VQTS-100 User Manual, version 1.1
Contents
1. waveform diagrams noise spectrum diagram etc The multi page report can be printed on any standard printer installed in Windows Control Panel it is recommended to use pre installed PDF Factory printer to produce reports in PDF format For more details about the VOMA Analyzer operation and AVI files formats see VQMA User Manual 2008 by Videod Inc all rights reserved 9 VQTS 100 User Manual Operation Misc 1 The VQTS 100 software modules may be suspended from running at all by user intervention but these modules should be resumed for normal operation This may the case if 100 of Windows OS resources are required to run third party modules e g for set up or diagnostic operations Complete shut down of all VQTS software modules should be done with caution and by advanced users only 2 In case of serious problems with VQTS software setup for example if some executable files are missing or damaged the following warning message will appear on the screen for few seconds Test was not completed Check VQTS100 software setup A Same message will appear if copy protection USB dongle is missing which prevents the normal execution of VQMA program 3 Note that in case of CVBS input signal absence e g because of broken or disconnected video cable the VQTS 100 system can still proceed with the test The preview window will go black showing FAIL results thus such situations are easily diagnosed 4 If quick self d2. Calibrate Analog Video Out Video ar oo s a dB Ghromas a GEN TRETTRES EERS 0 00 dB F Adjust Cb and Gr Independently 0 00 dB a 0 00 dg Use Betacam YUY Levels Reset Gain 2008 by VideoQ Inc all rights reserved 15 VGTS 100 User Manual Specifications 6 Specifications e 4U case Weight 12 kg Dimensions D x W x H 522 mm x 430 mm x 176mm 20 5 x 16 9 x 6 9 Detachable handles for easy carrying installed Detachable rack mount ears supplied e PSU Redundant x2 400 Watt 115 230 V 50 60 Hz e Easy swap 2 x 80 mm rear fans and 1 x 120 mm front fan e PCI expansions slots x 3 e USB ports x 8 e Intel Pentium Dual Core 2 2 GHz e 2 GB RAM e 250 GB HDD e DL RW DVD Drive e Video output NTSC PAL CVBS 1 Vpp on 75 Ohm BNC x1 e Video input NTSC PAL CVBS 1 Vpp on 75 Ohm BNC x1 2008 by Videod Inc all rights reserved VQTS 100 User Manual Terms and Abbreviations 16 7 Terms and Abbreviations Term AVI C CVBS DVD MP2 MP4 NTSC PAL SNR UV YUV Explanation Audio Video Interleaved File Format Chrominance Chroma Video Signal Color Video Blanking and Sync Composite Video Signal Digital Versatile Disk Disk Format MPEG 2 Video Compression Format MPEG 4 Video Compression Format National Television Systems Committee also a TV Standard name Phase Alternate Lines TV Standard Signal to Noise Ratio Color Dif
3. I file simply rename a copy of the selected file MY_NTSC INI to VQNTSC INI overwriting the default file It is also advisable to keep a backup copies of the original files thus allowing to revert to the default values if necessary The process of replacement of the INI files can be automated by usage of conventional batch files or scripts For more details about the INI files see VQMA User Manual 2008 by VideoQ Inc all rights reserved VQTS 100 User Manual Configuration and Customization 12 Test Generator Hardware Configuration Test Generator hardware is supplied pre configured and its reconfiguration normally not needed However in the unlikely case of loss of the hardware control parameters they can be restored using the DeckLink Control Panel utility located in Start Menu Programs VideoQ VQTS folder The correct settings are shown on the following screenshots Blackmagic DeckLink 6 7 2 i x Preference settings for your Intensity Pro Settings Processing video Levels Set output g BGI eter Pe er a E Video type on output connections Set input NTSC PAL In amp Analog RCA Audio v For video and audio capture Use video setup in NTSC At 7 5 IRE for use in the USA f At 0 0 IRE for use in Japan Remove field jitter when video is paused J Select 41474 on video output F Use 3 Gb s SDI For Single Link 4 4 4 Set black ref on video output in capture When not playi
4. VOTS 100 Video Quality Test System Version 1 1 User Manual VA VQTS 100 Video Quality Test System by VideoQ Inc Complete self contained unit combining hardware and software tools Comprised of Test Signal Generator Module Video Capture Module and VQMA fully automated Software Video Analyzer to measure the quality of composite video signal Ideal tool for composite video link facilities and video development labs instantly revealing your video system performance VQTS 100 User Manual 2008 by VideoQ Inc all rights reserved All rights reserved No parts of this work may be reproduced in any form or by any means graphic electronic or mechanical including photocopying recording taping or information storage and retrieval systems without the written permission of the publisher Products that are referred to in this document may be either trademarks and or registered trademarks of the respective owners The publisher and the author make no claim to these trademarks While every precaution has been taken in the preparation of this document the publisher and the author assume no responsibility for errors or omissions or for damages resulting from the use of information contained in this document or from the use of programs and source code that may accompany it In no event shall the publisher and the author be liable for any loss of profit or any other commercial damage caused or alleged to have been caused d
5. allows automatically measure multiple video signal parameters Upper Band for visual estimation only ONIN mumnmmnnnmnmnnmnnnmnnn I NI m m mn nnnnnnnnnnmnnn Test Signal ANA an f a Parameters Colour Bars go gija Chroma Vectors TL Color Mank Chec o td Mi H R Freoency Response I llllllflll ll lUULLLUUUUULLLUUUlU Grey scale Nonlinearity Y Levels SESCOCERE OEE eee WWWWw www wnwnwnnnunn6eonn6nnnnnnnn6nnn6eosnn6nnnn6nnn6nng 2T pulse K rating 2T 20T pulses Y vs C Gain amp Delay SSCESCCE See ease mummwwpmwwbwuwwg SPSS PRS puupuu SPSS PRES SEES PEE EEE eee Modulated Ramp Differential Gain Differential Phase YUV2RGB conversion Detection Illegal Colors Noise amp Interferences accurately measured on any static image by analysis of frame differences The spinning wheel in the upper right part of the test pattern video image advances one dial division every second This provides useful visual hint indicating that the video link is not broken i e image is not frozen This component of the test pattern does not affect any video quality measurement procedures or measurements results 2008 by VideoQ Inc all rights reserved VQTS 100 User Manual Hardware and Software Installation 4 2 Hardware and Software Installation The VQTS 100 is a turn key system supplied complete with pre installed hardware and software modules No additional software installation is requi
6. automated measurement of the video signal performance e Short Test Report data appended to machine readable log file with time and date stamps e Off line Windows GUI Mode Analysis of captured video files with optional print out of detailed report e Customizable INI files allow editing of file locations and video quality tolerance values The following parameters are measured and or displayed e Black and White levels e Grey Scale pattern display e Differential Gain and Phase e Frequency Response on standard multi burst frequencies e K rating on 2T pulse e Y vs C Gain and Delay on 12 5 20T pulse e Chroma Vectors display Vectorscope with 2 5 zones e Weighted and Unweighted SNR for Y and UV e Noise Spectrum display 2008 by Videod Inc all rights reserved VQTS 100 User Manual Operation 4 Operation There are three major modes of VQTS 100 system operation e Preview e Automated Measurement e Off line Analysis The VQTS 100 system modules can be launched at any moment in any one of these three modes Moreover any two or even all three modes can be used in parallel e g automated measurement function with log file appended by the updated results can be performed whilst examining some AVI files created earlier VQTS 100 system desktop contains the following control icons P F4 W4 VQTS Test Generator restarts matrix test pattern video play out VQTS Input Preview enables the input
7. ference Video Signals U CB amp V CR Luminance Video Signal Digital Component 4 2 2 Multiplex also a File Format 2008 by VideoQ Inc all rights reserved VideoQ Inc
8. hin the user s premises The VQTS dongles will not work with the VQMA software executables purchased separately from VQTS 100 systems VQTS dongles installation on networked computer system LAN or WAN is not possible System is now ready for powering on Open the latched left front door and switch on power by momentarily pressing on power button Note that keeping this button pressed for few seconds initiate system shut down If VQTS 100 remote operation controls via network are required then please install enable and use ubiquitous software tools such as Microsoft Windows Remote Desktop or similar It is recommended to use only local controls and local hard drive folders it is desirable to limit network operations to copying archiving the resulting files after their creation 2008 by VideoQ Inc all rights reserved VQTS 100 User Manual Features and Parameters 6 3 Features and Parameters Main Features e Complete self contained Video Quality Test System to measure the objective quality of composite video signal e 4U case with hardware and software modules of a PC running Windows XP OS e Comprised of the following modules Test Signal Generator Video Capture Module VQMA Software Video Analyzer e Single click launches complete test procedure e Video data captured into AVI file container for expedient quality test e Optional AVI files archiving for further detailed analysis e Nearly instant few seconds
9. iagnostic health check is required just connect VQTS 100 CVBS output with CVBS input by short coaxial 75 Ohm cable and launch VQTS Auto Measurements process The preview window will display the VQMA test pattern and PASS test result should show 2008 by VideoQ Inc all rights reserved VQTS 100 User Manual Configuration and Customization 10 5 Configuration and Customization VQTS 100 INI Files Customizable INI files allow editing of file locations system parameters and the tolerance values used There are three INI files 1 VQOTS INI 2 VONTSC INI 3 VQPAL INI All three files are located in the VQTS folder together with all executables Configuration management of the whole VQTS 100 system is performed via direct editing of the VQTS INI file VQTS INI is a text file pointing to customizable folders and file locations It also contains file name of test pattern video played out by Test Generator NTSC PAL switch and some other parameters It is possible to change the location of captured video files video standard NTSC PAL location and name of the log file It is recommended to select only local hard drive folders network operations should be limited to copying archiving the resulting files after their creation VOQTS INI file can be edited using any text editor such as Notepad but this should be done with caution and by advanced users only Improper editing of this file may result in complete system failu
10. irectly or indirectly by this document Author Victor Steinberg Printed August 2008 in Santa Clara California USA Revision History Revision Date Description 1 1 2008 August 28 Release VQTS 100 User Manual Table of Contents 1 IiiTodiiction ahd OVderviecW 2 2 Hardware and Software Installation ssss seeex 4 3 Featuresand ParameGte rs 2 2 0c 6 L 0 0 091 0 0n aa 0000000000000 7 5 Configuration and Customization eeeeeeees 10 E EAE E eee E 15 7 Perms all Abbreviations eee 322A 16 2008 by VideoQ Inc all rights reserved VQTS 100 User Manual Introduction and Overview 2 1 Introduction and Overview VQTS 100 is an advanced Video Test System that consists of a calibrated test signal generator high precision video capture device and sophisticated video performance analyzer VQTS 100 is housed in the 4U case combining hardware and software modules of a PC running Windows XP OS This case can be rack mounted or used as a stand alone pedestal unit VQTS 100 is equipped with baseband analog NTSC PAL CVBS video output and baseband analog NTSC PAL CVBS video input This model does not support input and output formats other than CVBS These formats such as HDMI or component YPrPb are reserved for other VQTS family products VQTS 100 is suitable for testing both simple si
11. ng video send Last Played Frame v To all the video outputs Requires restarting your computer Set reference output timing 0 2008 by VideoQ Inc all rights reserved 13 VGTS 100 User Manual Configuration and Customization Blackmagic DeckLink 6 7 2 xj Preference settings for your Intensity Pro Settings Processing video Levels Select output processing z 75 E Output HD 23 98 pSF at HD 59 94i When playing back to video outputs Select input processing Off When capturing from video inputs Select A frame YITC reference Frame v In 23 98 fps capture From NTSC using 3 2 pulldown Capture YANC input line 18 Capture to movie file line 1 To video lines 1 2 or 3 in the captured movie file Set cooling fan speed P Low speed For quiet operation Set Level Meter Display 16 Channel Level Meter Medium 7 2008 by VideoQ Inc all rights reserved VQTS 100 User Manual Configuration and Customization 14 Video Levels tab parameters serve for DeckLink capture function which is not used by VQTS 100 system so the following screenshot is for information only B Blackmagic DeckLink 6 7 2 Preference settings for your Intensity Pro Settings Processing Video Levels Calibrate Analog Video In a rn ees es Chroma a ere oo s dB Adjust Gb and Cr Independently C O ee Laie ees Tea nm man mm n8 R c
12. ngle stage CVBS to CVBS links and complex multi stage CVBS video links which may include RF modems and or digital codecs It is a quite robust system allowing for significant distortions of the incoming signal such as wrong video levels wrong timing positions of the CVBS signal components or high levels of noise and or interferences 2008 by VideoQ Inc all rights reserved 3 VQTS 100 User Manual Introduction and Overview VQTS 100 automated measurement capabilities rely on advanced algorithms of built in VQMA software analyzer More details about VQMA Video Quality Measurement Software can be found in a separate VQMA User Manual If necessary the built in VOMA tool can be used for off line analysis of uncompressed video files containing proprietary VOMA matrix test pattern These AVI file are created automatically by VOTS system itself or they can be imported from the outside e g received via LAN WAN FTP transfer from another VQTS system or even from third party video capture system hardware or software processor VQTS 100 system relies on the unique VQMA Test Matrix Pattern This test signal is permanently present on VQTS 100 CVBS video output which should feed the device or system under the test For this purpose the corresponding video file is permanently played out by built in hardware module The output of the device or system under the test should be routed to the VQTS 100 CVBS video input All In One Single pattern
13. re it is advisable to keep a backup copy of the original file VQONTSC INI and VQPAL INI files contain all tolerance target values used by VQMA analyzer to do quality check decisions i e raising the pass fail flags for particular video parameters VQMA automatically detects NTSC or PAL AVI video file and selects the appropriate INI file The INI files must be present in the program folder they are editable so the users can input their customized tolerance values for any parameter If these INI files are not found in the program folder then they are created automatically by VQMA EXE with the default tolerance values VQNTSC INI and VQPAL INI file names are reserved and cannot be modified The content of the INI files can be edited using any text editor like Notepad to apply the tolerance values more appropriate for the particular device or system under test It should be done with caution because the list of parameters and units of measurement codes should not be modified 2008 by Videod Inc all rights reserved 11 VQTS 100 User Manual Configuration and Customization Only actual numerical values e g frequency response drop for some particular frequency can be amended For example the MIN tolerance for 3 MHz burst can be changed from 1 dB default to 3 dB It is recommended to store customized INI files under the names which are different from the reserved ones e g MY_NTSC INI To use these customized IN
14. red for normal VQTS 100 system operation Install the VQTS 100 either stand alone or on the 19 rack shelf Installation of additional hardware or software modules others than supplied explicitly by VideoQ is permitted but VideoQ will not take any responsibility for possible hardware software failures or conflicts as a result of thereof thus potentially inhibiting normal VQTS 100 system operation Not Spare 3 used PCI slots Redundant Standard VGA DVI CVBS Not v4 CVBS PSU PCO Display Input used Output Connect both power feeds recommended or single feed acceptable but hot back up will be not available Connect all standard PC I O devices display keyboard mouse If necessary connect network cable optional 2008 by VideoQ Inc all rights reserved 5 VQTS 100 User Manual Hardware and Software Installation Install VQTS 100 copy protection dongle into any available USB slot VQMA is a copy protected program using uniquely encrypted USB dongle matched with the copy of your executable as installed This dongle must be inserted into USB port of the VQTS PC where VQMA is installed whenever the VQMA EXE is running In case of loss or damage of this USB dongle VideoQ reserve the right to revoke the license Please note that when the dongle is not connected the protected application will stop running If you purchased several VQTS 100 systems the dongles and VQTS 100 cases are mutually interchangeable wit
15. video monitor window VQTS Auto Measurement starts the complete test procedure in the background VQMA Off Line Analyzer launches the off line detailed analysis tool VQTS Log Viewer opens the VQTS Log txt file in the text viewer editor VOTS Test Generator Normally Test Generator starts automatically on a system power up It is highly recommended to keep Test Generator running permanently in a loop mode thus providing uninterrupted video output Note that the hardware play out module continues to output last frozen video frame even after shut down of the Test Generator software module but the spinning wheel in the upper right part of the test pattern video image will not move VOQOTS Preview Window Preview mode is especially useful for checking the CVBS input signal presence and rough CVBS input quality estimation e g during video link set up or maintenance works Input Preview and Automated Measurements modes presume the presence of test pattern signal on the VQTS 100 system CVBS output which is normally the case If by any reason the video play out module Test Generator is not running then please re launch it 2008 by VideoQ Inc all rights reserved VQTS 100 User Manual Operation 8 VOTS Auto Measurement Launch automated test by clicking on VQTS Auto Measurement icon The Preview Window showing input signal should appear for few seconds Results of the automated test are available in approximatel
16. y 5 seconds The result summary PASS or FAIL will be shown for few seconds in a splash box message Test completed Test completed Test result PASS Test result FAIL Y x At the same time full list of the current measurement results will be created and automatically appended to the machine readable VQTS Log txt file PASS or FAIL here means that the signal quality does or does not match all target tolerances specified in VQNTSC INI or VQPAL INI file Mismatch of just one parameter e g white level results in FAIL result For more details about usage and editing of INI files see separate VQMA User Manual PASS or FAIL message appears on screen only if the full sequence of test procedures was successfully accomplished In some cases VQTS system can not complete the test procedure for example if input signal is very unstable or any one of video cables is disconnected In such case the corresponding warning text message with date ant time stamp is automatically appended to the log file In this case it makes sense to re check the system set up using Preview Window until you see normal dynamic pattern with moving spinning wheel VQMA Off line Analyzer VQMA icon serves for off line analysis of AVI files captured earlier so for this off line mode the Generator status and input signal presence do not matter In this mode it is possible to view more details about particular test records and produce detailed report documents with
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