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How many imaging sensor can I connect to AM3874?

mans
Expert 1005 points
Other Parts Discussed in Thread: AM3874

I want to connect several Aptina MT9J003 to an AM3874 processor. My questions are as follow: I want to take still images (no video on full res)

1- How many can I connect?

2- Is there any image processor on these boards that help me to do debayering (bayer filtering)?

3- If I capture the images using an FPGA, and bring them to processor memory, can I use on board image processor to do debayering/blending and so on?

4- Can I use 3D graphic processor to do these type of tasks?

 

 

  • 0
    Guru 31670 points

    Mans,

    1. If you are not capturing data simultaneously from all the sensors, then you can connect two Aptina sensors to ISS subsystem.

    2. You can also connect two or three of them to HDVPSS as well, but HDVPSS doesn't support Bayer. ISS supports Bayer format.

    3. You can use ISS for debayering, HDVPSS for blending etc.

    4. I am not sure SGX 3D GPU is the right module for doing all these efficiently. 

  • 0 in reply to Renjith Thomas
    TI__Guru**** 480505 points

    Hi,

     

    We could capture RAW data using hdvpss by treating it as YUV422 RGB565, but as you rightly said, there is no module in HDVPSS for doing debayering. You could use ISP in Mem2Mem mode and convert bayer to RGB for multiple streams, but fps will be limited,

     

    Regards,

    Brijesh Jadav

  • 0 in reply to Brijesh Jadav
    Expert 1005 points

    I need to connect at least 4 sensor to this processor. Currently I am usng an FPGA for capturing frames and then processing by AM3874. The problem that I have is that debayering and wb and ... takes a long time as all of them are done in Linux code and I am not using media controller on this cheap for this. Can you please lead me to documentation on how I can use media processor on this chip to do debayring wb, JPEG compression and so on when the image is captured by other devices and it is available in memory?

    Please note that I am using Linux (EZSDK). Where can  get the libraries and how can I compile them for Linux and us them on system?

     

  • 0 in reply to mans
    TI__Guru**** 480505 points

    Hi Mans,

     

    Please contact your Local TI FAE for more information about ISS.

     

    Regards,

    Brijesh Jadav