Intensity signal processing of images for optical to radar scene matching.

The basic scene matching problem consists of locating a region of an image with the corresponding region of another view of the same scene. In the general case, the images axe produced by completely different sensors at different viewing geometries. Prior to the matching, digital signal processing must be performed to line up the two images geometrically and to match their intensities. Two intensity signal processing methods have been developed and used to match the intensity value of one image to that of the other as closely as possible. Objects of interest represented by subimages of one scene were located in the other using images intensity corrected by the two methods. Scene matching performances were then presented in terms of the probability of a match as a function of the probability of false fix.