A Mach-Zehnder nonzero order joint transform correlator for polychromatic pattern recognition

Chungchen Lee; Chulung Chen

doi:10.1117/12.667939

20 January 2006 A Mach-Zehnder nonzero order joint transform correlator for polychromatic pattern recognition

Chungchen Lee, Chulung Chen

Proceedings Volume 6027, ICO20: Optical Information Processing; 602717 (2006) https://doi.org/10.1117/12.667939
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

In this article, we apply a novel method to polychromatic pattern recognition with a Mach-Zehnder nonzero order joint transform correlator. It is achieved by using the special arrangement of separated polychromatic components of objects and reference images and Lagrange multipliers technique to synthesize a reference function in the input spatial domain. The purpose is to sharpen the correlation peak and to reduce correlation sidelobes. Besides, we cleverly utilize the Stokes relations to remove the large zero order term directly in one step in this structure. Simulation results are presented to illustrate the improvements.

Citation Download Citation

Chungchen Lee and Chulung Chen "A Mach-Zehnder nonzero order joint transform correlator for polychromatic pattern recognition", Proc. SPIE 6027, ICO20: Optical Information Processing, 602717 (20 January 2006); https://doi.org/10.1117/12.667939

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