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Proceedings Paper

Complementary-encoding holographic associative memory using a photorefractive crystal
Author(s): ShiFu Yuan; Minxian Wu; Yingbai Yan; Guofan Jin
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Paper 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.

Paper Details

Date Published: 12 June 1996
PDF: 5 pages
Proc. SPIE 2754, Advances in Optical Information Processing VII, (12 June 1996); doi: 10.1117/12.243137
Show Author Affiliations
ShiFu Yuan, Tsinghua Univ. (China)
Minxian Wu, Tsinghua Univ. (China)
Yingbai Yan, Tsinghua Univ. (China)
Guofan Jin, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 2754:
Advances in Optical Information Processing VII
Dennis R. Pape, Editor(s)

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