Complementary-encoding holographic associative memory using a photorefractive crystal

ShiFu Yuan; Minxian Wu; Yingbai Yan; Guofan Jin

doi:10.1117/12.243137

12 June 1996 Complementary-encoding holographic associative memory using a photorefractive crystal

ShiFu Yuan, Minxian Wu, Yingbai Yan, Guofan Jin

Proceedings Volume 2754, Advances in Optical Information Processing VII; (1996) https://doi.org/10.1117/12.243137
Event: Aerospace/Defense Sensing and Controls, 1996, Orlando, FL, United States

Abstract

We present a holographic implementation of accurate associative memory with only one holographic memory system. In the implementation, the stored and test images are coded by using complementary-encoding method. The recalled complete image is also a coded image that can be decoded with a decoding mask to get an original image or its complement image. The experiment shows that the complementary encoding can efficiently increase the addressing accuracy in a simple way. Instead of the above complementary-encoding method, a scheme that uses complementary area-encoding method is also proposed for the holographic implementation of gray-level image associative memory with accurate addressing.

Citation Download Citation

ShiFu Yuan, Minxian Wu, Yingbai Yan, and Guofan Jin "Complementary-encoding holographic associative memory using a photorefractive crystal", Proc. SPIE 2754, Advances in Optical Information Processing VII, (12 June 1996); https://doi.org/10.1117/12.243137

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