Stereo matching using line segments of zero crossings.

For more than twenty years area correlation has been the preferred method in photogrammetry to find conjugent points on digital images. While in certain cases this method produces good results, in others, it fails. The human visual system is remarkably adept at stereo matching and is superior to area correlation. The theory of human vision is understood as an information process, and computer models clearly indicate that the method of stereo matching is not that of area correlation. The paper summarizes the most important results, and a new method of matching line segments of zero crossings is suggested to precisely determine a sufficient number of points for the orientation of images, without the need for approximate locations of those points.-Authors