Markov Random Fields Can Bridge Levels of Abstraction
Paul R. Cooper, Peter N. Prokopowicz · 1991
ion Paul R. Cooper Institute for the Learning Sciences Northwestern University Evanston, IL [email protected] Peter N. Prokopowicz Institute for the Learning Sciences Northwestern University Evanston, IL [email protected] Abstract Network vision systems must make inferences from evidential information across levels of representational abstraction, from low level invariants, through intermediate scene segments, to high level behaviorally relevant object descriptions. This paper shows that such networks can be realized as Markov Random Fields (MRFs). We show first how to construct an MRF functionally equivalent to a Hough transform parameter network, thus establishing a principled probabilistic basis for visual networks. Second, we show that these MRF parameter networks are more capable and flexible than traditional methods. In particular, they have a well-defined probabilistic interpretation, intrinsically incorporate feedback, and offer richer representations and decision ca...