2-D Invariant Object Recognition Using Distributed Associative Memory

This paper describes an approach to two-dimensional object recognition. Complex-log conformal mapping is combined with a distributed associative memory l o create a system which recognizes objects regardless of changes in rotation or scale. Recalled information from the memorized database is used to classify an object, reconstruct the memorized version of the object, and estimate the magnitude of changes in scale or rotation. The system response is resistant to moderate amounts of noise and occlusion. Several experiments, using real, gray scale images, are presented to show the feasibility of our approach .