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    Seldom artefacts with veye-mipi-imx462

    Scheduled Pinned Locked Moved VEYE MIPI camera
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    • M Offline
      milank
      last edited by

      Hello,

      I am testing the camera for astronomical application.
      The gstreamer pipeline is:
      v4l2src io-mode=dmabuf device=/dev/video0 ! video/x-raw,format=UYVY,width=1920,height=1080,framerate=25/1 ! v4l2convert capture-io-mode=dmabuf output-io-mode=dmabuf ! videoscale ! video/x-raw,width=1280,height=720 ! appsink sync=1

      Ocassionaly, I get artefacts like the picture below. Any idea how to get rid of this?
      alt text
      (the green bar in the middle)

      Milan

      veye_xummV 1 Reply Last reply Reply Quote 0
      • veye_xummV Offline
        veye_xumm @milank
        last edited by

        @milank
        Are you using it on a Raspberry Pi? Can you tell me about the software and hardware configuration of your board?

        Questions will be answered as soon as possible, please be patient.
        如果你使用中文，请直接用中文提问。
        May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

        M 1 Reply Last reply Reply Quote 0
        • M Offline
          milank @veye_xumm
          last edited by

          @veye_xumm
          Yes, it is Pi4 4GB RAM

          $ uname -a
          Linux raspberrypi 5.15.32-v7l+ #1537 SMP Wed Mar 30 17:15:45 BST 2022 armv7l GNU/Linux

          $ ./veye_mipi_i2c.sh -r -f hdver
          hardware version is 0x 5
          release date is 2020- 8-14

          $ modinfo veyecam2m
          filename: /lib/modules/5.15.32-v7l+/kernel/drivers/media/i2c/veyecam2m.ko
          license: GPL v2
          description: veyecam2m sensor v4l2 driver
          author: xumm <www.veye.cc>
          srcversion: 39B6CA03CC15515713EC3FC
          alias: of:NTCveye,veyecam2mC*
          alias: of:NTCveye,veyecam2m
          depends: v4l2-async,videodev,v4l2-fwnode,mc
          intree: Y
          name: veyecam2m
          vermagic: 5.15.32-v7l SMP mod_unload modversions ARMv7 p2v8

          The capture code is taken from veye driver examples.

          Milan

          veye_xummV 1 Reply Last reply Reply Quote 0
          • veye_xummV Offline
            veye_xumm @milank
            last edited by

            @milank I suspect that the FFC cable is not connected well enough. You could try replacing the FFC cable with a new one, or re-plugging it.

            Questions will be answered as soon as possible, please be patient.
            如果你使用中文，请直接用中文提问。
            May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

            M 1 Reply Last reply Reply Quote 0
            • M Offline
              milank @veye_xumm
              last edited by

              @veye_xumm

              Thank you.
              I reseated, no success.
              I bought a new FFC cable, and sadly, the issue persists.

              Milan

              veye_xummV 1 Reply Last reply Reply Quote 0
              • veye_xummV Offline
                veye_xumm @milank
                last edited by

                @milank
                Hi, I can't judge remotely on this issue right now. Where did you order the camera ? Please private message me with the order number and I can arrange to get you a replacement.

                Questions will be answered as soon as possible, please be patient.
                如果你使用中文，请直接用中文提问。
                May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                M 1 Reply Last reply Reply Quote 0
                • M Offline
                  milank @veye_xumm
                  last edited by

                  @veye_xumm
                  I have happened to turn-off the wifi and switch to ethernet, just to see if there is any effect. To my surprise, camera is now providing a picture without these artefacts.
                  No idea if this is just a HW conflict or RF interference on the FFC cable.

                  Milan

                  veye_xummV 1 Reply Last reply Reply Quote 0
                  • veye_xummV Offline
                    veye_xumm @milank
                    last edited by

                    @milank
                    I think it was RF interference on the FFC cable.

                    Questions will be answered as soon as possible, please be patient.
                    如果你使用中文，请直接用中文提问。
                    May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                    1 Reply Last reply Reply Quote 0

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