Hi, was trying to calibrate a stereo camera for simple stereo implementation. What would be a good limit for Euler angles relatively between the two cameras? Also, any inputs on what angles would not be acceptable. Thanks.
Most of the off-the-shelf stereo camera setups have the cameras in the same plane, so virtually no rotation between the two cameras, but this is not a requirement at all. Both cameras need to be able to see the things you care about, but how much rotation you can tolerate will depend on the objects you are viewing. If there are concavities / occlusions / etc, you might want to stick to smaller angles, but in some cases you might be able to tolerate 45 degrees of rotation or more. Also, rotation about the Z axis is a non-issue. One camera could be rotated 180 degrees (image upside down) and if the rig is calibrated properly everything would be fine. You might find it most convenient to mimic the single board stereo rigs because it is intuitive - both “eyes” are in the same plane with the primary translation in X, so it’s similar to human eyes. But the math still works when the cameras are arranged however you choose.