Rotation-invariant pattern recognition using a joint transform correlator

被引：9
|
作者：
Chang, SD [1 ]
Boothroyd, S [1 ]
Palacharla, P [1 ]
Pachanathan, S [1 ]
机构：
[1] UNIV OTTAWA, DEPT ELECT ENGN, OTTAWA, ON K1N 6N5, CANADA
来源：
OPTICS COMMUNICATIONS | 1996年 / 127卷 / 1-3期
关键词：
pattern recognition; circular harmonic function; joint transform correlator; phase only filtering; optical correlator;
D O I：
10.1016/0030-4018(96)00065-X
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present numerical and experimental results for a rotation-invariant pattern recognition method using a joint transform correlator. The reference image input to the correlator along with the input scene is a circular harmonic function. This positive real function is derived from a phase only circular harmonic matched filter for the reference image and is shown to give good discrimination for translation and rotation-invariant pattern recognition.
引用
收藏
页码：107 / 116
页数：10
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