ModalAI Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Register
    • Login

    Clarification regarding locally saving images from Hi-Res camera

    VOXL-CAM
    3
    11
    655
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • David SmythD
      David Smyth
      last edited by David Smyth

      Apologies, I also forgot to add the following:

      • Follow the approach here https://forum.modalai.com/topic/648/video-recording-from-a-4k-camera-to-a-sd-card/11?_=1648213849768 and use the of voxl-streamer here: https://gitlab.com/voxl-public/voxl-sdk/services/apq8096-camera-server/-/tree/streaming-plus-capturing-hires. There still seem to be a couple of bugs here.
      Eric KatzfeyE 1 Reply Last reply Reply Quote 0
      • Eric KatzfeyE
        Eric Katzfey ModalAI Team @David Smyth
        last edited by

        @David-Smyth Yes, that is the best way forward. But it really only works in 1080p right now. As you can tell there are still a few bugs to be worked out. That will get you a recording of video, but not individual snapshots. And the video will be h264 / h265 compressed, not raw NV21 frames. 4k and 720p do not work well right now. We are trying to fix all of these issues and add a snapshot capability but that won't be available until we can complete the work.

        David SmythD 1 Reply Last reply Reply Quote 0
        • David SmythD
          David Smyth @Eric Katzfey
          last edited by

          @Eric-Katzfey That's great, thanks for the info. I'm still getting to grips with how everything works, looking forward to having this functionality up and running 😁

          1 Reply Last reply Reply Quote 0
          • David SmythD
            David Smyth
            last edited by

            I now have a 1080p h265 video which is great, but the focal plane seems to be about a foot in front of the camera. I've seen in other forum posts that I need to twist some black plastic around the lens to focus it. Would it be possible to provide a diagram/video showing how to do this without damaging the camera? There's not much space for a pliers! I've attached a screenshot of a page around 1ft from the camera for reference ! vlcsnap-2022-03-31-17h21m12s560-min.png

            David SmythD 1 Reply Last reply Reply Quote 0
            • David SmythD
              David Smyth @David Smyth
              last edited by

              @Eric-Katzfey sorry meant to tag you.

              Eric KatzfeyE 1 Reply Last reply Reply Quote 0
              • Eric KatzfeyE
                Eric Katzfey ModalAI Team @David Smyth
                last edited by

                @David-Smyth Can you post a picture of the camera you want to refocus? I'll ask around the office to see who knows how to refocus it properly without damaging anything.

                David SmythD 1 Reply Last reply Reply Quote 0
                • David SmythD
                  David Smyth @Eric Katzfey
                  last edited by David Smyth

                  @Eric-Katzfey sure thing, it's the hi-res on the voxl m500 (circled in blue).
                  277836242_1126790018157171_6339154366612428922_n(1)(1).jpg

                  Eric KatzfeyE 1 Reply Last reply Reply Quote 0
                  • Eric KatzfeyE
                    Eric Katzfey ModalAI Team @David Smyth
                    last edited by Eric Katzfey

                    @David-Smyth Here's some advice from one of our technicians: "He has to use thin needle nose pliers or tweezers to get access to the notches on the hires camera. Extreme caution is needed here. It's very simple for the pliers to slip & scratch the lens. Turn counter-clock-wise bit by bit to focus. To be cautious, I would really recommend taking off the top bar off, take the two front screws off the hires camera, take out the hires form the flight deck, use pliers from the side to initially break the seal and focus it, then place back reassembled"

                    1 Reply Last reply Reply Quote 0
                    • Adrian HidalgoA
                      Adrian Hidalgo ModalAI Team
                      last edited by

                      @David-Smyth, I can help out. If you want to attempt at adjusting the hires without taking it out, use either thin needle nose pliers or paddle tweezers to grab the notches & turn counterclockwise. Will have some resistance, that's normal. Arrows in the pic show the flat spots to grab. See image below:
                      IMG_1378.jpg
                      Be cautious using this method as the pliers slip really easily and scratch the lens.

                      Other method would be to take out the hires from the flight deck adjust and place back in. Minimum risk to scratching the lens.
                      First take out both Philips head screws on the side retaining the top bar. There are two on either side. See pic below:
                      IMG_1380.jpg
                      Take out the bar.
                      IMG_1379.jpg
                      Then push out quantity two M1.6 screw holding the hires in
                      IMG_1381.jpg
                      Slide the hires out. It'll still be attached to the Voxl-Flight(should have enough slack to slide out from its recess
                      Use pliers to grab notches and twist counterclockwise.
                      IMG_1382.JPG
                      IMG_1383.JPG
                      Hope that helps clarify things. Feel free to reach out if you have any more questions!
                      Adrian

                      David SmythD 1 Reply Last reply Reply Quote 0
                      • David SmythD
                        David Smyth @Adrian Hidalgo
                        last edited by

                        @Adrian-Hidalgo @Eric-Katzfey Thanks for the reply, much appreciated. I'll give that a go.

                        1 Reply Last reply Reply Quote 0
                        • First post
                          Last post
                        Powered by NodeBB | Contributors