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.
Complementary-encoding holographic associative memory using a photorefractive crystal
Advances in Optical Information Processing VII ; 1996 ; Orlando,FL,United States
Proc. SPIE ; 2754
1996-06-12
Conference paper
Electronic Resource
English
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