Optical pattern recognition system using binary phase-only correlator and optimized correlation filters

Masaki Taniguchi; Kazunori Kurokawa; Kazuyoshi Itoh; Katsunori Matsuoka; Yoshiki Ichioka

doi:10.1117/12.246727

23 August 1996 Optical pattern recognition system using binary phase-only correlator and optimized correlation filters

Masaki Taniguchi, Kazunori Kurokawa, Kazuyoshi Itoh, Katsunori Matsuoka, Yoshiki Ichioka

Proceedings Volume 2774, Design and Engineering of Optical Systems; (1996) https://doi.org/10.1117/12.246727
Event: Optical Instrumentation and Systems Design, 1996, Glasgow, United Kingdom

Abstract

We propose a real-time optical pattern recognition system using an optical correlator. The system consists of two high speed spatial light modulators. To achieve high performance of pattern classification and to obtain bright correlation signals, the binary phase only modulation of both input patterns and correlation filters is applied. In order to suppress sidelobes in the correlation plane and to achieve the multiple-object pattern classification, optimized correlation filters are utilized. The experimental results shows that bright correlation peaks can be obtained without false peaks or large sidelobes.

Citation Download Citation

Masaki Taniguchi, Kazunori Kurokawa, Kazuyoshi Itoh, Katsunori Matsuoka, and Yoshiki Ichioka "Optical pattern recognition system using binary phase-only correlator and optimized correlation filters", Proc. SPIE 2774, Design and Engineering of Optical Systems, (23 August 1996); https://doi.org/10.1117/12.246727

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