Welcome, the Computer Vision Laboratory at the University of Southern California is one of the major centers of computer vision research for thirty years. We conduct research in a number of basic and applied areas. Specific topics include image and scene segmentation, stereo and motion analysis, range analysis, perceptual grouping, shape analyis and object recognition. We have worked on applications to robotics and manufacturing, mobile robots and aerial photo interpretation. Our approach emphasizes the use of segmented (part- based) symbolic descriptions of objects. Such representations have long been believed to have significant advantages over other alternatives but have been difficult to infer from the sensed data. Our group has been successful in making significant progress on this topic and is pursuing the use of these techniques for practical applications.