High-speed compact photorefractive joint transform correlator

Jerome Colin; Henri J. Rajbenbach; Vincent Laude; Sebastien Breugnot; Jean-Pierre Huignard

doi:10.1117/12.326776

9 October 1998 High-speed compact photorefractive joint transform correlator

Jerome Colin, Henri J. Rajbenbach, Vincent Laude, Sebastien Breugnot, Jean-Pierre Huignard

Proceedings Volume 3466, Algorithms, Devices, and Systems for Optical Information Processing II; (1998) https://doi.org/10.1117/12.326776
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

A high speed optical correlator is presented in this paper. It is a joint transform correlator using a BSO photorefractive crystal in the Fourier plane. The performance of the system such a rotation and scale robustness are presented for fingerprint recognition. To demonstrate the interest of such an optical processor, a comparison with numerical systems is presented. Besides, we will also show that the evolution of correlators is quite compatible with the evolution of numerical processors.

Citation Download Citation

Jerome Colin, Henri J. Rajbenbach, Vincent Laude, Sebastien Breugnot, and Jean-Pierre Huignard "High-speed compact photorefractive joint transform correlator", Proc. SPIE 3466, Algorithms, Devices, and Systems for Optical Information Processing II, (9 October 1998); https://doi.org/10.1117/12.326776

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