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Adaptive optical processing system with optical associative memory

Authors :
Toyoda, Haruyoshi
Mukohzaka, Naohisa
Suzuki, Yoshiji
Ishikawa, Masatoshi
Source :
Applied Optics. March 10, 1993, Vol. 32 Issue 8, p1354, 5 p.
Publication Year :
1993

Abstract

An architecture for a novel adaptive optical processing system using optical associative memory with learning capability is proposed. The optical system consists of an optical preprocessor for feature extraction and optical associative memory. The feature-extraction ability can give excellent processing capability to the optical associative memory. In order to demonstrate this system, an optical Fourier transform is used as the preprocessor, and the system can achieve shift invariance. An all-optical configuration of the system is proposed, and the experimental results applied to handwritten-character recognition by using an hybrid opto-electronic system are shown and discussed.

Details

ISSN :
1559128X
Volume :
32
Issue :
8
Database :
Gale General OneFile
Journal :
Applied Optics
Publication Type :
Academic Journal
Accession number :
edsgcl.13798793