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Automatic Classification of Images with a Photorefractive Crystal

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Abstract

We propose a system that takes advantage of volume holographic interconnections and of the particular kinetics of photorefractive crystals. This system is a neural network that implements a Kohonen self-organizing map. It is devoted to the automatic classification of a set of vectors according to their mutual correlations. We present in this paper the problems we encountered while defining and building the experimental setup as well as some solutions we found to improve the system.

© 1999 Optical Society of America

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