1 | initial version |
Z = B*f / disparity
is the correct formula to get the depth in mm.
(B
is the baseline, the distance between the cams, and f
the focal length)
but to apply proper block matching, you have to calibrate your stereo rig (and undistort the images)
the resulting Camera matrix holds the value(s) for f
.
(there's a sample here, but in c++)