Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
Collapse
Brand Logo

ModalAI Forum

  1. ModalAI Support Forum
  2. Flight Core and Legacy VOXL
  3. voxlcam stereo calibration issue

voxlcam stereo calibration issue

Scheduled Pinned Locked Moved Unsolved Flight Core and Legacy VOXL
voxl-cam
2 Posts 2 Posters 1.2k Views 1 Watching
  • 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.
  • S Offline
    S Offline
    serge
    Contributor
    wrote on last edited by
    #1

    we tryed to calibrate the he stereo cam of fresh received original voxlcam following your web, and we get calibration error, please check below:

    voxl:~$ voxl-calibrate-camera stereo -s 6x8 -l 0.0305
    Sampling overlapping images now
    Enter an empty line to take a sample or "stop" to finish sampling

    Taking Frame

    Taking Frame

    Taking Frame
    stop
    Stopping sampling
    Calibrating Left Camera
    Matrix
    [492.1770564681099, 0, 295.4825398094734;
    0, 492.8901026252761, 209.272634625896;
    0, 0, 1]
    Distortion
    [-0.1594579771759119;
    0.04962863321553145;
    -0.001253636483962171;
    -0.001198103506208682;
    0]
    distortion_model: plumb_bob
    Re-projection error reported by calibrateCamera: 0.397087
    Calibration Succeded!
    Calibrating Right Camera
    Matrix
    [494.8907451968516, 0, 316.5899881855318;
    0, 495.6589926401959, 253.4642768466877;
    0, 0, 1]
    Distortion
    [-0.1745222226485783;
    0.07184982910704507;
    -0.0007935469814187805;
    0.002257594081306318;
    0]
    distortion_model: plumb_bob
    Re-projection error reported by calibrateCamera: 0.416621
    Calibration Succeded!
    Calibrating Extrinsics
    3 frames will be processed
    R
    [-0.9974198548962341, -0.03078682869103906, 0.06485217219125451;
    0.03354128911161051, -0.9985619529928232, 0.04182114249862379;
    0.06347137136935731, 0.04388846333955487, 0.9970181481809569]
    T
    [0.001165923908125856;
    -0.01414810568973897;
    -0.008488033152070548]
    Re-projection error reported by stereoCalibrate: 79.097565
    Extrinsics Calibration Failed
    Max reprojection error: 0.5

    A 1 Reply Last reply
    0
    • S serge

      we tryed to calibrate the he stereo cam of fresh received original voxlcam following your web, and we get calibration error, please check below:

      voxl:~$ voxl-calibrate-camera stereo -s 6x8 -l 0.0305
      Sampling overlapping images now
      Enter an empty line to take a sample or "stop" to finish sampling

      Taking Frame

      Taking Frame

      Taking Frame
      stop
      Stopping sampling
      Calibrating Left Camera
      Matrix
      [492.1770564681099, 0, 295.4825398094734;
      0, 492.8901026252761, 209.272634625896;
      0, 0, 1]
      Distortion
      [-0.1594579771759119;
      0.04962863321553145;
      -0.001253636483962171;
      -0.001198103506208682;
      0]
      distortion_model: plumb_bob
      Re-projection error reported by calibrateCamera: 0.397087
      Calibration Succeded!
      Calibrating Right Camera
      Matrix
      [494.8907451968516, 0, 316.5899881855318;
      0, 495.6589926401959, 253.4642768466877;
      0, 0, 1]
      Distortion
      [-0.1745222226485783;
      0.07184982910704507;
      -0.0007935469814187805;
      0.002257594081306318;
      0]
      distortion_model: plumb_bob
      Re-projection error reported by calibrateCamera: 0.416621
      Calibration Succeded!
      Calibrating Extrinsics
      3 frames will be processed
      R
      [-0.9974198548962341, -0.03078682869103906, 0.06485217219125451;
      0.03354128911161051, -0.9985619529928232, 0.04182114249862379;
      0.06347137136935731, 0.04388846333955487, 0.9970181481809569]
      T
      [0.001165923908125856;
      -0.01414810568973897;
      -0.008488033152070548]
      Re-projection error reported by stereoCalibrate: 79.097565
      Extrinsics Calibration Failed
      Max reprojection error: 0.5

      A Offline
      A Offline
      afdrus
      Regular
      wrote on last edited by
      #2

      @serge I am also facing the same issue, did you solve it?

      1 Reply Last reply
      0

      Reading along? Create a free ModalAI Forum account to join in.

      With an account you can reply, ask your own question, get an email when a ModalAI engineer answers, and mark the reply that solved it. Your place in each thread is saved between visits.

      Questions about VOXL, Flight Core, ESCs and ModalAI drones are answered here by the engineers who build them.

      Register Login
      Reply
      • Reply as topic
      Log in to reply
      • Oldest to Newest
      • Newest to Oldest
      • Most Votes


      ModalAI
      Categories Recent Tags ModalAI.com Docs
      © 2026 ModalAI® · Accelerating autonomy for smaller, smarter, safer drones · Powered by NodeBB
      • Login

      • Don't have an account? Register

      • Login or register to search.
      • First post
        Last post
      0
      • Categories
      • Recent
      • Tags
      • Popular
      • Users
      • Groups