Recognition of articulated and occluded objects

A model-based automatic target recognition (ATR) system is developed to rec ognize articulated and occluded objects in Synthetic Aperture Radar (SAR) i mages, based on invariant features of the objects. Characteristics of SAR t arget image scattering centers, azimuth variation, and articulation invaria nts are presented. The basic elements of the new recognition system are des cribed and performance results are given for articulated, occluded and occl uded articulated objects and they are related to the target articulation in variance and percent unoccluded.