Thank you for your reply.
Yes I know the difference.
I will try to better explain my problem.
I have 2 stereo cameras. Let’s call them A and B.
A is a stereo camera with baseline 12.5 cm.
B is a stereo camera with baseline 2 mm.
I know that the dept is proportional to the disparity so I know that the dept estimation for the stereo camera B will be by definition less accurate than the dept estimation with the stereo camera A because of the shorter baseline.
However, my question is: is there any trick that can be useful to better estimate the dept in the case of the stereo camera B that has a so small baseline?