1 | initial version |
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.
2 | fixed link to calibrateCamera |
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.