Picture Quality Analysis Software V3.5

Picture Quality Analysis Software based on the concepts of the human vision system which provides a suite of repeatable, objective quality measurements that closely correspond with subjective human visual assessment.

PQA v3.5 can be installed as a new installation or to update an existing installation of PQA500, PQA600 and PQASW. It can also be used for evaluations in demo mode.

If your evaluation involves processing of files other than the ones provided with this package, you will need a demo license dongle. Please contact your Tektronix representative to attain a demo dongle.

Version: V3.5
Software Type: Application

Release Date: Apr 04 2011 - 07:00 am
Part Number: 063428501

Release Notes

Instructions

Release Notes

PQA Picture Quality Analyzer

Release Notes

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Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this
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Contacting Tektronix
Tektronix, Inc. 14150 SW Karl Braun Drive
P.O. Box 500 Beaverton, OR 97077 USA

For product information, sales, service, and technical support: In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to find contacts in your area. 
Release Notes

This document supports software version 3.5 of the Picture Quality Analyzer.

About Invoking the Application on PQA600/Windows 7
--------------------------------------------------

When you invoke the application on PQA600 or a PC with Windows 7 and if UAC is enabled, it will display a User Account Control dialog box that asks
"Do you want to allow the following program from an unknown publisher to make changes to this computer?" The Program name is
displayed as PQUI.exe. Answer Yes to the dialogbox.
This dialog box is a feature of Windows7 and is a normal response by the operating system.

Clicking No to this dialog may result in the application being unable to save results/custom measures on the machine.

To change UAC prompt settings, go to Control Panel -> System and Security -> Action Center -> Change User Account Control Settings.
After changing the UAC setting, restart the system for the updated setting to take effect.

Known Issues and Behaviors
--------------------------

Port specific IP capture doesn't work for multicast streams. As a workaround, use "inspect all" option and select a stream.

The maximum file size that can be captured using IP capture mode is 200MB. If PQA is left in recording mode for an input stream exceeding this data limit,
latest 200MB will be recorded to file when user presses Stop button.

The Contrast and Brightness settings in the Display Settings dialog box (Configure > Display Settings) might not operate
correctly in the Overlay View.

When reviewing the results of display measures calculated using different frame rates, original
images are displayed rather than up-sampled interpolations. This can intentionally cause the results map to appear temporally
advanced, or delayed by up to half a frame when compared to the lower frame rate sequence.

In the Overlay View, video sequences with different resolutions are not spatially aligned.

The Standalone Attention Model uses the Reference sequence for dual-ended measurements and the Test sequence for single-ended measurements.

If the reference and test sequences have different resolutions and the measurement contains the Artifact Detection node but does not contain
the View Model node, the system might become unstable. To avoid this situation, Tektronix suggests that when a measurement includes the
Artifact Detection node, you ensure that the measurement also includes the View Model node whenever the reference and test sequences have
different resolutions.

The vertical and horizontal resolution for .rgb and .yuv files must be multiples of 4.

If the reference or test file has a "," (comma) character in its file name, the system might become unstable when the measurement result
is recalled in review mode. To avoid this, do not use commas in file names.

When two SDI channels are selected for generation, sometimes the output frames might be misaligned by one frame between the two channels
due to a system architectural limitation. If this occurs, restart the generation to realign the two channels.

About Spatial and Temporal Alignment
------------------------------------

Automatic spatial and temporal alignment work by calculating the correlation between the reference video sequence and the test video sequence.
Video that is still, contains little movement, or consists of simple contents (such as a color bar test pattern signal), can be difficult to
align automatically. If you receive a warning when you attempt an automatic temporal or spatial alignment, try the automatic alignment again
starting with another frame that contains more complex contents and movement. You can change the starting frame by changing the From frame
setting onthe Temporal Sync tab.

Auto temporal alignment only finds one offset for a pair of sequences. If the test sequence contains frozen or skipped frames, the automatic
temporal alignment algorithm will not be able to realign the sequences. Auto alignment can not be selected for Luma Gain and Offset Brightness
on the Spatial Alignment tab. However, you can manually set the Luma Gain and Offset Brightness on the Spatial Alignment tab and those settings
will be used by the selected measurement. If you want the PQA to align the video sequences for luma automatically, you must select Auto
for Luma Gain and Offset Brightnessin the View Model configuration node.

About Simultaneous Generation and Capture Operation
---------------------------------------------------

The HD-SDI simultaneous generation and capture capability consumes substantial CPU resources and requires sustained high-speed hard disk
activity. To avoid missing frames while capturing video or frozen frames while generating video, avoid running other applications when
using the simultaneous generation and capture capability.

About the Logical Hard Disk Drive Setting
-----------------------------------------

The PQA600 has three virtual drives: C, E, and F. Drives E and F are optimized for performance. Data can be stored on any of the drives.
All drives are configured as RAID 0 (including the C drive). No drive provides data redundancy, therefore, for recovery purposes, the user
should back up all data residing on the PQA600.

End of Document

Instructions

PQA Software Application Installation Instructions:

1. Insert PQA application software CD.

2. Double-click "setup.exe" to begin the installation process.

3. You should now see the PQA installer splash screen.

4. Click "Next" on the splash screen.

5. Click "Next" on the "Welcome to the PQA Setup Wizard" screen that follows.

6. Leave everything in their default state and click "Next" on the "Select Installation Folder" screen.

7. Select "I Agree" and then click "Next" on the "License Agreement" screen.

8. Click "Next" on the "Confirm Installation" screen.

9. You should briefly see an "Installing PQA" screen with a progress bar on it.

10. Click "Next" on "DK2 DESkey Drivers"

11. Select "This machine" and click "Next" on "Setup Type"

12. If "Windows Security" shows up, click "Install".

13. When the installation of DK2 driver has completed you should see and "Setup Complete" screen. Click "Finish"

14. Click "OK" on "WinPcap Setup".

15. Click "Next" on "WinPcap Installer".

16. Click "Next" on "Setup Wizard".

17. Click "I Agree" on "License Agreement"

18. Click "Install" on "Installation options".

19. When the WinPcap installation has completed you should see an "Completing the WinPcap Setup Wizad" screen. Click "Finish".

20. When the installation has completed you should see an "Installation Complete" screen. Click "Close" to end the installation process.

21. Double-click the "Tektronix PQA" icon that should now be on the desktop to bring up the PQA software.

22. Make sure that no error messages are displayed and that the tool comes up successfully.

23. Close the PQA program.

24. Done.

By downloading, you agree to the terms and conditions of the Software Download Agreement.

This software applies to: PQA500