Joint transform correlator with minimum peak variance in nonzero-mean noise environment

被引:6
作者
Chen, CL [1 ]
机构
[1] Yuan Ze Univ, Dept Elect Engn, Tao Yuan 32026, Taiwan
关键词
joint transform correlator; peak variance;
D O I
10.1016/S0030-4018(00)01128-7
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The design of a nonzero order joint transform correlator with minimum peak variance has been presented for distortion invariant pattern recognition, We minimized the peak variance of the cross-correlation output in the presence of input nonzero-mean noise, subject to the constraints on the cross-correlation peak as well as the deterministic mean of the noise. A general solution for the space-domain based reference function has been proposed to remove the effect of the deterministic mean caused by the noise. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:319 / 323
页数:5
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