 Images of an object acquired by two cameras simultaneously in different viewing angles, or by one single camera at different time in different viewing angles, are used to restore its 3D geometric information and reconstruct its 3D profile and location.This is more direct than Monocular methods such as shape-from-shading.Binocular stereo vision method requires two identical cameras with parallel optical axis to observe one same object, acquiring two images from different points of view.