 Camera calibration in Binocular Stereo Vision refers to the determination of the mapping relationship between the image points P1(u1,v1) and P2(u2,v2), and space coordinate P(xp, yp, zp) in the 3D scenario.Camera calibration is a basic and essential part in 3D reconstruction via Binocular Stereo Vision.The aim of feature extraction is to gain the characteristics of the images, through which the stereo correspondence processes.