 Given two or more images of the same 3D scene, taken from different points of view, the correspondence problem refers to the task of finding a set of points in one image which can be identified as the same points in another image.To do this, points or features in one image are matched with the corresponding points or features in another image.The images can be taken from a different point of view, at different times, or with objects in the scene in general motion relative to the camera(s).