Calibration verification

[imrasp]

• [ ] Do we have to do it?
• [ ] How?

Check FOV from real-world object e.g ruler

[imrasp]

REF : https://stackoverflow.com/questions/18052337/how-to-verify-that-the-camera-calibration-is-correct-or-how-to-estimate-the-er

• [ ] what is the focal length unit pixel/cm/m/mm

[imrasp]

https://www.mathworks.com/help/vision/ug/single-camera-calibrator-app.html#bt19jdq-1 https://physics.stackexchange.com/questions/273464/what-is-the-tangential-distortion-of-opencv-actually-tangential-to