I got camera intrinsic matrix and distortion parameters using camera calibration.
The unit of the focal length is pixels, i guess.
Then, how can i calculate field of view (along y) ?
Is this formula right?
double fov_y = 2*atan(height/2/fy)*180/CV_PI;
I'll use it to parameters of
gluPerspective()
来源:https://stackoverflow.com/questions/39992968/how-to-calculate-field-of-view-of-the-camera-from-camera-intrinsic-matrix