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Continuous Optical Associative Memory

  • Alain Bergeron
  • Henri H. Arsenault
  • Denis Gingras

Abstract

Associative memories were the first optical neural network architecture to be1, 2 implemented. Previous optical implementations have some drawbacks such as the need for an interruption of the light beam path between the different layers of the neural network due mainly by the lack of suitable optical thresholding units. As a consequence, most of the implementations so far used detectors coupled with light sources3. This solution however may cause data bottlenecks while requiring additionnai components.

Keywords

Associative Memory Spatial Light Modulator Bidirectional Associative Memory Input Scene Thresholding Operation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1-.
    N. H. Farhat, D. Psaltis, A. Prata and E. Paek, “Optical Implementation of the Hopfiel Model”, Applied Optics, vol. 24, no. 10, pp. 1469–1475, 1985.CrossRefGoogle Scholar
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    B. Kosko, “Adaptive Bidirectional Associative Memories”, Applied Optics, vol. 26 no. 23, pp. 4947–4960, 1987.CrossRefGoogle Scholar
  3. 3-.
    S. Jin-Yuan, Z. Yan-Xin, “Optical Pattern Recognition System Based on a Winner-Take-All Model of a Neural Network”, Optical Engineering, vol. 32, No. 5, pp. 1053–1056, May 1993.CrossRefGoogle Scholar
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    E. Paek and D. Psaltis, “Optical Associative Memory Using Fourier Transform Holograms”, Optical Engineering, vol. 26 No. 5, pp. 428–433, May 1987.CrossRefGoogle Scholar
  5. 5-.
    A. Bergeron, H. H. Arsenault, E. Eustache, D. Gingras, “Optoelectronic Module for Winner-Take-All Operations in Optical Neural Network”, to be published in Applied Optics.Google Scholar
  6. 6-.
    A. Bergeron, H. H. Arsenault, J. Gauvin, D. Gingras, “Computer-Generated Holograms Improved by a Global Iterative Coding”, Optical Engineering, vol. 32, no. 9, pp. 2216–2226.Google Scholar

Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Alain Bergeron
    • 1
    • 2
  • Henri H. Arsenault
    • 2
  • Denis Gingras
    • 1
  1. 1.National Optics Institute/Institut national d’optiqueSainte-FoyCanada
  2. 2.COPLUniversité LavalSainte-FoyCanada

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