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  4. Calibrating Stereo Cameras on VOXL Flightcore is Super Finicky

Calibrating Stereo Cameras on VOXL Flightcore is Super Finicky

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  • John NomikosJ Offline
    John NomikosJ Offline
    John Nomikos
    Contributor
    wrote on last edited by John Nomikos
    #1

    Is the camera calibration supposed to be super finicky? I've been holding up a checkerboard for an hour and it's been pretty difficult getting the camera to detect it. The hardest part I've been stuck at is when the checkerboard needs to be tilted away from the camera. Any suggestions? It's super difficult getting the camera to detect it.

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    • Chad SweetC Offline
      Chad SweetC Offline
      Chad Sweet
      ModalAI Team
      wrote on last edited by
      #2

      Have you watched the tutorial here ? It helps show what the GUI is asking you to do

      John NomikosJ 1 Reply Last reply
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      • John NomikosJ Offline
        John NomikosJ Offline
        John Nomikos
        Contributor
        wrote on last edited by John Nomikos
        #3

        When I'm trying to set it up, it isn't tracking the squares the entire time and just flashes occasionally and the video feed is super laggy. Is there a way to fix that? Perhaps it's a lighting issue? Maybe the lag is because it's connected to the internet wirelessly?

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        • John NomikosJ Offline
          John NomikosJ Offline
          John Nomikos
          Contributor
          wrote on last edited by
          #4

          We connected it to ethernet and it's a bit faster, but still very laggy. Any suggestions?

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          • Chad SweetC Chad Sweet

            Have you watched the tutorial here ? It helps show what the GUI is asking you to do

            John NomikosJ Offline
            John NomikosJ Offline
            John Nomikos
            Contributor
            wrote on last edited by
            #5

            @Chad-Sweet Yeah connecting it to ethernet fixed it. Also the video helped a lot. Thank you very much!

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            • Dobry KolaczD Offline
              Dobry KolaczD Offline
              Dobry Kolacz
              ModalAI Team
              wrote on last edited by Dobry Kolacz
              #6

              You can also get a different idea of what the camera is seeing by adding a "-t" to the end of the code line. For example: "voxl-calibrate-camera stereo -t "
              This makes it easier to gauge if the lighting is good and can provide a different perspective which might make calibration easier.

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              • KrisK Offline
                KrisK Offline
                Kris
                Regular
                wrote on last edited by Kris
                #7

                I’m having the exact same problem, but I can’t connect to an Ethernet. Is there any other option for calibration? I’ve tried for 8 hours straight with no luck……

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