the Recording Assistant at the time of shipping but new versions may be available when using the Tobii Glasses for the first time Firmware updates can add new features fix newly found bugs or improve performance To make sure you know what firmware you are using on the Recording Assistant go to Main Menu About to check your firmware version To upgrade to a new firmware you have received or downloaded 1 Turn the Recording Assistant off 2 Copy the new firmware to the memory card using your PC using the supplied card reader or any internal SD card reader 3 Connect the power adapter to the Recording Assistant and insert the memory card 4 Turn the Recording Assistant on and wait for the upgrade to start and complete Do not interrupt this process 5 Before continuing format the memory card on the Recording Assistant or remove the firmware from the memory card using a PC Read about Formatting the memory card on page 22 UserManual Setting the Date Time and Date Format Step 2 To set the Date Time and Date Format on the Recording Assistant 1 Make sure the Recording Assistant unit is on Hold the ON OFF is LM button to turn the Recording Assistant on 2 Select Menu until you reach the Main menu indicated in the top menu bar ERES 3 Scroll through the Main menu items until you reach Settings and then push Sel
24. GlassesRecor 00 00 37 000 Custom 175 cm Custom 150 cm Custom 175 cm Custom 150 cm Close 20 50 cm Glasses Toole O Events e asses Tools ings Recording Rec 43 length 00 00 37 000 participant Shampoo 043D Shampoo 036 Shampoo 035 Shampoo 034 Shampoo 033 Shampoo 032 AA Shamo ochbaham scrape oc tutem Schampo oeM EIN Shampoo Trial Rec n TY ver mmmm i T Pringles 030 e e N rie 029 til Ms A eg Pringles 028 Rr Pringles 027 Prinalas 17 e Text 00 00 000 00 25 624 00 27 495 00 28 147 00 29 383 00 37 000 x ya iddle i Custom 175 cm Custom 150 cm Glasses Tools pum ond Fana ae E ul e Segments Scenes Glasses Tools Settings Recording Rec 43 length 00 00 37 000 participant Shampoo 043D 64 Tobii Glasses Eye Tracker Tobii Glasses Smart IR Workflow 65 66 User Manual Appendix I Technical Specifications Tobii Glasses Eye Tracker Eye tracking technique Eye tracking Data rate Firmware Calibration procedure Post calibration Calibration validation Sound recording Automatic data mapping Parallax compensation tool Ingress protection Pupil Centered Corneal Reflection Dark pupil Monocular right eye 39 Hz Embedded System guided 9 points Yes with IR Markers Yes featured in Tobii Studio IP class 20 Frame material Color Le
25. Set time Set Distance Clear Clear all Sections where changes are made turn green and state the new distance and cleared sections return to the Default Distance Follow the onscreen prompts Manual Coding Coding Scheme dialog box Use this dialog to define an ani coding scheme n gged events are used to search and eres matialy exact video segment luring replay A description and a shortcut key can be event The qui ck lo Ha if you want to be able to add free logging Quick logging Color Tobii Glasses Eye Tracker Manual Coding in Tobii Studio Manual coding is a more qualitative data analysis method where you create events at specified times to be able to calculate different statistics quantitative amp qualitative using statistical analysis software such as Excel or SPSS for example to count durations spent on areas of interest compare behavior use events to sum a number of actions count or categorize qualitative data to find specific patterns or averages Before you can start with manual coding you will have to import a your recordings set the participant variables and correct for any parallax that may still be present since parallax offsets may cause a false interpretation of the data Manual Coding consists of the following steps A Setting the Coding Scheme B Coding C Exporting Event Data D Data analysis in an external statistical a
26. Stop amp save Continue NA Starting a recording To start a recording 1 Press the REC II button on the Recording Assistant to start your recording for the selected Session The Track Status screen is displayed and the eye tracker will start to Auto adjust to detect the pupil 2 a Ifthe adjustment is successful a screen will display the detected pupil as a dot within the rim of the glasses The dot should be green and reasonably stable in size and location Consider repositioning the glasses if you notice sudden changes or jumping of the green dot in order to improve stability and eye tracking quality Push Continue to start recording b If the pupil is not detected or detection is lost during the Track status screen a dialog will show that the glasses may have to be repositioned Push Retry after making the appropriate changes 3 Recording starts as soon as Continue is pressed Key lock The Recording Assistant will lock all keys during recording except the REC II key Pressing the REC II key will unlock the keys again and pause the recording Pausing and stopping a recording A recording can be paused or stopped at any time by pressing the REC II key A pause screen will now show with the option to Stop amp save the recording or Continue with the recording During the pause screen the eye tracker will not collect any data Eye Tracking Troubleshooting If during the Track Status screen the pupil seems diffi
27. a that shows at least 4 IR Markers Open the image from NE ka its stored location The Snapshot Tool dialog bor will now open impor Image as Snapshot p showing the selected image Add Testu 2 Each IR Marker must be marked with the correct ID unique PS number on the IR Marker Holder in the image Locate each ee marker and right click to add an existing IR Marker ID or add a new ID by entering the respective number in the dialog box Once marked the IR Marker will have the following speech bubble icon next to it Sa 3 Using your mouse drag the start of the speech bubble IR Marker ID icon exactly over the center of the IR Marker gt 4 Delete an IR Marker by right clicking and selecting the delete option 5 IR Marker IDs can also be activated or deactivated by clicking on them green red colored 6 Crop the image if necessary by dragging each of the corners to the desired position At least 4 IR Marker IDs have to be within the cropped area All IDs outside of the cropped area will be disabled but can also be enabled again to still use those IR Mu ctl Markers for defining the AOA Click OK when this is completed 7 Select OK to save the IR Marker positions and start mapping of Step 9 the gaze data on the imported Snapshot Snapshot Tool e o oom x Select the snapshot trom the Media List and select any of the visualization options such as a Heat Map to view this visualization for the selected
28. an be placed anywhere in the AOA except in a straight line as long as at least 4 IR Markers are visible to the glasses camera and IR Marker sensor during the recording All IR Markers have to be placed in the same two dimensional plane 4 Place the IR Markers IDs in a consecutive order with numbers close to each other in order or ranking to get the best performance This will also make manually marking them on an imported image as Snapshot a little easier D Note the relative position of each IR Marker Holder and the ID numbers This can be used as a reference when manually marking the IR Marker IDs in Tobii Studio on an imported image used as a Snapshot o Q o o o D N o 3 Q 20 S m O Do not move the Holders during the study in order to preserve A accurate data collection Always make sure the IR Marker Holders and IR Markers are securely mounted to prevent them from moving falling or being stolen during a test 45 User Manual Using IR Markers IR Marker range The IR Markers have a limited range The smallest IR Marker detection range using the minimum size AOA 4 IR Markers at 10cm 4 inches apart is shown below This minimum detection range can be widened by adding pairs of IR Markers next to above or below the current AOA Add a set of at least 4 extra IR Markers pointing outwards not in one line to increase the angle of detection The maximum range will still remain 2 5 meters 8
29. and then double click on the Removable Disk icon labeled GLASSES corresponds to the memory card to open the memory card and view its contents When opening the Import Dialog again Tobii Studio will open the last selected folder Computer 7 Double click on the Project folder Project O to open it Then press the Open button to open the Tobii Glasses project project gpf This opens the Import dialog box Full path Computer G30 Project 0 gt project gpt OSDisk C Devices with Removable Storage 2 DVD RW Drive D GLASSES E 3 HENO oj By Organize Em Views i NewFolder Name Date modified Size Session 1 di Session_2 Session 3 Ml kea PEE de Session_5 de Session_6 de Session 8 J Session 9 n UL Session 11 J Session 12 Computer i di Session 14 Session 15 Jj Recently Changed d Session 16 di Session 17 n Session 18 B My Box Files JJ Session JJ Session 20 J Session 21 E Dropbox Session di Session 23 p Session_24 E Pictures Le Session Le Session 26 di Session_27 Ip Music d Session di Session 29 di Session_30 mp dec d Session di Session 32 p Session_33 di Public d Session d Session_35 Session 36 Session di Session_38 Session 39 Le Session J Session 41 J Session 42 di Session_44 Session 45 di Session_47 B Session_48 d Session 50 Session 51 d Session 53 li Session 54 Le Session 57 p Session_58 d Snapshots project gpf Favorite Links E Documents
30. and warnings when using Glasses Never remove the battery or memory card without first turning the device completely off Always keep the lenses clean The IR reflective glass is very sensitive to smudges dirt and scratches Eye tracking quality could decrease significantly when the lenses are not clean Only use the supplied micro fiber cloth to clean the glasses The touch buttons on the Recording Assistant are only meant to respond to the touch of human skin These buttons will not respond when touching them when for example wearing gloves However they may still function when they are covered by for example a thin layer of plastic such as a protective foil It is recommended to always keep a charged battery in the Recording Assistant to avoid draining the clock battery When using IR Markers Switching modes between Calibration mode and IR Marker Holder mode and vice versa will not take place after placing or removing an IR Marker from an IR Marker Holder if a pair of active glasses is present switched on and in range of the IR Markers To make an IR Marker switch to a different mode while active glasses are present cover the IR Marker or the IR Marker Sensor on the glasses for a few seconds to allow the IR Marker to switch between modes Cover the IR Marker sensor or store the glasses in their case in between recordings when conducting a study with the IR Markers mounted close to your setup for receiving and preparing participants
31. ants or Independent Variables such as Age or Gender since there is no indication that these recordings are in fact different participants from different SD cards To avoid this potential issue always insert a unique prefix in the Participant Name Prefix text entry field every time you import an additional SD card in a Tobii Studio Test This feature will append the chosen prefix to the participant name effectively creating a unique name and avoiding recordings being merged into existing participants 02 Tobii Glasses Eye Tracker 12 When you are finished press the Import button to import the selected recordings Tobii Studio will then import each Tobii Glasses Session as a Tobii Studio Recording The Participant Name included in each recording is equal to the session number from the Recording Assistant Selecting the Video import check box can Repair corrupted video frames during import Only select this option if the originally imported video shows corrupted video frames Importing will take considerably more time o Q Q N N D N o 3 Q 20 S A O 53 User Manual 54 Replaying Recordings Viewing a Recording in Tobii Studio The Tobii Glasses recordings can be used in the same way as a regular Tobii Studio recording can be used You can playback the recording showing the gaze data create segments and scenes although not applicable in dynamic video export the recording as a movie and
32. anual IR Markers Color Black 60 250 cm IR Marker range 03 6 98 4 Tolerated angles of IR markers 90 150 degrees depending on viewing distance Integrated NiMH battery Battery with RGB LED battery indicator 240 minutes Battery duration of IR markers in active mode amp stand by 14 days Charging time 0 100Yo max 7 hours Dimensions 27 x 29 x 24 mm height x width x depth lix 11x 0p 319 weight 0 07 Ibs IR Marker Holders Mounting screw holes mounting tape surface 240 for the recordings imported and analyzed with Tobii Studio versions 3 1 or higher and the latest firmware Unique IDs 120 for the recordings imported and analyzed with Tobii Studio versions 3 0 and lower Dimensions 292 x 35 x 18 mm height x width x depth 0 9 x 1 1 x 0 7 4g eid 0 01lbs 68 Tobii Glasses Eye Tracker Appendix II Parallax Explained A parallax occurs because of the displacement of the scene camera in relation to the eye of the participant wearing the glasses The images below not drawn to scale illustrate the viewing of an object at 3 different distances for three different Parallax settings The blue line represents all the actual points at which one person could look while looking straight forward The blue dots are sample distances 40 100 300 cm The orange line represents how the gaze would be mapped in Tobii Studio for each of the three Parallax settings The orange dot is the mapped gaze point of the a
33. ata samples 30Hz max 30 per second are shown Select the Settings button under the timeline to access settings such as changing the Color and Opacity of the Gaze overlay or setting the Trail duration of the gaze data Recommended setting for trail duration is 0 200 seconds showing about 6 gaze points at a time 0 050 is the lowest setting and will only show about 2 gaze points at a time For more detailed frame by frame analysis of all Glasses Data use the Glasses Data Viewer as described on page 56 Tobii Glasses Eye Tracker Recordings and participant numbering Recordings are numbered consecutively according to the order in which they are imported into Tobii Studio The Session number from the Recording Assistant is shown under the Participant column right click Show Participant in the Recordings overview Order the recordings by Date to keep them in chronological order Variables such as Participant Name Age and Gender should be individually changed directly after importing recordings from a single memory card Change the variables before importing recordings from another memory card to avoid having duplicate names e g two times a POO1 as the numbering will be of the same format on each memory card Independent variables can be changed by selecting Independent Variables from the Tools menu in the top menu bar in Tobii Studio Read about Tobii Studio settings such as Independent Variables in the Tobii Studio Manual Segments an
34. battery in the Recording Assistant Only remove the battery whenever the Recording Assistant is completely turned off The Memory card cannot be Hot swapped To remove or replace the memory card 1 First make sure the Recording Assistant is off Turn the unit off by holding the ON OFF button 2 Remove the memory card and insert a new memory card 3 Use the ON OFF button to turn the device back on and continue recording Changing the Memory card or formatting the Memory card keeps the numbering of the recording sessions continuously Tobii Glasses Eye Tracker IR Markers Charging the IR Markers Included in the package is one or more depending on package IR Marker Chargers that can each charge up to 10 IR Markers at a time When more than 1 charger is supplied the package will include a splitter to split the power of a single adapter over three different power outputs one for each supplied charger IR Marker LED indicator IR Marker connection points IR Marker front To place an IR Marker in the charger Connect the power adapter to the charger The chargers Power LED indicator should turn green Hold the marker with the IR Marker front facing upwards With the connection points towards the center of the charger insert the IR Marker in a free slot Press the IR Marker firmly into place it should snap in its holder Of ON gt The LED indicator of the IR Marker will turn blue indicating that it started charging Remo
35. cording time per recording approx 70 min Tobii Glasses Eye Tracker Using the controls on the Recording Assistant The controls of the Tobii Glasses Recording Assistant are easy to find and use Function buttons Press and hold the ON OFF button to turn the unit on or oft Press the REC II button while viewing any menu on the Recording Assistant to start and pause a recording Press the CALIBRATE button to add a calibration to the session either before or after the recording To create a new session at any point press the NEW button A New session cannot be created when an empty session is already available Scroll bar and selection keys Use the scroll bar and the selection keys to navigate through the on screen menus These touch buttons respond to the slight touch of a finger Move your finger lightly over the scroll bar to scroll through the items in the menu The current item is highlighted in blue Touch the selection key to make your selection The text above the respective selection key corresponds with its action when touched Front display amp controls Function buttons S SE ON OFF button E n a gt Scroll bar NEW session button Back Options NA REC I REC MH button Left selection key WA CALIBRATE CALIBRATE button Right selection key Turn the Recording Assistant on by holding the ON OFF button and releasing once the startup screen is shown Tobii logo The device wil
36. cted to the set distances Select Close in the fullscreen Parallax Correction Tool to exit the full screen mode without saving any changes made If you try to close without saving changes you will be asked if you want to save your changes before closing Tobii Glasses Eye Tracker To specify a new section with a new distance 1 Open the fullscreen Parallax Correction Tool 2 In the timeline select the time you want to set a distance for Do so by dragging the timeline marker to the start of the desired interval and then dragging the right handle to the end of the interval For setting a more precise interval right click the estimated selection click Set Time for Selection enter the exact start and end times and click OK 3 Right click the selection and move the mouse over Create Parallax Correction from Selection Step 4 4 Select a predetermined range or Set custom distance If setting a custom distance type the desired distance in centimeters and click OK The selected interval is added to the Distance timeline in green Set Time for Selection Clear Selection Create Parallax Correction from Average 70 150 cm Close 20 50 cm Middle 40 80 cm Set custom distance Create Log Entry Edit Log Entry 5 Click Save changes in the top right section of the tool when finished making alterations This will take you back to the Replay screen Delete Log Entry 6 Click th
37. ctual viewed blue dot The distance between the orange line and the blue line is the offset for that setting For the three selected samples this offset is highlighted in red The green dot in the star represents an accurate parallax setting for the distance being viewed where the mapped gaze point concurs with the actual gaze point viewed Distance from Tobii Glasses gt 300 cm gt 10 feet Pa 100 cm a n N Lu 0 IA 13 fee R UT 73 73 IN J A J IN J Parallax Setting 300 cm 100 cm 40 cm The images above also show what happens to the gaze point when we change a parallax distance setting If we focus on the rectangular area someone is looking at an object at 1 meter the blue dot The accurate parallax correction would be set to 100 cm the middle image If the parallax is set to 300 cm left image the mapped data orange dot is offset to the right of the actual viewed point blue dot If the distance is set to 40 cm right image the mapped data orange dot will be offset to the left of the actual viewed point blue dot In other words if the gaze point is mapped to the left of the object actually looked at increase the parallax correction distance If the gaze point is mapped to the right of the object viewed decrease the parallax correction distance Use precise parallax settings when compensating for close distances e g closer then 100cm 3 3feet to a B stimuli as the difference between the camera and the
38. cult to find please try the following First give it a few seconds as the Tobii Glasses try to find the pupil automatically Checkif anything is obstructing the eye or eye tracking sensor or illuminators look out for hair long eye lashes mascara shifted lenses or droopy eyelids he glasses should be completely clean use the micro fiber cloth to clean them Ifthe pupil is still not detected try to move the glasses slightly lower or higher up on the nose of the participant or try to change or adjust the nose pad if necessary to change the position of the Glasses in relation to the eyes Good accuracy can depend on many factors including Accurate calibration right distance exact points light conditions Correct placement of the eye tracker and good tracking in all corners Fixed position of the eye tracker during the entire study secured headband Sunlight or other strong light sources interference Recording and calibrating in the same light condition can improve the eye tracking quality and accuracy and is always recommended Calibrating Step 1 2 3 1meter 3 3 feet Em Track status 1 Auto adjustment completed ES Back Continue Step 5 amp 6 Step 7 Calibrate 41 Tobii Glasses Eye Tracker Conducting a calibration A calibration is needed for each Session to be able to use the gaze data in Tobii Studio The calibration can be done either before or after a recording
39. d Segment Groups Under the Replay tab you can create Segments as parts of your recordings Segments can be grouped into Segment Groups You can create multiple segments of different recordings and add those to a Segment Group and then you can further analyze the data of that Segment Group in the Statistics and Visualizations tabs and also use them when exporting the data in the data export view This is useful when you want to cut out from your analysis certain portions of data of the recordings and use in your analysis only the data Segments that are relevant for your study Recordings list can be filtered by Segment Groups in both Visualizations and Statistics tabs in order to show and analyze only the data corresponding to that group of selected parts of recordings Read about Segment Groups in the Tobii Studio Manual Samples percentage and eye tracking quality Tobii Studio can show the percentage of the total samples Glasses is a 30Hz eye tracker which means it takes 30 samples of gaze data per second that are mapped within the scene camera video stimulus area Right click on any recording and select Show Samples to show this percentage This percentage may but does not necessarily show the eye tracking ability quality any blink or gaze outside of the scene camera view will be discarded and will result in a lower total samples percentage even if all gaze data that is within the view of the scene camera has high eye tracking ability quali
40. d statistics trom the collected eye tracking data The Recording Assistant records the eye tracking data from the glasses together with the video of the scene camera sound from the build in microphone and IR Marker position information captured by the integrated IR Marker sensor to a memory card The collected eye movement data can be overlaid and aggregated for multiple participants using the Tobii Studio analysis software by defining a picture or Snapshot of the AOA Using the captured IR Marker position information the eye tracking data for multiple participants can be mapped on this single Snapshot IR Markers InfraRed Markers The IR Markers are small devices that when connected to a IR Marker Holder communicate their exact location to Tobii Glasses using infrared light Each IR Marker Holder has a unique ID number Tobii can supply up to 120 unique IDs for the IR Marker Holders When the IR Markers are connected to an IR Marker Holder they are used to define different areas on a scene that can later be used for analysis called Areas Of Analysis AOA The glasses will receive and transmit the exact locations and position of these AOAs to the Recording Assistant The collected IR Marker location information is used by the Tobii Studio analysis software to map the gaze data of multiple participants on a single picture of the AOA A single IR Marker without an IR Marker Holder is used during the calibration procedure as a flexible manua
41. d the recording will provide an average data quality Replacing a calibration To replace the calibration of a calibrated session 1 Select the calibrated session that you want to replace with a new calibration 2 Press the Calibrate key to initiate a new calibration 3 The Recording Assistant will now prompt whether you wish to conduct a new calibration for the already calibrated session The old calibration will be discarded 27 User Manual 28 Tobii Glasses Eye Tracker 6 Pilot Study Conducting a Pilot Study Before conducting an actual study always follow the steps below to perform a complete pilot study 1 Complete a recording including calibration During this recording make sure to test any potential angle of approach a participant might take to verity how your setup works under different conditions Analyze and replay the data in Tobii Studio Confirm that the data is correct and there is no unexpected data loss and your setup is working as expected and meets your established requirements Use the Glasses Data Viewer feature right click on any imported recording in the Replay tab to access To analyze a recording in more detail and find how the IR Markers are picked up by the glasses for your specific study setup Confirm that the expected data and results can actually be obtained during analysis by doing a full analysis of the pilot recording If necessary make adjustments to your setup or test procedure and
42. e separate projects as they should be exactly the same to later be able to merge the data again When changes are made the exported projects can be imported again into the Main project and merged with the project To export a project use the Export Project Archive option from the File menu to import use Import Project Archive select the option to Merge the project when prompted for this during import o Sf Q o v v D v o 3 Q 20 S m O Always remember to make frequent backups of your project to an external drive in case anything goes wrong with your PC Either use the Backup Database feature from the File menu this will copy the database in a faster way than export or also use the exported project archives as a backup later 61 62 User Manual Visualizations AO l s and Statistics from Snapshots Creating Visualizations AOls and Statistics Snapshots are used for creating Visualizations in Tobii Studio and for creating AOI s Areas of Interest which are important when conducting statistical analysis in the Statistics tab of Tobii Studio After properly importing and preparing the Snapshots by following the instructions in this chapter begin to create visualizations by opening the Visualizations tab in Tobii Studio With the appropriate Snapshot and Recording s selected select the desired type of Visualization Gaze plot Heat Map or Cluster Read more about AO s Statist
43. e the selected session Use the scroll bar in the Session menu to select a different B session The session number is always indicated in the center of the menu bar marked by a sign Using a single calibration for multiple sessions When multiple sessions are created for a single participant consecutively without calibrating in between only the initial calibration it is possible to copy the initial calibration for that participant to his her other sessions Ensure that the participant has not moved the glasses in between sessions in which case a new calibration should always be done You can only copy the calibration from the previous Session to the next hence start by selecting the next session on the list after the one that is calibrated Highlight select a session and select Options to view more options From the options list select the Use prev calibration option Choose Accept in the following screen to allow the copying of the calibration from the previous session to the currently selected one 23 UserManual Recording Step 1 E Track status 41 0 AA SN Em Track status 1 J i Auto adjustment completed Back Continue Ez Track status 41 Auto adjustment failed try repositioning e glasses Cancel Retry Step 3 LZ Rec pause 1 Recording o0 Press Rec ll to unlock and pause ES Rec pause 1 Paused 00 00 01 24
44. e Glasses Tools button at the bottom and notice the gray interval with the distance you selected Multiple corrections can be made before clicking the Save changes button If creating a new parallax correction that covers any part of another correction you will be prompted whether you want to continue with overwriting the previous distance To change or remove a specific section of the recording 1 With the fullscreen Parallax Correction Tool open 2 Right click the section you want to make a change to Step 3 3 Select which change you would like to make Set time Set as Distance Clear Clear all Sections made changes to turn green and state the new distance and cleared sections return to the Default Distance m 4 Follow the onscreen prompts Set distance b Clear Clear all 39 o 2r Q Q N N D N O m gt O User Manual Manual Coding Manual Coding in Tobii Studio Manual coding is a more qualitative data analysis method where you create events at specified times to be able to calculate different statistics quantitative amp qualitative using statistical analysis software such as Excel or SPSS for example to count durations spent on areas of interest compare behavior use events to sum a number of actions count or categorize qualitative data to find specific patterns or averages Before you can start with manual coding you will have to import your recordings set the
45. ect to open the Settings menu 4 Date and time should be highlighted Push Select to open the Date and time menu Step 3 5 Scroll through the Date and time menu items until you reach the setting you wish to change Then select Enter See below for E Wain menu et e instructions for the respective settings Setting the Date To set the Date 6 Follow steps 1 5 above choosing Date in step 5 7 Use the scroll bar to select the year and push Next to move on to the month 8 Use the scroll bar to select the month and push Next to move on to the day 9 Use the scroll bar to select the day and select Save to save the new Date Or select Previous once or twice and then select Cancel to keep the old date wa Date andtime 1 Date gt Time Date format Back 2011 2012 Previous 20 Tobii Glasses Eye Tracker Setting the Time To set the Time 6 Follow steps 1 5 on the previous page choosing Time in step 5 7 Use the scroll bar to select the hour and push Next 8 Use the scroll bar to select the minutes and push Save to save the new Time Or select Previous once or twice and then select Cancel to keep the old time Setting the Date format To set the Date format ES ES S 6 Follow steps 1 5 on the previous page choosing Date format in YII step 9 T Use the scroll bar to highlight the desired date format and then push Save to save the new Date format Or select Previous once or twice a
46. ed during the recording against what is seen by the scene camera Because the eye tracker can assume where the participant is looking during the calibration it can assess how well it is able to map the collected gaze samples against the points where the participant is supposed to be looking after adjusting the parameters in the mathematical model The Accuracy score is based on an average of all samples collected during the calibration of the offset between expected gaze point i e where the participant is expected to be looking and calculated gaze point i e where the eye tracker has calculated that the participant was looking If the average is below a certain threshold the calibration gets a five star rating and if itis above another threshold it gets zero stars Between these two extremes is a linearly proportional scale The score shown in Session s list ka HI Sessionis 17 Menu Options gt Tobii Glasses Eye Tracker The score shown in Session s list For practical purposes to allow the user to get a quick overview of the recordings available only one of the scores is shown in the Session s list The listed score is always the lower of the two i e the tracking or accuracy score Even though only one score is shown it does provide a good indication of what data quality can be expected from a recording If a score of 3 stars is shown it means that either the Accuracy or Tracking score was 3 stars an
47. ene camera Is never in the exact same position as the eye Read about Parallax on page 69 Tobii Studio includes a Parallax Correction Tool This tool allows you to set the relative distance between whatever the participant was looking at and the Glasses and will calculate the correct gaze position on the scene video based on these settings When importing the Default distance setting is always the calibrated distance of 1 meter To see the current distance settings and parallax corrections 1 After importing the appropriate Project and Recordings into Tobii Studio open the Replay tab in Tobii Studio 2 From the Recordings list on the left hand side select the Recording you wish to work with 3 Atthe bottom of the window click the Glasses Tools button The Glasses Tools panel will expand between the timeline and the horizontal scroll bar In the Glasses Tools panel the Default Distance is stated which corresponds with the the white area in the adjacent timeline representation Individually corrected sections are indicated in gray with the appropriate distance noted To open the Parallax Correction Tool 4 Follow steps 1 3 above to open the Glasses Tools 5 Click the Ruler 1 button below the playback controls to the right of the stated current Default Distance The fullscreen Parallax Correction Tool will now open owitching to full screen may take a moment at which Tobii Studio might disappear for a second To change
48. er snapshot click the eye si button to open a selection window Select the snapshots and click OK to add them to the Glasses tools IR Marker coverage overview Hold the mouse cursor over a snapshot name to see a preview of the snapshot Glasses Demo Project Tobi Studio 2 2 2 File View Tools ForSight Help Design and Record Visualizations Statistics Shopping Research Generate Export Duration Participant Raw Data is used when viewing Glasses recordings O 31 05 Qualitative Fruit Q 1250s Qualitative SunCream O 410s Shampoo 051 O 58 0s Shampoo 050 O 620 Shampoo 049 y Select snapshots O 40 0s Shampoo 048 Select which snapshots you want to be visible O 750s Shampoo 047 Q 52 0s Shampoo 046D O 40 0s Shampoo 045 O 53 05 Shampoo 044 o 37 0s Shampoo 043D O 65 05 Shampoo 042 210 190s Shampoo 041 BO 460s Shampoo 040D EQ 470s Shampoo 039D O 99 0s Shampoo 038 O 55 0s Shampoo 037 O 37 0s Shampoo 036 O 40 0s Shampoo 035 O 440s Shampoo 034 O 52 0s Shampoo 033 O 55 05 Shampoo 032 O 33 0s Shampoo Trial Rec O 736 Pringles 030 Check Uncheck All Cancel O 140s Pringles 029 gt gt O 41 05 Pringles 028 O 29 0s Pringles 027 LA 2 02 Prinalas NDE m Filter by category Select amp IXB 25 fr Ol Maa CNO mm V Shampoo Time 200020000 Snapshot coverage E JI Pick up product 00 00 25 624 a I Basket 00 00 27 495 Pick up product 00 00 28 147 Basket 00 00 29 383
49. he Tobii Glasses Varta EasyPack XL 3 7 V Battery life is dependent on usage and can last for up to 70 minutes of use Read about Battery life on the next page To remove the battery 1 Make sure the Recording Assistant is turned off before removing the battery 2 Hold the unit with the front display facing the palm of your hand 3 Open the battery compartment by pressing the bracket on the top of the cover down and pulling it out 4 Pull the battery out Read about Hot Swapping the battery on page 16 To insert the battery 1 With the label facing down and the connection points towards the bottom of the Recording Assistant insert the battery in the compartment at an angle starting at the bottom of the unit press into place 2 Place itin the housing so it sits flush with the casing It might appear as a loose fit but the battery cover will secure it in place once closed 3 Align the battery cover with the housing and insert the cover at an angle starting at the bottom of the unit 4 Close the cover until it snaps into place Connecting the glasses Connect the glasses before turning on the Recording Assistant Plug the glasses connector on the end of the cable connected to the glasses to the glasses port located on top of the Recording Assistant see page 7 With the display of the Recording Assistant facing up the small arrows on the connector should be facing up as well The connector should easily snap into place
50. hen the body is moving and looking at a stationary object some fixations may therefore be split up into separate fixations Select Raw Data from the fixation filter selection menu Tools gt Settings Fixation filters to create visualizations using Raw Data points which includes all captured eye tracking samples 30 per second These points are not fixations and therefore any statistics or results based on fixations as a metric do not apply Instead use metrics based on visits visit duration visit count etc or percentages percentage fixated Importing Snapshots onapshots can be taken and imported in two different ways Using the glasses built in scene camera Import a snapshot from a digital camera Use the glasses built in scene camera You import these snapshots along with your recordings in Tobii Studio The Tobii Glasses recognize the IR Markers and automatically maps their position on the Snapshot in Tobii Studio The ID unique number of each IR Marker Holder is shown in a tag over every IR Marker in the Snapshot Tool Read about Snapshots on page 50 and Importing Recordings on page 51 53 Tobii Glasses Eye Tracker Step 1 Importing a Snapshot from a digital camera pr ETE To import an image as a Snapshot A ids 1 Open the File menu in Tobii Studio and select Import Image as Eu cur onapshot Select an image of the AOA taken with any digital E import Project Archive Cui P camer
51. hich can cause data to not be mapped correctly on a Snapshot Mounting IR Markers IR Markers can be placed in almost any position e g upside down sideways angled as long as the front is facing the participant and the IR Marker reference points measured from the IR illuminator stay on the same plane see the image below Place the IR Markers at an angle pointing towards the glasses worn by a participant to improve the tracking of IR Markers by Tobii Glasses IR Marker top view IR Marker side view IR Marker reference point IR Marker AOA plane Mounting surface 46 Tobii Glasses Eye Tracker Tobii Glasses field of view and IR Markers The illustrations below show that the Tobii Glasses scene camera and IR Marker Sensor as with any camera have a limited field of view that influences the detection of IR Markers Any IR Markers outside the glasses field of view will not be detected Since an AOA requires at least 4 IR Markers it could be necessary to add additional IR Markers to increase the coverage and flexibility of your setup allowing for more free movement by the participant while still detecting the 4 IR Markers needed to create an AOA Especially at closer distances collecting data using IR Markers can require much more than 4 IR Markers to still fully cover a large area by taking this into account and limiting how close a participant can approach the AOA the amount of IR Markers required can be
52. hich sub folders to create 3 Set the Export scope by selecting one of the available options 4 In the Preset Configurations tab select Event data by checking the box in front of it For more options click the Advanced tab to create your own export configuration 5 Click the Export button to export the event data Folder settings Output folder C UsersNvk Desktop Create sub folders Project Test Recording Export scope Current recording All recordings in test Segments in current recording All segments from all recordings in test Description Data for all gaze points Event data Fixations on AOI s one ADI on each row Fixations compatible with ClearView fixation data export Compatible with ClearView combined export Delete configuration Tobii Glasses Eye Tracker D Analyzing the data The event data Tiles that are exported can be opened either in SPSS Excel or any other program that supports Tab Separated Values TSV files The file will show you the following output A header with recording data and independent variables and participant information for grouping your data and help with any labeling In the following columns there are Timestamp Event amp EventKey not needed for analysis Data1 containing the set description of the action event Data2 any Log message added to the event Descriptor not applicable For example sort your data for example on the description and
53. ics and Visualizations in the Tobii Studio User Manual A Gaze Plot Design and Record Replay y Shopping Research Web Groups fig Media Rec 28 Video Pringles 028 Rec 28 Rec 29 Video Pringles 029 Rec 29 Rec 30 Video Pringles 030 Rec 30 GAZE PLOT Trial 031 Rec Rec 31 Video Shampoo Trial Rec 03 lec Rec 32 Video Shampoo 032 Rec 32 Media Rec 31 Video Time 00 00 00 000 00 00 31 116 Rec 33 Video Shampoo 033 Rec 33 Participant filter All Participants Rec 34 Video Shampoo 024 Rec 34 Number of participants included 1 1 100 SETTINGS Rec 35 Video Shampoo 035 Rec 35 Rec 36 Video Shampoo 036 Rec 36 Rec 37 Video Shampoo 037 Rec 37 Rec 38 Video Shampoo 038 Rec 38 APPEARANCE 8 STYLE Rec 39 Video Shampoo 039D Rec 39 Rec 40 Video Shampoo 040D Rec 40 Border Color Custom Color y Rec 41 Video Shampoo 041 Rec41 ill Color Recording Colors y Rec 42 Video Shampoo 042 Rec 42 r Y Show Rec 43 Video Shampoo 043D Rec 43 X aze Trail Y Show 100 Segment Group Full recordings V Participant Recording Color zi A Shampoo Trial Rec 031 ORe 31 EE Zoom 100 m m Start 00 00 00 000 Duration 00 00 31 116 E 1 0 del M i gt gt Data Sliding Window 00 00 01 000 YS 00 10 00 00 15 25 00 00 00 00 00 05 00 00 20 00 00 00 00 Tobii Studio s fixation filters do not support smooth pursuit when the eye follows a moving object or w
54. insert events using a Coding Scheme The Tobii Studio manual contains information about general Tobii Studio functionality Alternatively you can also use the Help button to find more information this button is always located top right in Tobii Studio View a recording by opening the Tobii Studio Replay tab and selecting a recording from the Recordings list Glasses Demo Project Tobii Studio 2 2 2 File View Tools ForSight Help Replay eB P B e Shopping Research Generate Export RTA Duration Participant 2 Raw Data is used when viewing Glasses recordings O 31 05 Qualitative Fruit O 125 0s Qualitative SunCream O 410s Shampoo 051 O 58 0s Shampoo 050 O 590 Shampoo 049 O 40 0s Shampoo 048 O 750s Shampoo 047 O 520s Shampoo 046D O 40 0s Shampoo 045 O 53 0 Shampoo 044 O 270s Shampoo 043D O 650 Shampoo 042 20190 Shampoo 041 5 0 460s Shampoo 040D EQ 470s Shampoo 039D O 99 0s Shampoo 038 O 55 0s Shampoo 037 O 2700s Shampoo 036 O 40 0s Shampoo 035 O 44 0s Shampoo 034 O 520s Shampoo 023 O 650s Shampoo 032 O 33 0s Shampoo Trial Rec Q 73 0s Pringles 030 Q 14 0s Pringles 029 Q 410s Pringles 028 Oo 29 0s Pringles 027 me Filter by text Category Time Text 3 GlassesRecord 00 00 00 000 XB n Pick up product 00 00 25 624 T 1 a nn El Basket 00 00 27 495 0 gt al JZ Pick up product 00 00 28 147 e a AA K u 2 Basket 00 00 29 383 V Dans Gaza Dara O
55. ion_2 d Session 3 d Session 5 d Session 6 d Session 8 Session 9 J Session 10 Ji Session 11 J Session 12 AR Computer J Session 13 Ji Session 14 J Session 15 Jj Recently Changed Session 16 d Session 17 d Session 18 B My Box Files Session 19 d Session 20 Session 21 E Dropbox Session 22 d Session 23 Session 24 E Pictures p Session_25 Session 26 d Session 27 E Music p Session_28 d Session 29 d Session 30 B Searches Jo Session 31 J Session 32 Jo Session 33 B Public Session 34 d Session 35 d Session 36 p Session_37 d Session 38 n Session 39 JJ Session 40 Le Session 41 Le Session 42 Ji Session 43 JJ Session 44 Ji Session 45 Session 46 d Session 47 d Session 48 Le Session 49 JJ Session 50 JJ Session 51 Session 52 d Session 53 p Session_54 p Session_55 n Session 57 p Session_58 A Session 59 d Snapshots Li project gpf c2 po cEEEEE m E ews Wt New Folder IF Documents E Recent Places BE Desktop Type GPF File Size 39 8 KB Date modified 2010 02 22 03 30 32 Tobii Glasses Eye Tracker 8 Select the Recordings you wish to import by checking or unchecking the respective check boxes or by pressing the Check Uncheck All button located below the list to select or deselect all the recordings 9 Import Data Into Select if you wish to import the recordings into an Existing test or a New test Select the option Existing and use the drop down list to choose an existing test or select New
56. is created automatically when starting the Recording Assistant or when pressing the New key on the Recording Assistant When starting the Recording Assistant you will start in the Session s menu The currently selected session number is always indicated in the same top menu bar For example if the currently selected session is number 9 and you are viewing the Session screen the top menu bar would say Session s 9 You can also select the Session s menu from the main menu This menu will show an overview of all sessions that are created Creating a new Session An empty session with no recording or calibration will be created on the Recording Assistant when pressing the New button an empty session is displayed A calibration of a session can be done before or after making a recording Stars 1 5 will indicate that a calibration has been completed and indicate calibration quality fewer stars means some data samples were lost during calibration one star will be subtracted for each instance of data loss Read more about Calibration on page 25 When both a recording and a calibration have been completed the Session s menu will show the recording time and the calibration quality for each session Select Options to view more options Selecting View Session from the Options will show detailed information about the selected session including the creation date and time and whether they are calibrated or not Selecting Delete Session will delet
57. is document All rights reserved Tobi Technology AB User Manual Table of Contents 1 Product Cale ccs saree se IKIWA Genwetearde cenas ads os Oe 5 2 Tobii Glasses ata Glance 0 ocococccccc eee eee eee eee eee ee hh 6 Emo 0 Oia TP 6 ATA aiii os a IRGC Cr GIN iS TTL III ILU LIUIUS T ODI GIASSeS colo A ou AAA a o S andar a d a 8 ME Ii eas ee A ANA ee oes PA 8 3 HowtoUsethisUserManual wmnanuauzuzuzunuunu na aamua 9 Prepa cda rias ri a AI WA 10 GS O gas ches eared ees UI A 10 s REC ORIN IA uns KI Sane E acento 12 E TESI nach ree en Saat E O pibus GU PR NET NIME U EOS PEE 17 PGS FMC A EE e o OE ne o EEEN T TEET 19 oe AP e o ei ee 19 5 Recording with Tobii G asses ococccoccoccnnnn a 22 E lo is AAA E hte re eer er a ee ae ne E tT ree ey en en aa 22 SCS 0 aera a toas 23 z IRGC OCMC acc anna EE A E NUES PU Nd CR Mur EVI REM MEER DS UE 24 eect t mE EU E Te Tt Teer Te eer Te AO 25 6 Pilot IIIA AWA howe tens oe ses os 29 7 Tobii Glasses Workflow celere hh RR ee eee eee hh hh hans 31 amp Tobit Glasses CheCKlist 22i a ob d docu ted clic drca dedos or wet erae cans aede raid eta 31 o AA e E UI ie ia E a S E ER Ees 32 BRE le AG RECO IA IA a AIKA ANA AA ded odd 35 Glasses Dala VIEWS irrita sica 37 Taralotomeecllorr AA kina cas Rr dub Gor add IA dd ca ag Se di bI RC CR dd 38 ae Ela A o A o T AO 8 Tobii Glasses Smart IR Wor
58. ixations group of gaze samples in the same place displayed as a single fixation in that area Instead all raw data samples 30Hz max 30 per second are shown Select the Settings button under the timeline to access settings such as changing the Color and Opacity of the Gaze overlay or setting the Trail duration of the gaze data Recommended setting for trail duration is 0 200 seconds showing about 6 gaze points at a time 0 050 is the lowest setting and will only show about 2 gaze points at a time For more detailed frame by frame analysis of all Glasses Data use the Glasses Data Viewer see page 37 35 User Manual Recordings and participant numbering Recordings are numbered consecutively according to the order in which they are imported into Tobii Studio The Session number from the Recording Assistant is shown under the Participant column right click Show Participant in the Recordings overview Order the recordings by Date to keep them in chronological order Variables such as Participant Name Age and Gender should be individually changed directly after importing recordings from a single memory card Change the variables before importing recordings from another memory card to avoid having duplicate names e g two times a POO1 as the numbering will be of the same format on each memory card Independent variables can be changed by selecting Independent Variables from the Tools menu in the top menu bar in Tobii Studio Read ab
59. kers mounted in their IR Marker Holders placed anywhere on the Area of Analysis AOAs are recognized by the IR Marker Sensor in the Tobii Glasses at any time it can detect at least 4 or more IR Markers By taking a photo or Snapshot of an AOA Tobii Studio can overlay the aggregated gaze data from multiple participants on this single image By using the placement of the IR Markers as reference points for each participant data can be mapped independent of individual angles of approach or varying distance from the participant to an AOA Read about Snapshots on page 50 To define an Area of Analysis 1 Make sure the IR Markers are charged Check the LED indicator to see their battery status while you insert the IR Markers in their Holders Read more about the IR Marker LED indicator on page 18 2 Mount the IR Marker Holders in the AOA Use either the screwholes to mount and remove the Holders in a permanent setup or use any other mounting solution such as strong double sided tape or putty for a more flexible mounting solution The IR Marker Holders are designed to be mounted in almost any position The IR Markers should have a clear line of view to the participant Don t place anything in front of the IR Markers IR Markers placed high or low should be mounted at an angle towards the eyes of the participant to improve IR Marker detection Read about IR Marker setup on page 46 49 3 IR Markers function best when used in a square grid but c
60. kflow 0 0 0 ccc eee eee eee eee eee eee eens 44 Tobi Glasses Smart IR CHECKIGE eo acis accutane C oir ve pars vee wa or egi E b eae UE ra dox deni pc vant d 44 Mi P e 05 E A R E E ERE 45 SiG E E TE TET I EID E A AA ant apni E O E D 46 AA AAA E ATAA Aa 50 5 IMPONE RECURS re ee 1 ee 1 1 0 a aos 51 ae ICO WING E 1e 3 da 110 HA TEIL AA 94 Glasses Dala IA animaron dou dp nd 46 aci ed Pap de poa Ra Cod 56 E 0 0 48690182 AA IA E SU II KA IAA 57 ME uc MI AA me In re eee ee eee ee ree rye 59 Visualizauons AQIS end Siausues MOM onaps0lS IIIA 62 ie dci es kai KA AA AA Wa IA 64 Appendix l Technical Specifications 00 0 eee ee eee eee eee eee 66 Appendix II Parallax Explained 0 cece eee ee eee eee eee hh eee eee eee eee eee 69 Tobii Glasses Eye Tracker 1 Product Care Temperature and humidity Do not place the eye tracker or IR Markers in places subject to extreme temperatures and humidity such as on top and or near a heating element or in a damp room Storage temperature 10 C to 60 C 15 F to 140 F Usage temperature OPC to 35 C 32 F to 95 F Sunlight Do not expose the eye tracker to direct sunlight Sunlight affects eye tracking performance severely and can overheat the eye tracker with longer exposure The eye tracker is not designed for outdoor use or exposure to direct sunlight Eye tracking generally does not work in direct sunlight Shielding the eye tracker adequately from the s
61. l then check the SD card and start up If there is no SD card found the device will turn off The startup procedure may take up to a minute to complete The Session menu is always the first menu displayed after turning on the unit The name of the menu currently being viewed can be found at the top of the display in the top menu bar Read about Sessions on page 23 Turn the Recording Assistant off by holding the ON OFF button until a new prompt screen is presented this prompt will say Quit select Yes by touching the Right selection key The Recording Assistant will now power down If you do not want to turn off the device select No by touching the Left selection key User Manual Clock battery The clock battery powers the Recording Assistant s internal clock saving the time and date settings even when the main battery is removed The clock battery should last for at least a month on its own without any battery or power connected When storing the Tobii Glasses for a longer period of time place a fully charged battery in the Recording Assistant to prevent the clock battery from draining The battery that powers the unit s internal clock is located in the back of the unit in the main battery compartment see figures below To replace the clock battery 1 Make sure the Recording Assistant is turned off before continuing with the next step Hold the unit with the front display facing the palm of your hand 2 3 Open the battery com
62. lax Correction Tool In the timeline select the time you want to set a distance for Do so by dragging the timeline marker to the start of the desired interval and then dragging the right handle to the end of the interval For setting a more precise interval right click the estimated selection click Set Time for Selection enter the exact start and end times and click OK Right click the selection and move the over Create Parallax Correction from Selection Select a predetermined range or Set custom distance If setting a custom distance type the desired distance in centimeters and click OK The selected interval is added to the Distance timeline in green Click Save changes in the top right section of the tool when finished making alterations This will take you back to the Replay screen Click the Glasses Tools button at the bottom and notice the gray interval with the distance you selected Multiple corrections can be made before clicking the Save changes button If creating a new parallax correction that covers any part of another correction you will be prompted whether you want to continue with overwriting the previous distance To change or remove a specific section of the recording Step 3 o Set time Set distance Clear Clear all With the fullscreen Parallax Correction Tool open Right click the section you want to make a change to Select which change you would like to make
63. ll be detected the maximum AOA can be estimated A Snapshot should never include more than the maximum AOA as the eye tracker will not be able to map data outside the maximum AOA size IR Marker coverage with 4 IR Markers Total IR Marker coverage at least 4 IR Markers have to stay within the field of view of the glasses Maximum AOA Snapshot of the AOA Participant with Tobii glasses Shopping shelves research object Tobii Glasses Eye Tracker How to extend the total IR Marker coverage The illustrations below show how additional IR Markers can be used to extend the total IR Marker coverage of an AOA By adding more IR Markers you can extend IR Marker coverage and therefore the maximum AOA size where 4 IR Markers are still within the field of view of the glasses camera The Tobii Glasses only require 4 IR Markers to define an AOA but may use any amount or combination of at least 4 markers therefore all IR Markers used on a shelf should be included within a single Snapshot To fit more IR Markers on a snapshot a panorama photo stitching software such as the freely available Microsoft Reseach Image Composite Editor ICE software can be used to create a snapshot that includes all IR Markers This type of Snapshot will always have to be manually imported and marked in Tobii Studio using the Import Image as Snapshot feature which will open the Snapshot Tool for manually defining IR Marker positions in any picture IR Marker coverage
64. lly moved calibration point IR Marker connection points IR Marker Connection points LED indicator IR Marker front IR Marker ID IR Marker Holder Placing the IR Marker in the IR Marker Holder Removing the IR Marker from the IR Marker Holder Tobii Glasses Eye Tracker 3 How to Use this User Manual This user manual is set up to accommodate all users of Tobii Glasses including both users with and without the Smart IR Markers Both types of users should read the Preparation chapter and the Recording with Tobii Glasses chapter Once done with those each type of user should follow the appropriate workflow Users without IR Markers should follow the Tobii Glasses Workflow and users with IR Markers should follow the Tobii Glasses Smart IR Workflow The workflows are differentiated by the orange tab on the right hand side of the page Preparation Pages 10 21 Start by making yourself familiar with the preparation procedures The Preparation chapter will guide you through the different components features and functions needed to use the Tobii Glasses correctly Recording with Tobii Glasses Pages 22 26 This chapter explains the basic operations required when making a recording and performing a calibration Pilot Study Page 29 This chapter explains the steps needed to conduct a successful Pilot Study Workflows Pages 31 43 Pages 44 65 This manual contains two workflows At the start of each workflow is a checklist
65. ly use this as a last option to complete a difficult or post calibration always try to adjust the glasses first Using this method may result in reduced trackability as the participant will not keep their eyes wider open in the same way during the actual recording You can always stop a calibration and recalibrate by pressing Stop Right selection key and Recalibrate Left selection key 25 26 User Manual Step 8 Step 8 Calibrate 1 Step 9 Calibration 1 c alibraton Result Accept 8 Watch the Recording Assistant screen while moving the IR Marker slowly over each calibration point in the Virtual Calibration Plane and waiting until the point turns green before continuing to the next Continue until each point of the calibration grid on the Recording Assistant has turned green 9 Select Accept to accept the calibration or Recalibrate to start a new calibration and discard the current one As a result of the calibration you see a Calibration Result message on the screen together with a quality rating for each of the Accuracy and Tracking ranging from 1 to 5 stars The lowest calibration score is shown as one red colored star The second to lowest score is shown as one yellow star The Tracking score The tracking score is a measure of quantity of samples captured by the eye tracker where the features needed to perform good eye tracking were available To get the best results the eye tracker need
66. m Shampoo 051 o Q Q N v D v O m gt O Pringles 027 amp 3 GlassesRecord 00 00 00 000 00 00 12 078 amp 2 Pick up product 00 00 25 624 _QOOQQ_ AA A Le npn m al Basket 00 00 27 495 Z Pick up product 00 00 28 147 m Basket 00 00 29 383 ity j E E E V Ocaw Gare Desa Opacity Trail duration Overlay color Replay User Camera Snap to time markers 3 GlassesRecord 00 00 37 000 0 30012 Seconds H On On Drew Mouse Clicks Transparent As data from head mounted eye trackers can include so called smooth pursuit eye movements current fixation filters cannot handle this type of eye movement to calculate so called fixations Therefore only the Raw Fixation Filter can be used to view the glasses data meaning the gaze overlay will show all Raw gaze data captured by the eye tracker without any filtering at a 30Hz sampling rate All current fixation filters do not fully support smooth pursuit eye movements when the eye follows a moving object or when the body is moving and looking at a stationary object When replaying Tobii Glasses recordings in the Replay tab the fixation filter will be switched automatically to Raw Data When creating visualizations or making statistics Raw Data should be selected from the fixation filter settings Tools gt Settings Fixation Filters if smooth pursuit eye movements are present in the data Raw Data will not show f
67. me providing they all have a valid Tobii otudio license for example 1 person is coding recording 1 20 another person could code 21 40 etc To do this a single Main project has to be exported from one computer and then imported to the other computers Do not create separate projects as they should be exactly the same to later be able to merge the data again When changes are made the exported projects can be imported again into the Main project and merged with the project To export a project use the Export Project Archive option from the File menu To import use Import Project Archive select the option to Merge the project when prompted for this during import Always remember to make frequent backups of your project to an external drive in case anything goes wrong with your PC Either use the Backup Database feature from the File menu this will copy the database in a faster way than export or also use the exported project archives as a backup later 42 Tobii Glasses Eye Tracker 43 User Manual 8 Tobii Glasses Smart IR Workflow Pages 44 64 Tobii Glasses Smart IR Checklist Using Tobii Glasses with IR Markers including Analysis with Tobii Studio If you are not using IR Markers go to page 29 for the Workflow without IR Markers Preparation pages 10 21 Charge the Recording Assistant batteries Charge the Calibration IR Markers Insert the charged Recording Assistant battery Insert the memory card Connect the glasses
68. mport one or more recordings Glasses Demo Project Tobii Studio 2 2 3 1 Connect the Memory card reader to the computer If your File View Tools Forsight Help computer has an integrated Memory card reader use that instead sao IR 2 Turn the Recording Assistant off remove the memory card and Jl Open Project Ctri O TP HN M a insert it in the memory card reader m Export Project Archive Ctrl E E Import Project Archive Ctrl 3 Close any AutoPlay dialog boxes that appear and Start Tobii ES Studio 4 n the Tobii Studio Project Library dialog box create a new Project Backup Database and Test This will open Tobii Studio to the Design and Record Unlock Test Ctrl U view D From Tobii Studios menu bar click File and select Import Glasses Data Step 6 6 A dialog box will open now select the Computer folder and then double click on the Removable Disk icon labeled GLASSES corresponds to the memory card to open the memory card and view its contents When opening the Import Dialog again Tobii Studio will open the last selected folder 7 Double click on the Project folder Project O to open it Then press the Open button to open the Tobii Glasses project project gpf This opens the Import dialog box Full path Computer G30 Project O project gpf OSDisk C Devices with Removable Storage 2 Step 7 Open p wy Organize pag Ee EE d Date modified Type Size B Sess
69. n depth qualitative analysis of the data The Glasses Data Viewer includes easy controls and short keys for replaying and pausing the recording frame by frame steps or for example skipping forward or backward in steps of 1 5 or 60 seconds The Glasses Data Viewer also offers a text export of all IR Markers including a marker used for calibration without any IR Marker holder indicated as 0 detected during the selected recording per frame With the possibility to export IR Marker data also comes the possibility to recognize events marked by IR Markers in a recording even when only a single IR Marker was in view whereas the analysis of AOAs needs at least 4 IR Markers To open the Glasses Data Viewer for a specific recording 1 Open your Project in Tobii Studio and go to the Replay tab 2 From the list of Recordings right click on the recording you would like to view the data of 3 Select Review Glasses data Close the Glasses Data Viewer and repeat the steps above to view data from a different recording Controls amp Features A File Name B Open original video folder Frame number amp Gaze coordinates D Select to highlight IR Markers in the scene video Number of IR Markers detected F List of IR Markers detected including their coordinates in the scene video G Export a tab separated text file tsv format with the detected IR Marker coordinates per video frame H Video playback controls using your keyb
70. n video IR markers 9 01 154 63 02 212 56 03 149 156 04 231 148 05 192 238 06 253 236 07 495 18 09 495 128 11 503 226 Export IR markers G 00 47 03 gt Shift Right 1 sec Alt Right 5 sec Ctrl Right 60 sec D Tobii Glasses Eye Tracker Reviewing Glasses Data in Tobii Studio The Glasses Data Viewer can be used to do the following Make a frame by frame analysis of your recording and gaze position view all Glasses data such as Gaze coordinates per frame including frame number see any detected IR Markers overlaid on the video and individual IR Marker coordinates for a more in depth qualitative analysis of the data The Glasses Data Viewer includes easy controls and short keys for replaying and pausing the recording frame by frame steps or for example skipping forward or backward in steps of 1 5 or 60seconds The Glasses Data Viewer also offers a text export of all IR Markers including a marker used for calibration without any IR Marker holder indicated as 0 detected during the selected recording per frame With the possibility to export IR Marker data also comes the possibility to recognize events marked by IR Markers in a recording even when only a single IR Marker was in view whereas the analysis of AOAs needs at least 4 IR Markers To open the Glasses Data Viewer for a specific recording 1 Open your Project in Tobii Studio and go to
71. nalysis program A Setting the Coding Scheme To set the Coding Scheme 1 With Tobii Studio open to the appropriate glasses Project click Tools in the menu bar and then select Coding Scheme 2 Click a row in the Description column and type the name of the event for example Started Looking at Brand A Stopped Looking at Brand A Selected Brand B 3 Assign a Shortcut to each event by selecting the desired shortcut from the drop down list 4 Enable Quick logging to prevent the New Log Message dialog box trom appearing when you push the shortcut in the Replay tab 5 Double click the respective color to open a color palette and choose the color of the bookmark that is placed on the timeline 6 Repeat steps 2 5 until you have created all your events and then click OK Read about Managing and logging events in the Tobii Studio User Manual Be objective and clear when predetermining the criteria for an event For example the event duration on a specific area begins with the first frame the data point is on the specific area and ends the first frame the data point is outside the area Also take into account the foveal vision size 1 2 degrees of visual angle and any inaccuracies in the data to determine the most probable fixation point If a data point is right next to a point of interest it may still belong to the event of looking at this specific point of interest o Sf Q o v v D v o 3 Q 20 S m
72. nd then select Cancel to keep the old date format Step 7 Cancel 21 User Manual 5 Recording with Tobii Glasses Checking the Status Low battery indication enu Options Step 2 a gt Main menu 1 amp Settings 1 Date and time Memory card Em Memory card 1 Total capacity 3 8GB Ld Used 1MB Free 3 8GB Back Format 22 Checking the battery and memory status The battery indicator is located in the top left corner of the display Charge the battery or connect the Recording Assistant to the power supply if the battery icon indicates a low battery level A memory indicator is located in the top right corner of the display it indicates the memory status as a pie chart e g a full circle indicates an empty memory card To see a more detailed memory status 1 Select Menu or Back until you reach the Main menu 2 Scroll through the Main menu items until you reach Settings Then choose Select to open the Settings menu 3 Scroll to highlight the Memory card option and push Select 4 On the Memory card screen you can see information about the total memory capacity of the card and the amount of free space remaining 5 Push Back twice to return to the main menu Formatting the memory card Format the memory card for example when starting a new study This will erase all stored data and reset session numbering to 1 Read about Numbering below To format the
73. not needed for analysis Data1 containing the set description of the action event Data2 any Log message added to the event Descriptor not applicable For example sort your data for example on the description and you will be able to do cross calculations on the events actions such as counting frequency calculate duration percentage fixated etc Replace the description with numbers to help make calculations easier Continue to add copy data from each recording to a single analysis file SPSS or Excel sheet for example to do more cross calculations and group statistics on all the exported event data Exported data in Microsoft Excel NI a Ba E F 8 Participant Shampoo 043D LI 17 Participant properties 18 19 Gender Female 20 Age 33 40 31 Product Offer Mot relevant 22 Test shampoo 23 24 Filter settings 25 26 Eye Right 27 Walidity Normal 28 Fixation filter Raw data 29 30 Timestamp Number PupilRigh Event EventKey Datal Data2 32 o GlassesRecording tarted 300 o 0 33 33 1 O 34 67 2 0 35 100 3 0 El so a o 60 933 28 0 6 1 367 29 0 62 1000 30 0 Ls 1029 LogData 0 Found Shampoo Scanning middle section first 64 1033 31 0 65 1067 32 0 66 1100 33 0 67 1133 34 0 FE 1167 35 0 63 1200 36 0 70 0 1233 af Rec 43 All Data Manual coding on multiple computers at once Any manual coding can also be done on several computers at the same ti
74. nses Microphone Eye Tracking IR llluminators Nose pad IR Marker Communication Scene camera video format amp resolution Scene Camera snapshot format amp resolution Scene camera lens aperture and focal length Scene camera recording angle visual angle Cable length Frame dimensions height x width x depth Weight Fiber Reinforced Plastic amp Rubber Metallic Silver Black Hot Mirror glass IR reflective coating Integrated 4 Rubber quickly interchangeable Integrated sensor MJPG2000 640x480 pixels 30 fps JPEG 1 3 Mega Pixels F2 8 4 31mm 56 degrees horizontal 40 degrees vertical 1100 mm 23 5 56 175 1 157 2 mm 22 6 9 x62 15 9 0 17 lbs Recording Assistant Tobii Glasses Eye Tracker Display Controls Storage media Maximum card size Maximum file size per recording Maximum recording time Main battery Main battery life Clock battery Clock battery life Connectors Dimensions length x width x depth Weight OLED 160 x 128 pixels Touch sensitive controls amp rubber push keys SD HC card slot Tobii approved SD cards only 4GB 2GB 70 minutes Rechargeable Li Polymer Varta EZpack XL 3 7V 2260mAh 8 4Wh up to 110 minutes CRTI220 9V approximately 1 month without the main battery Tobii Glasses connection port Power input 5V 2 0 A connectors 125 233225 mm 4 84 x 3 27 x 1 3 200 g 0 44 lbs 67 UserM
75. nual Be objective and clear when predetermining the criteria for an event For example the event duration on a specific area begins with the first frame the data point is on the specitic area and ends the first frame the data point is outside the area Also take into account the foveal vision size 1 2 degrees of visual angle and any inaccuracies in the data to determine the most probable fixation point If a data point is right next to a point of interest it may still belong to the event of looking at this specific point of interest 40 Tobii Glasses Eye Tracker Events on the timeline B Coding if Events in the Events list Category Time Text gt GlassesRecord 00 00 00 000 Pick up product 00 00 25 624 Basket 00 00 27 495 4 Pick up product 0 00 28 147 Basket 00 00 29 383 GlassesRecord_ 00 00 37 000 To code Open the Replay tab and select the recording you want to begin to code For each recording during playback use the shortcuts to log events such as the start and stop of an action or individual action counts Logged events can be seen as a bookmark on the timeline and also in the Events list on the left side under the Recordings list Move through the recording by using the on screen playback controls the keyboard Space pause play Right Left Arrow Keys frame forward backward or clicking on the timeline For a more convenient replay speed move the replay speed
76. oard press Space to play or pause Arrow keys to step a frame forward or backward e Shortcut keys for playback The Coordinates Gaze and IR Markers shown in the Glasses Data Viewer relate to the position in pixels on the scene camera video which has a resolution of 640X480 pixels IR Markers can also be detected outside of the scene camera since the IR Markers sensor is a separate sensor which has a slightly different field of view as the scene camera coordinates located outside of the scene camera range may therefore be shown with negative values You will not be able to use any other elements of Tobii Studio until the Glasses Data Viewer is closed The Glasses Data Viewer does not replay any sound recorded by the Tobii Glasses use the normal Replay to hear the recorded sound Parallax Correction Tool Segments Scenes Glasses Tools Settings Default Distance Average Snapshot coverage X E Glasses Tools Segments Scenes Glasses Tools Step 2 Parallax Correction Tool Default Distance Average 7 Average 70 150 cm Middle 40 80 cm A Far Over 150 cm Glasses Tools Set custom distance Tobii Glasses Eye Tracker Correcting for parallax in Tobii Studio When a participant looks at objects from different distances during a test some parallax will always occur when mapping this data to the scene camera video since the Glasses are only calibrated at a single distance and the sc
77. of the Tobii Glasses eye tracking equipment unplug the power cord from the outlet and make sure the device is turned off Both Tobii Glasses and the Recording Assistant have surface coatings that require special care Only use the supplied micro fiber cleaning cloth or similar products specially intended for cleaning screens or glass with a special coating Avoid touching or scratching the glass of the Tobii Glasses and keep the surface clean If the coating is affected or damaged eye tracking quality may be degraded Rubber parts such as the temple arms and the nosepiece can be cleaned with water or disinfectant applied on a piece of soft cloth Avoid contact with any other parts such as the glass or illuminators Accessories Use only provided or approved Tobii Glasses accessories Disposal of the eye tracker Do not dispose of the eye tracker in general household or office waste Follow your local regulations for disposal of electrical and electronic equipment User Manual 2 Tobii Glasses at a Glance Package Contents Included in Base Package and Smart IR Package Tobii Glasses Case Glasses including removable nosepiece IR Markers for calibration 2x Memory cards 4GB 8x Memory card reader Battery charger power cables 2x Glasses head strap Additional power outlet adapters 2x Recording Assistant extra batteries 3x Recording Assistant with 1 battery inside Micro tiber cloth Battery chargers 2x AC adapter p
78. of the entire workflow from setup to analysis Make sure you have read the Preparation chapter and the Recording with Tobii Glasses chapter before proceeding to a specific Workflow The first workflow Tobii Glasses Workflow Includes all information needed to conduct a study using the Tobii Glasses without using IR Markers This workflow also includes information on how to manually code recordings to obtain statistics from the eye tracking data without the use of IR Markers The second workflow Tobii Glasses Smart IR Workflow Explains how to conduct a study using IR Markers and how to conduct the analysis and create visualizations using Tobii Studio Tobii Glasses Tobii Glasses Smart IR Workflow Pages 31 43 Workflow Pages 44 65 Using Tobii Glasses without IR Markers Using Tobii Glasses with IR Markers including Analysis with Tobii Studio including Analysis with Tobii Studio o Sh Q Q N N D N O A O MO J4JOM YI Hews sasse IIqO Visualizations and Statistics can generally not be generated in Tobii Studio when using the glasses without IR Markers unless the glasses are in a fixed position for all participants which would allow the use of Scenes User Manual 4 Preparation Glasses Wearing the glasses Put the glasses on like you would normal glasses As the glasses do not have hinges if necessary carefully bend the black rubber temple arms to put the glasses on Avoid touching
79. oll bar In the Glasses Tools panel the Default Distance is stated which corresponds with the the white area in the adjacent timeline representation Individually corrected sections are indicated in gray with the appropriate distance noted To open the Parallax Correction Tool 4 Follow steps 1 3 above to open the Glasses Tools 5 Click the Ruler 1 button below the playback controls to the right of the stated current Default Distance The fullscreen Parallax Correction Tool will now open owitching to full screen may take a moment at which Tobii Studio might disappear for a second To change the Default Distance for the selected recording 1 With the fullscreen Parallax Correction Tool open click the down arrow button to the right of the stated current Default Distance 2 Select a predetermined range or Set custom distance If setting a custom distance type the desired distance in centimeters and click OK The Default Distance header turns green and states the new distance 3 Click Save changes in the top right section of the tool when finished making alterations This will take you back to the Replay screen Changes made to both the Default Distance and individually selected sections are highlighted in green before they have been saved Click oave changes while in the fullscreen Parallax Correction Tool to update the gaze data overlay Only after the save and update has taken place will the replay show the data corre
80. out Tobii Studio settings such as Independent Variables in the Tobii Studio Manual Samples percentage and eye tracking quality Tobii Studio can show the percentage of the total samples Glasses is a 30Hz eye tracker which means it takes 30 samples of gaze data per second that are mapped within the scene camera video stimulus area Right click on any recording and select Show Samples to show this percentage This percentage may but does not necessarily show the eye tracking ability quality any blink or gaze outside of the scene camera view will be discarded and will result in a lower total samples percentage even if all gaze data that is within the view of the scene camera has high eye tracking ability quality 36 Glasses Data Viewer Step 3 Glasses Demo Project Tobii Studio 0 22 223 2010 10 01 03 47 35 4 File View Tools ForSight Help Design and Record Visualizations Statistics 9 4 Shopping Research Generate Export RTA Duration Participant Raw Data is used whe O 69 0s Shampoo 044 O 370s Shampoo 04 O 650 Shampoo 042 F 9 190s Shampoo 041 E O 50s Shampoo 04 tese EN p Show O 550s Sh O 37 0s She Delete Recording i ano Che Start RTA for Recording Fiter by category Selec Review Glasses data Filter by t t 4 m n gt File 5f8ba5b5 1890 4482 b74f 1 B Open Folder Frame 932 Gaze coordinates 277 185 V Show IR markers i
81. owers Recording Assistant Wall socket adapter for AC adapter Extra storage space Zuia IAMUE Inside the case pocket Tobii Glasses User Manual Tobii Glasses Field Guide or Tobii Glasses Smart IR Field Guide Also included in Base Package R Marker charger AC adapter AC power cable grounded Also included in Smart IR Package IR Marker Case AC power cable Power cable splitter Mounting tape IR Marker Holders 3x10 AC adapter powers IR Marker chargers IR Markers 3x10 IR Marker chargers 3x NAXxzxcu Tobii Glasses Eye Tracker Glasses View of front Illuminators Scene camera jo j j j f IR Marker JJ 4 CU Ime Aa sensor D IR reflective lass Eye tracking sensor 9 View of right side Headband attachment Microphone Rubber temple arm Illuminators Recording Assistant Top connections Clip Glasses port Memory card slot Function buttons Front displa ontrols ont display amp c ON OFF button Scroll bar NEW session button CM REC If button Lett selection key TE CALIBRATE CALIBRATE button Right selection key Bottom connections AC Adapter connector User Manual Tobii Glasses introduction The Tobii Glasses is a mobile eye tracking system with the option to use IR Markers to detine so called Areas Of Analysis AOA s for automated data aggregation AOA s make it possible to obtain visualizations an
82. pacity Trail duration Overlay color Replay User Camera E Snap to time markers 63 GlassesRecor 00 00 37 000 03907 s MA on V O Draw MouseCicks Transparent As data from head mounted eye trackers can include so called smooth pursuit eye movements current fixation filters cannot handle this type of eye movement to calculate fixations Therefore only the Raw Data will be shown view the glasses data Using Raw data means the gaze overlay will show all raw gaze data captured by the eye tracker without any fixation filtering at the eye tracker 30Hz sampling rate The points shown on the screen are therefore not fixations they are all the collected samples of eye tracking data These points all have the same length 33 milliseconds which a fixation filter typically groups into fixations All current fixation filters do not fully support smooth pursuit eye movements when the eye follows a moving object or when the body is moving and looking at a stationary object When replaying Tobii Glasses recordings in the Replay tab the fixation filter will be switched automatically to Raw Data When creating visualizations or making statistics Raw Data should be selected from the fixation filter settings Tools gt Settings Fixation Filters if smooth pursuit eye movements are present in the data Raw Data will not show fixations group of gaze samples in the same place displayed as a single fixation in that area instead all raw d
83. participant variables and correct for any parallax that may still be present since parallax offsets may cause a false interpretation of the data Manual Coding consists of the following steps A Setting the Coding Scheme B Coding C Exporting Event Data D Data analysis in an external statistical analysis program Coding Scheme dialog box A Setting the Coding Scheme To set the Coding Scheme Use this dialog to define an event codi usedt ing scheme Logged events are o search and i A i pi automaticaly are vdeo segments duina replay A desorption and a etc key can be 1 With Tobii Studio open to the appropriate glasses Project click text comments while logging Tools in the menu bar and then select Coding Scheme 2 Click a row in the Description column and type the name of the event for example Started Looking at Brand A Stopped Looking at Brand A Selected Brand B 3 Assign a Shortcut to each event by selecting the desired shortcut from the drop down list Quick logging Color 4 Enable Quick logging to prevent the New Log Message dialog box trom appearing when you push the shortcut in the Replay tab 5 Double click the respective color to open a color palette and choose the color of the bookmark that is placed on the timeline 6 Repeat steps 2 5 until you have created all your events and then click OK Read about Managing and logging events in the Tobii Studio User Ma
84. partment by pressing down the bracket on top of the cover and pulling the cover off 4 Remove the old battery from the battery compartment remove the main battery first to create more space 5 Place the new battery CR1 220 3V cell battery with the positive side facing upwards between the two contacts in the compartment 6 Replace the main battery and the battery cover making sure it snaps firmly into place Clock battery compartment Replacing the Recording Assistant battery and memory card between recordings The Recording Assistant battery and memory card should not be removed while the Recording Assistant A is recording Loss of power to the Recording Assistant for even a moment during a recording will shut the Recording Assistant down and can result in lost recording data or could cause damage to the Recording Assistant and or the memory card Using the AC adapter with Tobii Glasses The Tobii Glasses can also be used with the supplied AC adapter to avoid using the battery when power is available 1 Connect the AC adapter with appropriate wall socket adapter to a power outlet and plug it into the Recording Assistant 2 Turn the Recording Assistant on by holding the ON OFF button Contirm that the charging signal is shown in the top left corner of the Recording Assistant display indicating the AC adapter is connected 3 It is recommended to always leave a
85. rt image as Snapshot feature and the Snapshot Tool AOA Snapshot 3 Recording Glasses or Assistant Digital Camera Wao Main menu 1 Sessions Camera To review your Snapshots About Select Snapshot Album from the Main Menu and Select your Snapshot from the list to review them or push Back to return to the Main menu EJ Snapshot album 1 HS Snapshot 1 y 2010 03 25 Select 50 Tobii Glasses Eye Tracker Importing Recordings Importing recordings into Tobii Studio Step 5 To import one or more recordings Glasses Demo Project Tobii Studio 2 23 1 Connect the Memory card reader to the computer If your File View Tools ForSight Help computer has an integrated Memory card reader use that instead B New cca uds 2 Turn the Recording Assistant off remove the memory card and Jl pen Project Cirl O i oa quu cod n insert it in the memory card reader m Export Project Archive Ctrl E E Import Project Archive Ctrl 3 Close any AutoPlay dialog boxes that appear and Start Tobii amp 3 Import Glasses Data Ctrle Studio amp 3 Import Image as Snapshot 4 Inthe Tobii Studio Project Library dialog box create a new Project Backup Database and Test This will open Tobii Studio to the Design and Record Unlock Test Ctrl U view pz 5 From Tobii Studio s menu bar click File and select Import Glasses Data Step 6 6 A dialog box will open now select the Computer folder
86. s to find as many features as possible but it can still track even if just one feature was found The score is based on a percentage of how many samples that have been recorded during the calibration in which features for eye tracking have been possible to be identified This means that if a score of five stars is given for a calibration more than 80 of the recorded samples contain usable features If only one star is given less than 19 of the samples contain usable features Therefore the score will be lower if the eye cannot be detected at all i e if the participant blinks or looks away during calibration That means that a low score does not necessarily mean that the tracking will be bad during the actual recording but that the eye tracker did not manage to find the features tracked at certain times during the calibration The Accuracy score The tracking score indicates the level of accuracy that can be expected during a recording If this score is high while the Tracking score is low it means that the eye tracker had problems finding features in the eye during the calibration but when it did the accuracy was very good As a result when the recording is done the eye tracker might not be able to track the eye at all times but the samples that are collected provide good accuracy During the calibration the eye tracker collects samples which it tries to fit into a mathematical model that is then used to map the samples collect
87. ses Use the normal Replay to hear the recorded sound 37 38 User Manual Parallax Correction Tool Glasses Tools Segments Scenes Glasses Tools Step 2 Parallax Correction Tool Average 70 150 cm Middle 40 80 cm Far Over 150 cm 00 00 00 000 Glasses Tools Set custom distance Correcting for parallax in Tobii Studio When a participant looks at objects from different distances during a test some parallax will always occur when mapping this data to the scene camera video since the Glasses are only calibrated at a single distance and the scene camera is never in the exact same position as the eye Read Parallax Explained on page 69 Tobii Studio includes a Parallax Correction Tool This tool allows you to set the relative distance between whatever the participant was looking at and the Glasses and will calculate the correct gaze position on the scene video based on these settings When importing the Default distance setting is always the calibrated distance of 1 meter To see the current distance settings and parallax corrections 1 After importing the appropriate Project and Recordings into Tobii otudio open the Replay tab in Tobii Studio 2 From the Recordings list on the left hand side select the Recording you wish to work with 3 Atthe bottom of the window click the Glasses Tools button The Glasses Tools panel will expand between the timeline and the horizontal scr
88. t recording including calibration Analyze and replay the data in Tobii Studio Confirm that the data is correct and your setup is working and can be analyzed as expected If necessary make adjustments and confirm with another pilot recording LT EJ T3 13 Eg O A WON Continue with your study once a pilot study has been completed successfully o en Q Q N N D N O O Recording pages 22 26 1 Check the battery and memory status before starting a recording LI 2 Create a new session for each participant or task LI Co Log participant data and related session information e g session number duration memory card used in a Research Log Calibrate before OR after recording Record Calibrate before OR after recording LI L1 Oo NO oO Ss Repeat lines 3 7 to make additional recordings Analyzing the Recording s pages 32 42 Import the desired recording s Set independent variables for each participant recording Create parallax adjustments for each recording using the Parallax Correction Tool Review Glasses Data using the Glasses Data Viewer for in depth frame by frame analysis If applicable create a Coding Scheme for manual coding and manually code events in each recording TRUE Ll EIER E ER Oar WN Export data such as Raw data or Event data manual coding for further analysis 31 User Manual Importing Recordings Importing recordings into Tobii Studio Step 5 To i
89. test and enter a test name in the text box Step 8 amp 9 Tobii Glasses Import Select sessions and snapshots to import glasses data into existing test or a new test Sessions Snapshots Not Imported a E P 001 gp Y 2011 10 19 10 23 50 Calibrated 0 hrs 0 min 26 sec P002 Y 2011 10 19 10 27 39 Calibrated 0 hrs 27 min 45 sec _ P003 V 2011 10 19 10 30 30 Calibrated 0 hrs 9 min 48 sec l 4 sn4 raw Y sn 5 raw N P 004 V 2011 10 19 11 22 14 Calibrated 0 hrs 2 min 18 sec Check Uncheck All 6 of 6 items selected Check Uncheck All 7 of 7 items selected Import Data Into O Existing Shopping Research New test Participant Name Prefix Import 1 o Q Q N N D v O m gt O Settings A Enter a prefix that is unique in order to prevent these recordings from being merged into existi rticipants in the selected test is eee ance otep 10 10 To correct for parallax Click the Settings button to set the Average Distance between the glasses and the target being viewed This distance is used for calculating and mapping the Settings gaze data accurately on the scene camera video The selected setting will be applied to all selected Sessions on import Read about the Parallax Correction Tool on page 38 Average Distance Gaze data will be calculated for the average distance between glasses and target being viewed 1
90. the Replay tab 2 From the list of Recordings right click on the recording you would like to view the data of 3 Select Review Glasses data Close the Glasses Data Viewer and repeat the steps above to view data from a different recording o Q Q N N D v O m A O Controls amp Features A File Name B Open original video folder Frame number amp Gaze coordinates D Select to highlight IR Markers in the scene video e Number of IR Markers detected F List of IR Markers detected including their coordinates in the scene video G Export a tab separated text file tsv format with the detected IR Marker coordinates per video frame H Video playback controls using your keyboard press Space to play or pause Arrow keys to step a frame forward or backward P Shortcut keys for playback The Coordinates Gaze and IR Markers shown in the Glasses Data Viewer relate to the position in pixels on the scene camera video which has a resolution of 640X480 pixels IR Markers can also be detected outside of the scene camera Since the IR Markers sensor is a separate sensor which has a slightly different field of view as the scene camera coordinates located outside of the scene camera range may therefore be shown with negative values You will not be able to use any other elements of Tobii Studio until the Glasses Data Viewer is closed The Glasses Data Viewer does not replay any sound recorded by the Tobii Glas
91. the glass and the sensors As the glasses should not move around on the head tighten the strap to a secure but comfortable fit The glasses should not be removed during a participant s recording and before the calibration has been conducted The eye of the participant is tracked best when positioned in the center of the frame and ideally 2 75cm 1 1 inches away from the glass but are very tolerable of other distances and positions If necessary adjust the headband and the nose pad Squeeze or pull apart the wings of the nose pad to position the glasses higher or lower on the nose of the participant Do not let hair get in between the eye and the glass or in the way of the eye tracking sensors or camera Tobii Glasses Eye Tracker Nose pad The included nose pad should fit most participants and can easily be adjusted by squeezing or pulling the nose wings together or apart The nosepiece can also be replaced For faces with a less pronounced nose such as Asian facial structures an optional nose pad clip is available that has a more protruding nose pad Nose pad clip Push the nose pad into the slot in the bottom of the nose bridge of the glasses until it clips in place To remove the nose pad clip pull the clip straight out and downward User Manual Recording Assistant Recording Assistant battery The battery compartment of the Recording Assistant is located on the back of the unit Only use the batteries provided with t
92. to correct the interference by one or more of the following measures Recorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help All Tobii Eye Trackers are CE marked indicating conformity with the essential health and safety requirements set out in European Directives Tobii Glasses Eye Tracker Tobii Technology Tobii Glasses Eye Tracker User Manual This document contains information proprietary to Tobii Technology AB The contents are confidential and any disclosure to persons other than officers employees agents or subcontractors of the owner or licensee of this document without the prior written consent of Tobi Technology AB is strictly prohibited No part of this publication may be reproduced stored in retrieval systems or transmitted in any form or by any means electronic or mechanical including photocopying and recording without the prior consent of the copyright holder Document revision December 2012 Tobi Technology AB reserves the right to change the content of this manual without prior notice Changes due to typographical errors inaccuracies or modifications in programs and or equipment ma be implemented at any time Please check the Tobil web site www tobii com for updated versions of th
93. to an IR Marker Holder The IR Marker transmits the unique ID of the IR Marker Holder to the glasses used to define Areas Of Analysis The LED indicator is off in order to remain unobtrusive during a test The LED will blink red shortly when the battery is low 2096 charge IR Marker Holder mode connected to an IR Marker Holder No LED indication Short blink every few seconds IR Marker Holder mode active Less than 20 charge If a pair of active glasses is present the mode will not switch when placing or removing an IR Marker from a A Holder To make an IR Marker switch to a different mode cover the IR Marker or the IR Marker Sensor on the glasses for a few seconds to allow the IR Marker to switch between modes The battery status will show first Charging Status When the IR Markers have been placed in a charger the LED will indicate the charging status Trickle Charging is a slow battery preserving charging cycle that will always take about 5 6 hours even when the IR Marker are already charged when placing them in the charger When this cycle is completed the IR Markers will show a full green light Charging status in the IR Marker Charger Solid Blue Solid Lighter Blue Solid Green 0 50 charge 50 100 charged 100 Charged Fast charging Trickle charging Trickle cycle completed Tobii Glasses Eye Tracker First time use Before using the Tobii Glasses for the first time please read this information carefully Some notes
94. to the Recording Assistant Set the date and time Have the participant wear the glasses properly L EJ EJ EJ EJ L3 LJ Additional Preparations for Smart IR pages 45 50 Define an Area of Analysis AOA and note position and ID of each IR Marker Holder L Take a Snapshot of the AOAs either Tobii Glasses scene camera or a digital camera Pilot Study page 29 Before conducting an actual study follow the steps below to perform a complete pilot study 1 Complete a recording including calibration Analyze and replay the data in Tobii Studio Confirm that the data is correct and your setup is working as expected If necessary make adjustments and confirm with another pilot recording LI ELI L1 L1 LI oR WN Continue with your study once a pilot study has been completed successfully Recording pages 22 26 1 Check the battery and memory status 2 Create a new session for the participant or test L 3 Log participant data and related session information e g session number duration memory card used in a Research Log 4 Calibrate before OR after recording 5 Record 6 Calibrate before OR after recording 7 Repeat lines 3 7 to make additional recordings Analyzing the recording s pages 51 64 1 Import the desired recording s and Snapshots taken with the Glasses 2 Setindependent variables for each participant recording 3 Create parallax adjustments for each recording using the Paralla
95. ty o Q Q N N D N o 3 Q e 70 O O bb User Manual Glasses Data Viewer Step 3 Glasses Demo Project Tobii Studio 0 22 223 2010 10 01 03 47 35 4 File View Tools ForSight Help Visualizations Statistics 9 4 Design and Record Shopping Research Generate Export RTA Duration Participant Raw Data is used whe O 53 05 Shampoo 044 O 370s Shampoo 04 O 650s Shampoo 042 lli 9 190s Shampoo 041 E O 460s Shampoo 04 Toss HE sontby O 29 05 Se lo 550s Sh O 370s She Delete Recording AM An n a Start RTA for Recording Filter by category _ Selec Filter by text File 5f8ba5b5 1890 4482 b74f 1 B Open Folder Frame 932 Gaze coordinates 277 185 V Show IR markers in video IR markers 9 01 154 63 02 212 56 03 149 156 04 231 148 05 192 238 06 253 236 07 495 18 09 495 128 11 503 226 Export IR markers G 00 47 03 gt Shift Right 1 sec Alt Right 5 sec Ctrl Right 60 sec d 56 Reviewing Glasses Data in Tobii Studio The Glasses Data Viewer can be used to do the following Do a frame by frame analysis of your recording and gaze position view all Glasses data such as Gaze coordinates per frame including frame number see any detected IR Markers overlaid on the video and individual IR Marker coordinates for a more i
96. un may prevent sunlight from interfering with the eye tracking Liquids Do not use the eye tracker near water The eye tracker is not water resistant Avoid dripping liquids into any openings of the Tobii Glasses eye tracking equipment Ingress protection IP class 20 No protection against objects smaller than 5mm Keep the eye tracker in a clean and dust free environment When using the equipment temporarily in an outdoor location take adequate precautions against dust and dirt Do not use the eye tracker near water The eye tracker is not water resistant Mechanical shock Do not drop knock or shake the device in order to avoid breaking or damaging the internal electronic circuits Eye tracking quality or accuracy can be seriously affected if the Tobii Glasses or Recording Assistant have been dropped If the eye tracker is exposed to mechanical shock for example when dropped do not try to connect it to a power source Contact Tobii Support for instructions contact information can be found on the back of this manual Power It is recommended that you connect the power cable of the chargers to an outlet with a protective earth ground connection Use an accessible outlet and make sure that the cables are properly placed to avoid a possible trip hazard Transportation Always use the supplied casing and packaging material to transport the eye tracking equipment and provide added protection Cleaning Before cleaning any part
97. ut media name position and size Segment and scene data 0 of 8 selected Contains data about segments and scenes 4 of 11 selected CU 1 of 5 selected Y Timestamp data 1 of 3 selected Ww Contains data about the time stamps available for export Select the data set for the export z Recording event data Select Data Set i 2 of 15 selected 17 E Contains data about events recorded during a recording such as mouse clicks key A presses studio events and external events Gaze event data and AOI activity information Contains data about gaze event data such as fixations and saccades as well as about AOI activity information Gaze tracking data Contains the raw gaze point of each data sample expressed in pixels or millimeters for each eye individually or as an average Eye tracking data and validity codes 0 of 7 selected CU 0 of 15 selected CU 0 of 19 selected CU Contains data such as eye position pupil size and validity codes o Q Q N v D v O m gt O User Manual D Analyzing the data The event data files that are exported can be opened either in SPSS Excel or any other program that supports Tab Separated Values TSV files The file will show you the following output A header with recording data and independent variables and participant information for grouping your data and help with any labeling in the following columns there are Timestamp Event amp EventKey
98. ve and firmly reinsert any IR Markers that don t connect e g when the LED does not light up 6 The IR marker is fully charged when the LED indicator turns green Read about the LED indicator on the next page IR Marker Charger Power LED indicator t ww The LED indicator indicates the different stages of the charging cycle Power supply To remove an IR Marker from the charger tilt it outwards and pull it up this is similar to removal from an IR Marker Holder Battery life of IR Markers The battery life of the IR Markers is dependent on usage When a pair of Tobii Glasses turned on is detected IR Markers will be activated IR Markers never turn off but instead go into a standby mode both while in and out of a Holder If stored or not being activated by a pair of Tobii Glasses that are in range their battery will last for about 14 days It is recommended to keep the markers charged in a powered IR Marker charger until starting a test Always check if the battery status is still sufficient before using them again after a few days Battery life of the IR Markers when constantly activated by a pair of Tobii Glasses is approximately 4 hours However in most cases the duration will be longer since the markers will preserve battery power by switching to standby mode whenever the glasses are out of range Charging the IR Marker completely can take up to 7 hours Depending on the residual charge in the IR Marker this may require
99. x Correction Tool L 4 Review Glasses Data using the Glasses Data Viewer for a more in depth frame by frame analysis of the recorded scene gaze data and IR Marker detection 5 If applicable create a Coding Scheme for manual coding and manually code events in each recording 6 Import image s as Snapshot taken with a digital camera for manually marking IR Markers L 7 Create visualizations and define AOls on imported Snapshots L 8 Use the Statistics Tool in Tobii Studio to conduct statistical analysis on the AOls on imported Snapshots 9 Export data such as Raw data or Event data manual coding or calculated statistics for any further analysis 44 Area Of Analysis AOA AOA AOA 1 2 meter 3 3 6 6 feet lt 1 meter lt 3 3 feet IR Marker IR Marker ID Tobii Glasses Eye Tracker Defining an Area of Analysis AOA An Area Of Analysis is a marked area that can be used to aggregate gaze data for quantitative analysis as well as create visualizations such as gaze plots and heat maps using data from multiple participants An AOA can also be seen as a virtual two dimensional plane defined by IR Markers and a picture or Snapshot of the plane This plane is placed over in an area that will be analyzed In Tobii Studio smaller AOls Areas Of Interest can be defined to be used for producing eye tracking statistics on these areas The virtual two dimensional plane which is the AOA is marked by at least 4 IR Mar

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