Distance Estimation

It is not possible to estimate the distance (depth) of a point object'P' from the camera using a single camera'O'. This is because'P' lying anywhere on the projective line will map to point'p' in the image. Stereo vision is a technique that can estimate the distance (depth) of a point object'P' from the camera using two cameras. The foundation of stereo vision is similar to 3D perception in human vision and is based on the triangulation of rays from multiple viewpoints. In this tutorial, we'll be using the Parallel stereo camera system for depth estimation.