SCALE-INVARIANT OPTICAL CORRELATORS USING FERROELECTRIC LIQUID-CRYSTAL SPATIAL LIGHT MODULATORS

被引：25
|
作者：
WILKINSON, TD [1 ]
PETILLOT, Y [1 ]
MEARS, RJ [1 ]
DELATOCNAYE, JLD [1 ]
机构：
[1] ECOLE NATL SUPER TELECOM BRETAGNE,OPT & SYST COMMUN GRP,F-29285 BREST,FRANCE
来源：
APPLIED OPTICS | 1995年 / 34卷 / 11期
关键词：
D O I：
10.1364/AO.34.001885
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
New experimental results for scale-invariant implementations of the binary phase-only matched filter and the nonlinear joint transform correlator using ferroelectric liquid-crystal spatial light modulators are presented. We provide a comparative study of both architectures for real-time road-sign recognition. Signal-to-peak-noise ratios in excess of 5 dB over a scale range of 1.0 to 2.0 are achieved under realistic conditions of clutter.
引用
收藏
页码：1885 / 1890
页数：6
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