Implementation of bipolar real-valued input scenes in a real-time optical correlator: application to color pattern recognition

被引：20
|
作者：
Moreno, I
Campos, J
Yzuel, MJ
Kober, V
机构：
[1] Russian Acad Sci, Inst Informat Transmiss Problems, Moscow 101447, Russia
[2] Univ Autonoma Barcelona, Dept Fis, Grp Opt, Bellaterra 08193, Spain
来源：
OPTICAL ENGINEERING | 1998年 / 37卷 / 01期
关键词：
recognition techniques; color pattern recognition; spatial light modulators; image preprocessing; phase-only filter;
D O I：
10.1117/1.601841
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Preprocessing of the input scene can be used to improve the performance of an optical correlator. The result of the preprocessing algorithms can be bipolar real-valued images, with positive and negative values, for input to the optical correlator. We present different procedures for the implementation of the bipolar real-valued signal with spatial light modulators that work in either amplitude-only or phase-only regimes. We apply these techniques to the implementation of bipolar real-valued preprocessed input images in color pattern recognition. (C) 1998 Society of Photo-Optical Instrumentation Engineers. [S0091-3286(98)00701-6].
引用
收藏
页码：144 / 150
页数：7
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