Visual shape computation

TitleVisual shape computation
Publication TypeJournal Articles
Year of Publication1988
AuthorsAloimonos Y
JournalProceedings of the IEEE
Pagination899 - 916
Date Published1988/08//
ISBN Number0018-9219
Keywordsa priori knowledge, active vision, computational problems, Computer vision, computing shaping from motion, contour, cues, Focusing, HUMANS, ill posed problems, Machine vision, Psychology, regularization theory, RETINA, sense of Hadamard, shading, SHAPE, space of possible solutions, Stereo vision, Surface texture, TEXTURE, visual shape computation, Visual system

Perceptual processes responsible for computing shape from several cues, including shading, texture, contour, and stereo, are examined. It is noted that these computational problems, as well as that of computing shaping from motion, are ill-posed in the sense of Hadamard. It is suggested that regularization theory can be used along with a priori knowledge to restrict the space of possible solutions, and thus restore the problem's well-prosedness. Some alternative methods are outlined, and the idea of active vision is explored briefly in connection with the problem