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Proceedings Paper

Optical pattern recognition with phase-only circular harmonic filtering
Author(s): Hon-Fai Yau; Cheng Min Lee; Chi Ching Chang; Ming-Wen Chang
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Paper Abstract

Optical demonstration of phase-only circular harmonic filtering using a binary CGH in a standard Fourier transform correlator is reported here. The experimental results have confirmed the computer simulated results1 in that the phase-only circular harmonic filtering produces smaller side-lobes and more prominent correlation peaks with the target.

Paper Details

Date Published: 1 September 1990
PDF: 5 pages
Proc. SPIE 1296, Advances in Optical Information Processing IV, (1 September 1990); doi: 10.1117/12.21258
Show Author Affiliations
Hon-Fai Yau, Chung Cheng Institute of Technology (Taiwan)
Cheng Min Lee, National Central Univ. (Taiwan)
Chi Ching Chang, Chung Cheng Institute of Technology (Taiwan)
Ming-Wen Chang, National Central Univ. (Taiwan)


Published in SPIE Proceedings Vol. 1296:
Advances in Optical Information Processing IV
Dennis R. Pape, Editor(s)

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