MediaQ V2.0 User Manual - University of Southern California
Contents
1. Note Sometime a user can see some markers out of the range This is the case when the starting location of a video i e the location of marker is outside of the query range but some parts of the video overlap with the query range A mobile video usually has a trajectory Only a part of trajectory may overlap with the query range management Lucas Georg n uildinc Oo gt Sem Q Byilding5j Lot M i Brooks Pa Unit USC Thornto Pavilion D ie U hool of Mus hurcl o P Brittingham E Je ool o X hool of Intramural Field xS E gt ic Arts ONE oO Booth Hall Loker Track Inte vat cl 2 2 Y Stadium Athletics Ramo Hal pi ng University of Southern Y Hall California F k Childs Way Cromwell Annenberg School Building ll Field House for Communication and Journalism Lorg Human T Lab USC Cromwell 5 Relations SGM 1017 Field yy Center A s X z Grace Ford Physical N Salvatori Hall 1 gt ros ety O Cw o Building P Hedco Associates Neurosciences Pari egier H 1 Building Pertusat a gt shn Pla erbi School A YWCA Bookst i ap ngineering Biegler Hall SS Building uat j wa fera l Olin Hall K Campus Center ann PTaza M 2 Hall Building Grand Ballroom E ui Q ar J P r M 2 2 Cahforn j Renald Archimedes Stonier Hell Student S n TY E m Tutor Hall Plaza Union l i wie epartmer E Mine HE Se o A 9 Mg X Science Center Hydrocarbon California2. Herklotz N m Electrica Research Institute Pizza Kitchen Courtyard Engineering Jes rtmen ence gt Department N y Stauffer Science Hu he te Lecture Hall i side by e ments N R7 Crocker g eo Lindhurst Wong Confesence asd d Galleries om di Plaza a a a a a a a Figure 5 Moving Circle Range Figure 6 Adjusting Size of Circle Filters For each of these queries you can apply the following filters to narrow down your results Date Just provide the duration of time for temporal search Then the resulting videos will be those taken during the given time period Text Textual keywords are assigned to videos when uploaded These keywords are assigned in two ways 1 manually by the user who uploads a video and 2 automatically by MediaQ immediately after a video arrives at the system based on the geospatial metadata of the video To search for videos pertaining to certain keywords enter the keywords and hit apply Direction MediaQ stores the direction where a camera is point at while recording a video The direction filter allows you to specify the camera direction of videos in your search To specify a camera direction choose Direction gt Compass Then point the compass in the desired direction MediaQ Crowdsourcing In the case when a user wants to collect user generated videos in an on demand manner MediaQ supports a spatial crowdsourcing mechanism called GeoCrowd which assigns g
3. MediaQ V2 0 User Manual Feb 2014 Viterbi School of Engineering MediaQ Table of Contents PINE TORU Gl Osis wc EE cee N 3 Mi igyslerero l piu M 4 Creatins an ACCOUNT sies od sd see EK N Ee Se EE 4 ido nn EE OE OE EE EE EE 4 Pronk PC grt IG EIE T 5 Following Videos within a Region 1eeeeeeeeeeeee einen enne nn nennen nnn KEER RR GER nnns anna ER EER REG RR EE 5 Change Password ME EE EE ER EE aaaeaii 6 Forgot PASS W Ord ese ene 6 Viewing MCI eed n ee dee ee Ge DR ee ES ee ee eg ORR EN Re Gegee 6 Ou ry TY DES sw sies EEEE ede REK es ve eN vis ae n ee ee We N 6 3p qe S 7 Pru ee 7 lr EE EE N EE 7 BP sed m 7 Gl gol akte gel o MNT RR ps ec EE OE ee 8 Buzciai M Task cmTE 8 BIS UADIT O ONUd 8 ADOUCUS M 10 KriOwi issues and NO CS PX 10 MediaQ Introduction MediaQ is a novel online media management system to collect organize share and search mobile multimedia contents using automatically tagged geospatial metadata User generated videos can be u
4. ch are mapped using the Google markers based on the starting locations of videos In order to display a result video simply click the marker then the video will be played out on a pop up player window Query Types MediaQ V2 0 provides three main types of queries for searching videos 1 Region Query The entire area you can see on the Google Maps interface in MediaQ web is an automatic query range Any videos which cover at least a portion of the query range will be automatically searched and marked on the map as results To move the region use the usual operations such as zoom in zoom out click hold move as one uses Google Maps 2 Range Query User can pinpoint a location on the map with a circular range Then the circular area is an automatic query range User can move the circle to a specific location by click and hold the center point of the circle User can also change the size of the circle Range displays all videos within the highlighted circular area The size and placement of the selected area can be adjusted To move the circle click hold and drag the circle at the point in the center Figure 5 To make the circle bigger or smaller grab one of the points on the outside edge of the circle and drag outwards or inwards Figure 6 3 Point Query User can pinpoint a specific location on the map Then any stored videos covering the location will be automatically searched and the resulting videos will be marked MediaQ
5. drop down menu and choose View Tasks This can be seen in Figure 7 above You can click on the Active Completed or Expired buttons to monitor your tasks Active button is a toggle switch displaying between the list of active tasks and all the tasks By hovering over a task you can view a summary of details or delete the task Clicking on the task will show more detailed information about the task such as who are assigned to the task and if the assigned users uploaded videos or not You can also visually check the uploaded videos on the map in the same way you see the videos in Viewing Media section MediaQ Active Completed Expired text test2 text test Take a video of the new Figure 8 Tasks Notes 1 When a task is issued and assignment is not done you cannot see any assigned users in the bottom of Figure 9 Task assignment may take time depending on workers reporting of interested regions With the same reason sometimes the desired number of users cannot be assigned due to smaller number of participants in the area 2 MediaQ server decides the task assignment considering concurrent multiple tasks and users so that a user may not receive any assignments even though tasks are assigned to the serviceable area of the user 3 Currently the maximum number of tasks that a user can receive is 3 MediaQ Take a video of the new fountain From 2014 02 27 at 03 39 27 to 2014 03 01 at 03 38 42 As the title says Luthera
6. eospatial tasks to multiple users who are willing to participate in the data collection Creating Tasks Creating a task allows a user i e requester to let other users i e workers know that he needs to collect media contents from a certain location The issued task will be assigned to only the users who already expressed their interests in the area see MediaQ Mobile App Manual To create a task click on the GeoCrowd drop down menu and choose Create Task Figure mediaQ Q search Create task Create a new task HiVideos Ga Pictures View Tasks H Display FOVs Coverage Map Satellite University vrle u i ii Village i TIRI 1 nn m W Jefferson nN 70n Anc Figure 7 Create Task Once you are on the Task page you can create a task at a location on the Google Map by double clicking on that location You can also adjust the location of the pin by clicking and dragging it to the desired location When creating a task you will be asked to enter detailed information about the task i e a task title task description expiration date reward amount and the number of users to whom the task should be assigned Viewing Tasks Once a task is issued it has its own status active the crowdsourcing task is currently going on completed the task is done expired the task passed the input expiration date and still not completed To view active completed or expired tasks that you have requested click on the GeoCrowd
7. n Church RE ML venter yj e fos p Qo Vay Map i ee T ma 77 S ey ly E 3y 3 9 7 N Fc o Public Safety b Parking W t Associates 3 St EE Structure a 934 67 Park Location where a video was recorded KO x Tommy VIET Sry x YWCA Trojan of Engineering JE Building US 1 gt ampus Center A ery Andrus AN Grand Ballroom G Ti ogy Ar Location where the task was issued y Plaza Jy ug 14 W 37th Pl Science amp M N 1100 gt gt Engineering California S O ih y Library Pizza Kitchen Q C 9 X Y M amp So X SA X lt E MA E 5 EE e 2 o py S Watt Hall lt 5 INGE IS 5 Ogasawara Map data 2014 Google TermsofUse Reportamap error Eg N User name who was assigned to the task pom test I 2014 02 27 06 12 36 Time when the video was recorded When time is shown it means that the task is done by this user Figure 9 An Example of Monitoring a Crowdsourcing Task About Us MediaQ is developed and maintained by the Integrated Media System Center IMSC at the University of Southern California Los Angeles California U S All rights reserved For more information or if you have any questions please contact imsc usc edu Known Issues and Notes 1 Currently MediaQ web service works best in full screen mode 2 Full screen video display is not working with the Chrome browser on Mac 10
8. ploaded to the MediaQ from users smartphones iPhone and Android and displayed accurately on a map interface according to their automatically sensed geospatial and other metadata MediaQ consists of MediaQ server and mobile app for a smartphone using iPhone or Android OS It allows video uploads from user s smartphone to be automatically geo tagged on a map while also adding its recorded real time and indicating the specific direction a camera was pointed So media contents can be exactly mapped on the map with accurate viewing direction of images Moreover if users are signed up to participate MediaQ allows a requester to send out requests for specific contents that will automatically ping participants near an interested location to alert them to get out their phones and start recording The MediaQ system provides the following distinct features 1 Individual frames of videos or any meaningful video segments are automatically annotated by objective metadata which capture four dimensions in the real world the capture time when the camera location and viewing direction where keywords what and people who We term this data W4 metadata which can be obtained by utilizing camera sensors geospatial and computer vision techniques 2 A new approach of collecting multimedia data from the participating users has been implemented using spatial crowdsourcing which allows media content to be collected in a coordinated manner for a specific
9. purpose 3 Flexible video search features are implemented using W4 metadata such as directional queries for selecting multimedia with a specific viewing direction MediaQ has been developed by the Integrate Media Systems Center at the University of Southern California at Los Angeles CA U S More details about the project can be found at mediaq usc edu MediaQ User Accounts Only registered users can use MediaQ Currently any user with a valid email address can register The account information can be used for both MediaQ web service and mobile app Creating an Account 1 Proceed to the Create Account page You can also go to the Homepage and click on Create Account 2 Enter the necessary information as seen in Figure 1 below and click Sign Up 3 Once signed up you can see the login screen Username Email Password Repeat Password Sign up Use existing account Figure 1 Creating Account Logging In Once you have created an account you can login on the Homepage by providing your username and password D im sis H n TA J ED pe 4 i al Me poral y Li Y met cu di P SR o o BE Me Username N lt E 1 Password remember me Log In Welcome to MediaQ Bringing s content to the VA Mc T NE EE NEER M P n Figure 2 Signing In MediaQ Note When a new user logs in to the MediaQ system for the first time a pop up window abou
10. t the web disclaimer info The user must agree on the disclaimer in order to use MediaQ Profile Information After successfully logged in a user can set personal information in the Profile page In order to edit user profile click on the Profile drop down and choose Profile Info Figure 3 media Q Search ari summer Edit Profile Profile Info ET S 14 3 n 1 i e EdVideos Ga Pictures Location 1 Display FOVs Coverage e Map Satellite jj vmversny tle arte Instit Village Pl lop ery 1200 Tog 00 E Ou F i Ite rs Wide 55 Subway University Village amp L About Food Court and Ca Universit y O P Computing y Restaurants o Change Password Y enter 2 selected S Hil Sign out JOWIIA S Figure 3 Profile Info Once you are on the profile page you can edit your profile information such as your name phone number following region etc In order to upload a photo click on the upload icon above your profile information You will be prompted to choose an image from your computer for your profile photo When you are finished click on Update Profile to save your information Following Videos within a Region With MediaQ it is possible to follow a specific region of interest i e region following Like following a specifc person on Twitter a user can set a specific geographical region and automatically monitor if any videos capture the region Once the region is set on the map in
11. terface the user will receive notifications when logging in to MediaQ about new videos posted in the preset region In order to set your following region go to your Profile Page as shown in Figure 3 Select your region by moving the green rectangle on the map to the desired area You can also set a time filter for your region For example you may only want to see recent videos from the past one week Then set the time filter by typing the number of days i e 7 in the time filter field and clicking on Update Profile The videos from the area you are currently following will be shown in a drop down on the top bar of your homepage 2014 2 20013 26 22 o Filters e pera Display FOVs Coverage Mao Figure 4 Following Videos MediaQ Change Password In order to change your password click on the Profile drop down and choose Change Password as seen in Figure 3 above You will then be promoted to enter your old password and your new password Forgot Password If you have forgotten your password do not worry On the Homepage click on forgot password by the login form seen in Figure 2 You will receive an email with a link to reset your password Please check your spam folder if you do not see an email from us in your inbox after some time Viewing Media The main feature of the MediaQ system is to search stored videos in flexible and effective ways Using Google Maps graphical user interface the resulting videos from a sear
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