Articles

Implementation of bipolar real-valued input scenes in a real-time optical correlator: application to color pattern recognition

[+] Author Affiliations
Ignacio Moreno, Juan Campos, Mari´a J. Yzuel, Vitaly Kober

Universitat Auto`noma de Barcelona, Departament de Fi´sica, Grup d’Optica, 08193 Bellaterra, Spain

Opt. Eng. 37(1), 144-150 (Jan 01, 1998). doi:10.1117/1.601841
History: Received May 28, 1997; Revised Aug. 11, 1997; Accepted Aug. 11, 1997
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Abstract

Preprocessing of the input scene can be used to improve the performance of an optical correlator. The result of the preprocessing algorithms can be bipolar real-valued images, with positive and negative values, for input to the optical correlator. We present different procedures for the implementation of the bipolar real-valued signal with spatial light modulators that work in either amplitude-only or phase-only regimes. We apply these techniques to the implementation of bipolar real-valued preprocessed input images in color pattern recognition. © 1998 Society of Photo-Optical Instrumentation Engineers.

© 1998 Society of Photo-Optical Instrumentation Engineers

Citation

Ignacio Moreno ; Juan Campos ; Mari´a J. Yzuel and Vitaly Kober
"Implementation of bipolar real-valued input scenes in a real-time optical correlator: application to color pattern recognition", Opt. Eng. 37(1), 144-150 (Jan 01, 1998). ; http://dx.doi.org/10.1117/1.601841


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