I'm calibrating a camera of bird's eye view, as you know, the distortion is very heavy.
After I read this tutorial
calibrating undistorting with opencv in c
I try to use a chess board to some experiences.
could you tell the whether chess board method is suit for a camera of bird's eye view?
think you in advance
Hi, Simon!
Yes, you can try chessboard pattern to calibrate camera with bird's-eye view, but asymmetric circles grid pattern usually provides less average re-projection error. Look through the "Camera calibration With OpenCV" tutorial for more experience.
To achieve good results, pass
CV_CALIB_RATIONAL_MODEL
into flags combination in calibrateCamera() function and play with fixing or leaving free radial distortion coefficients (use appropriate flag combination). I had reliable results with fixed k5, k6 coefficients and leaved free principal point.
Asked: 2013-07-12 10:20:00 -0600
Seen: 2,594 times
Last updated: Jul 14 '13
