Camera calibration
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We want to use AprilTags to perform precise landings on our Starling 2, but from what we have read the cameras need to be calibrated to utilize this functionality. When running "voxl-calibrate-camera tracking_front" is says that we need to use the portal, but the portal is extremely unstable and crashes almost immediately. Therefore we are wondering if it is possible to calibrate the cameras without the portal?
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@kestrelsystemsbp , yes, alternate calibration methods are possible. Do you have a preferred method / software that you would like to use?
Also, which camera are you trying to calibrate and what resolution?
Alex
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@Alex-Kushleyev
We have not really tried any sort of camera calibration before so there are no preferred methods, but I suppose the easier the better.We want to calibrate the IMX412 mounted underneath the drone. I believe 4k is not necessary for AprilTag detection, so 1080p is sufficient.
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Thank for clarifying. Indeed the camera-calibration app does not work well for high resolution camera calibration because the processing is not optimized for the large image size (takes too long to process a frame).
The workaround for now is to use down-scaled image for calibration. I will follow up with instructions for the easiest way to do this.
Alex