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Linux/TDA2EVM5777: calibration for 3D SV DEMO

Sung-IL
Mastermind 31540 points

Part Number: TDA2EVM5777
Other Parts Discussed in Thread: TDA2

Tool/software: Linux

Dear Champs,

I would like to check how Calibration can be run for 3D SV DEMO, and have 2 questions especially as below.

* 4 camera image capture should be done in the target board and it should be input to calibration tool on the PC, right?

  How 4 camera image capture should be done in target board?

* in the userguide, there should be 'TDA2x' directory on the SD/MMC card. where this directory should be created? is it on the root directory of root filesystem? or is it on the boot partition?

Thanks and Best Regards,

SI.

  • 0
    TI__Genius 12455 points
    Hi SI,

    Can i which version of SDK are you using? also any particular reason for manual calibration?

    Regards,
    Sujith
  • 0 in reply to Sujith
    TI__Mastermind 31540 points

    Oh..sorry. VisionSDK v3.2.

    BR,

    SI.

  • 0 in reply to Sung-IL
    TI__Genius 12455 points
    Hi SI,

    If you are using D3 Skateboard and chart, it best to perform automatic calibration.

    You will have to create a folder in mmc/sd root folder itself. i.e. the folder when you have MLO/uenv.txt

    Regards,
    Sujith
  • 0 in reply to Sujith
    TI__Mastermind 31540 points
    Thanks Sujith,

    Their HW is TDA2 EVM + Vision Kit + OV10635(x 4) camera.
    is it possible to perform automatic calibration in this case?
    There is no specific reason to run manual calibration. it is OK just to run 3D SV DEMO.

    For directory, do you mean to create TDA2x directory in the boot partition with MLO?
    They failed to run automatic calibration when they create TDA2x directory in the boot partition.



    Thanks and Best Regards,
    SI.
  • 0 in reply to Sung-IL
    TI__Genius 12455 points

    Hi SI,

    For auto-calibration, customer should use the chart provided and ensure cameras are mounted as described in VisionSDK_UserGuide_2D_SurroundView_Demo.pdf, section 2.3 Mounting Cameras

    The lens play a significant role, please determine the lens that's being used. For some of the fish-lenses the LENS.BIN is provided in the visionsdk. We could generate the LENS.BIN by following steps listed in "VisionSDK_UserGuide_3D_SurroundView_Manual_CalibTool.pdf"

    Various tables required for calibration is expected to be stored in mmc/sd card. Yes, you will require create a folder named "TDA2x". Below is a snap shot of my mmc/sd

    Regards,

    Sujith

  • 0 in reply to Sujith
    TI__Mastermind 31540 points

    Sujith,


    And for directory, should there 'uenv.txt'? I'm wondering why my customer's directory was not worked.

    my customer created the directory in the boot partition as you mentioned and the log is below.

    [HOST] [HOST ] 631.756877 s: CHAINS: --------------------------------------------------
    [HOST] [HOST ] 631.756877 s: CHAINS: TDA2X Folder not present in MMC/SD
    [HOST] [HOST ] 631.756908 s: CHAINS: Create TDA2X folder and copy the following files from
    [HOST] [HOST ] 631.756908 s: CHAINS: '/vision_sdk/tools/surround_vision_tools/Srv_LUTs':
    [HOST] [HOST ] 631.756908 s: CHAINS: 1. CHARTPOS.BIN
    [HOST] [HOST ] 631.756908 s: CHAINS: 2. LENS.BIN
    [HOST] [HOST ] 631.756908 s: CHAINS: 3. LENS_2D.BIN
    [HOST] [HOST ] 631.756938 s: CHAINS: --------------------------------------------------


    Thanks and Best Regards,
    SI.

  • 0 in reply to Sung-IL
    TI__Genius 12455 points
    Hi SI,

    Can you please check "VisionSDK_Linux_UserGuide.pdf" section 4.2

    Regards,
    Sujith
  • 0 in reply to Sujith
    TI__Mastermind 31540 points
    Hi Sujith,

    Thanks for your support.
    I found there was some difference in the file name and it works well after correcting file name.

    Thanks and Best Regards,
    SI.
  • 0 in reply to Sung-IL
    TI__Genius 12455 points

    Hi SI,

    Thanks for the confirmation. 

    Regards, Sujith