MULTIMATCHED FILTERING USING A MICROLENS ARRAY FOR AN OPTICAL-NEURAL PATTERN-RECOGNITION SYSTEM

被引:6
作者
AGU, M
AKIBA, A
MOCHIZUKI, T
KAMEMARU, S
机构
[1] Ibaraki University, Faculty of Engineering, Hitachi, 316
来源
APPLIED OPTICS | 1990年 / 29卷 / 28期
关键词
Micromatched filter; Optical-; neural; Planar microlens;
D O I
10.1364/AO.29.004087
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In the optical-neural recognition system proposed for flexible parallel information processing, a planar microlens array is used to form simultaneously many identical Fourier transforms of an input pattern; from each transform the feature extraction of the input pattern is performed in parallel through optical correlations with memorized standard spatial filters. In this paper, it is experimentally shown that the multimatched filtering system, as the optical feature extracting part of the proposed system, can be composed of a planar array of graded index microlenses of 1.05-mm diameter and 2.6-mm focal length. © 1990 Optical Society of America.
引用
收藏
页码:4087 / 4091
页数:5
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