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WEBENCH® Tools/TDA3XEVM: Tda3x

chen
Intellectual 430 points

Part Number: TDA3XEVM

Tool/software: WEBENCH® Design Tools

Hi,Guys:

Can someone tell me how to set the "Anti-Aliasing" in tda3x because when we look at the videos,the edge looks like "Aliasing".

By the way,the video of ours is infrared,is there any thing we can do to make the picture better? Thanks!

Chen

  • 0
    TI__Guru 56317 points

    Chen,

    Can you provide an image or video showing the issue?

    Thanks,

    Kyle

  • 0 in reply to kcastille
    TI__Guru 56317 points
    Also, can you give a summary of the overall dataflow (input via VIN?, output to VOUT?) and processing?

    Thanks,
    KYle
  • 0 in reply to kcastille
    Intellectual 430 points

    HI,KYle:

    This is the dataflow in our porgram.

  • 0 in reply to kcastille
    Intellectual 430 points

    Hi,Kyle:

    please see below the vedio.The output of our vedio is 384*288 and the monitor is SP-17L CCTV LCD MONITOR.

    The edge of the video is fuzzy.So how to improve the quality?

    Another question is about Polyphase FIR.I check that in the path" C:\PROCESSOR_SDK_VISION_03_03_00_00\ti_components\drivers\pdk_01_09_00_17\packages\ti\drv\vps\src\vpslib\hal\src\vpshal_dssDispcPipeTda3xx.c" there is  a variable "gDispcCoefUpScale" looks like the coefficients for the Polyphase FIR.My question is how to set the value of the gDispcCoefUpScale  to get rid of the high frequency components of the image bacause I think maybe the fuzzy edge is caused by some high frequency noise?Thanks.

  • 0 in reply to chen
    TI__Guru**** 494695 points

    Hi Chen,

    Please look into the GRPx pipe line of display subsystem, it has anti-aliasing feature..

    Rgds,
    Brijesh