OPTICAL IMPLEMENTATION OF A 2ND-ORDER NEURAL NETWORK

被引：19

作者：

ZHANG, L

ROBINSON, MG

JOHNSON, KM

机构：

[1] Center for Optoelectronic Computing Systems, Department of Electrical and Computer Engineering, University of Colorado at Boulder, Boulder, CO

来源：

OPTICS LETTERS | 1991年 / 16卷 / 01期

关键词：

D O I：

10.1364/OL.16.000045

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An optical implementation of a single-layer, second-order neural network is presented. The quadratic products are obtained by passing the optical beam twice through the input ferroelectric liquid-crystal (FLC) spatial light modulator (SLM), with the interconnection weights being implemented by a further two-dimensional 128 x 128 FLC SLM. The machine successfully associates eight randomly chosen pattern-target pairs (dimensions 16 and 4, respectively) and can learn the parity association. Translation invariance is also demonstrated. Results from a computer model indicate that input SLM contrast ratios of 4:1 and electronic noise of 10% of the maximum output can be tolerated.

引用

页码：45 / 47

页数：3

共 6 条

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