Hello,
I was trying to implement a different function to undistort points (to test potential new distortion models) and I came across the implementation that OpenCV has (https://github.com/opencv/opencv/blob/master/modules/imgproc/src/undistort.cpp lines 426-582). There, in the for loop (lines 528-536) it actually computes the undistorted point. Can somebody tell me how does it solve the equation system I have tried to identify it to some iterative solutions (least squares, Newton-Rapson...) and I don't see how it does it.
Thank you very much!