How do you measure the accuracy of a stereo system?

1. How accurate is stereo vision?
2. What will be the effect of too large baseline in stereo vision?

How accurate is stereo vision?

The accuracy of disparity calculations are very dependent on what the camera is being pointed at, but it is generally 1 - 2mm at up to approximately 2 metres.

What will be the effect of too large baseline in stereo vision?

While a larger baseline stereo camera can detect objects farther away, it also makes it more difficult to match points correctly, which lowers the accuracy of depth results.