Incorrect focal length by Camera Calibrator?
3 次查看(过去 30 天)
显示 更早的评论
Hello,
I noticed that Camera Calibrator gives focal lengths approximately twice as big as OpenCV. This affects calculation of the field of view. I think that Camera Calibrator's values are incorrect as field of view provided by camera manufacturer and rough estimates of FoV obtained by myself match the OpenCV values. Is the Camera Calibrator's meaning of focal length different from the standard one?
Thank you,
Yuri Rzhanov
0 个评论
回答(1 个)
Yash Sharma
2024-3-21
The discrepancy you are observing might be due the fact that OpenCV spatial coordinate system specifies the upper-left pixel center at (0,0), whereas the MATLAB spatial coordinate system specifies the pixel center at (1,1). You can use the "cameraIntrinsicsToOpenCV" function to convert MATLAB "cameraIntrinsics" or "cameraParameters" object, specified by intrinsics, to OpenCV camera intrinsic parameters.
Take a look at the following documentation which can help you further.
Hope it helps!
0 个评论
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!