I have performed single camera calibration using openCV library before performing stereo calibration and,
results of single camera calibration are:
focal length of camera 1 is: fx=1.2462718254982949e+003, fy=1.2462718254982949e+003 , with avg reprojection error=3.3547184378077333e-001
focal length of camera 2 is:fx= 1.6148973771889357e+003, fy=1.6148973771889357e+003 with avg reprojection error=3.4419465826561280e-001
Is this difference is permissible for a stereo camera and With these focal lengths can i get a good depth estimation after stereo calibration and rectification?