I set up a stereo-vision system to triangulate 3D point given two 2D points from 2 views (corresponding to the same point.) I have some questions on the interpretability of the results.

So the size of my calibration squares are '25mm' a side, and after triangulating and normalizing the homogeneous coordinates (dividing the array of points by the fourth coordinate), I multiply all of them by 25mm and divide by 10 (to get in cm) to get the actual distance from the camera set up.

For eg - the final coordinates that I got were something like ([-13.29, -5.94, 68.41]) So how do I interpret this? 68.41 is the distance in the z direction, and -5.94 is the position in the y and -13.29 is the position in the x. But what is the origin here? By convention is it the left camera? Or is it the center of the epipolar baseline? I am using OpenCV for reference.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.