Elsevier

Optics Communications

Volume 70, Issue 2, 15 February 1989, Pages 87-91
Optics Communications

Optical implementation of the 2-D Hopfield model for a 2-D associative memory

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Abstract

Two kinds of incoherent optical systems based on multiple-imaging and correlation are suggested to implement the 2-D Hopfield model for a binary image associative memory. Then a modified 2-D Hopfield model for a hetero-associative memory is introduced. Therefore, auto- and hetero-associative memories can be implemented in the same systems. Experiments are given, too.

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