Calibrate two cameras opencv

1. What is multi camera calibration?
2. What is stereo calibration?
3. What is camera calibration OpenCV?

What is multi camera calibration?

Multi-camera calibration entails estimating intrinsic parameters like focal length and principal point of individ- ual cameras and the extrinsic parameters of relative rota- tion and translation between all pairs of cameras.

What is stereo calibration?

Stereo calibration will essentially find out the rotation R and translation t between both the cameras and this will help us find point correspondences in the left and right image planes.

What is camera calibration OpenCV?

Camera Calibration is nothing but estimating the parameters of a camera, parameters about the camera are required to determine an accurate relationship between a 3D point in the real world and its corresponding 2D projection (pixel) in the image captured by that calibrated camera.