Rotation- and scale-invariant feature extraction by a diffractive optical inner-product transform

被引：3
|
作者：
Roux, FS
机构：
[1] Department of Electrical and Electronic Engineering, Potchefstroom University for Christian Higher Education, Potchefstroom, 2520
来源：
APPLIED OPTICS | 1996年 / 35卷 / 11期
关键词：
rotation and scale invariance; diffractive optics; pattern recognition; inner-product;
D O I：
10.1364/AO.35.001894
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A diffractive optical element that is capable of extracting rotation- and scale-invariant features from input images is presented. The diffractive optical element performs an inner product between the input image and a set of basis functions. This set of basis functions is derived from that used in the Fourier-Mellin transform. Simulated results from scaled and rotated versions of two input images are presented. (C) 1996 Optical Society of America
引用
收藏
页码：1894 / 1899
页数：6
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