Hi,
I want to calculate the camera pose correspond with the chessboard. Currently, I use 3 markers at Top Left, Top Right and Bottom Left of the chessboard. I use these markers to estimate the 3D world coordinate of the chessboard corners. The 2D chessboard corners is detected by openCV findChessboardCorners function.
I tested solvePnPRansac with different algorithm SOLVEPNP_ITERATIVE, SOLVEPNP_DLS, SOLVEPNP_EPNP, SOLVEPNP_UPNP and SOLVEPNP_P3P but always got unstable results.
I also followed this article to initial the rvec and tvec but the result didn't improve. https://github.com/opencv/opencv_contrib/issues/942
Do you have any idea to improve the situation?
Here the current unstable result: https://youtu.be/k0D9IMQfkRU
Thank you in advance.