光学学报, 1996, 16 (11): 1596, 网络出版: 2006-12-04
基于液晶光阀非线性变换的实时光学相关识别
Real Time Optical Correlation Based on Nonlinear Transform of LCLV
液晶光阀 非线性变换 光折变晶体 实时光学相关 liquid crystal light valve nonlinear transform photorefrective crystal real time optical correlator
摘要
提出了一种高鉴别能力的实时光学相关器，它采用液晶光阀(LCLV)作为实时输入器件，并利用其非线性变换特性对图像微分预处理；全息记录材料采用光折变晶体，且使用会聚球面波作参考光。所给出的实验结果表明，该光学相关器具有鉴别能力高、实时性和灵活性强，以及结构紧凑的特点。
Abstract
A real time optical correlator with high discrimination is suggested in this paper. In this correlator, a liquid crystal light valve (LCLV) is used as real time input and image preprocessing device. In recording hologram, a piece of photorefractive crystal (Fe∶LiNbO 3) is used as holograhic recording material and a convergent spherical wave as reference light wave. the correlator is characterized by high discrimination, real time and flexible processing, and compact constructure.
康辉, 周金鹏, 战元龄. 基于液晶光阀非线性变换的实时光学相关识别[J]. 光学学报, 1996, 16(11): 1596. 康辉, 周金鹏, 战元龄. Real Time Optical Correlation Based on Nonlinear Transform of LCLV[J]. Acta Optica Sinica, 1996, 16(11): 1596.
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