CAA allows a single repository for a flow test video?

R & D control devices of video "decoder" I want to start internal treatment of our TESTED device, then using a PXI-1491 to analyze video output digital (HDMI) of the object to be measured for a large number of seconds (180 seconds or more for example).

The video that is being analyzed will have content static image. The amount of time I want to analyze the test data flow after doing some stuff on the object to be measured is variable, but I always expect it to be quite long.

Currently, it seems that I have a stream of reference containing exactly the same number of images that flow of test data.

This makes the reference vbf very large files. My test needs include a large number of resolutions that must be tested through the object to measure. With an extensive library of vbf very large files is logistically difficult, it would be much easier to maintain such a library made up of records of reference unique framework "Golden" instead.  Also, since my analyze the needs of variable time depending on the test configuration and USE treatment options, it would be better for me to have a single reference or frame and validating a large number of images of test against it.

Given that the analyzed video will have static images, it is possible to run a video stream test against a framework unique (reduced reference) instead of having a complete reference stream frame by frame?

Do exactly what you ask is not the design of the CAA.  Of course, the best solution that we recommend when working with video test is a high-capacity hard drive, probably in a RAID configuration for more space and better performance, then just take a reference however with 10 k images and do what you originally suggested.

A method to achieve what you are looking for without using a big reference file is, thanks to the treatment in offline mode.  Allows you to acquire 10,000 consecutive images, what I understand is one of your concerns, and then afterwards run it through the parser.  You'd still be a type of action loop TestStand and LabVIEW.  The process would be:

(1) acquire your your provider source 1491 with none of the processors and registration of the media stream to the disk.

Loop:

(2) loading CAA with the provider buffer of disk instead of the 1491, the buffer to the disk file will be the acquisition by the top

(3) point the boot image to your current location.

(4) perform your processor with the results.

(5) repeat and iterate to a new location of boot image

This process will be much slower that you load and unload resources every time.  If you choose to go in that direction, a better implementation would be to perhaps consider a 100 images at once, or a number greater than 1, because the processing time for handling additional images will be less loading and unloading PQA.

Your second option will require more work outside the AQP to implement custom through a personalized user processor features.  Actually allows you to find a way to treat the incoming data in ways you would like.  To do this, you will need:

(1) LabVIEW 2011 - personalized by the user for CAA treatment cannot be developed in LabVIEW 2011.  If you are under contract of SSP by OR and not only 2012 LabVIEW for the moment, you still have access to older versions.

(2) vision Development Module - for your image processing

(3) a video source unencrypted - due to the limitations of the HDCP, we cannot expose the treatment of the user of raw video stream.

You would in this user processor:

(1) load as your static frame in directly, you wouldn't need to use media Ref input

Loop

(2) load the current image of the incoming video table

(3) measure your video with the Vision, probably PNSR or SSIM function since they are currently measures only 2 referenced in CAA.

Learn more about Custom User Proessor had, in the CAA to help discover: NI CAA Executive and Board Configuration OR PQA > NI PQA tabs > tab processors > customizable output processors > processor as user: http://digital.ni.com/public.nsf/allkb/514058CC830D86EE86257881004CB45F

Tags: NI Products

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