二元联合变换相关器的实现方法研究  

A research on method for realizing binary joint transform correlator

作　　者：袁祥岩[1] 于大勇[1] 陶纯堪[1] 

机构地区：[1]南京理工大学电光学院432教研室,江苏南京210094

出　　处：《光电工程》2002年第6期35-38,共4页Opto-Electronic Engineering

摘　　要：采用中值取阈,局部取阈,参考图像功率谱取阈和联合功率谱(JPS)取阈四种方法对传统联合变换相关器的功率谱二值化,从而将振幅调制的功率谱转化为脉冲调制的功率谱。计算机模拟结果表明二值化可以获得更清晰更尖锐的相关峰,其中联合功率谱取阈法的识别效果最佳。The amplitude modulated power spectrum is converted into pulse modulated power spectrum through using 4 methods such as median threshold, local threshold, reference image power spectral threshold and joint power spectrum threshold to binaryzation of power spectrum for traditional joint transform correlator. Computer simulation results show that the sharper correlation peak can be achieved by binaryzation, among which the identification effect of joint power spectrum threshold is optimal.

关 键 词：二元联合变换相关器 联合功率谱 二值化 模式识别 图像识别 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]