Optical pattern recognition with phase-only circular harmonic filtering

Hon-Fai Yau; Cheng Min Lee; Chi Ching Chang; Ming-Wen Chang

doi:10.1117/12.21258

1 September 1990 Optical pattern recognition with phase-only circular harmonic filtering

Hon-Fai Yau, Cheng Min Lee, Chi Ching Chang, Ming-Wen Chang

Proceedings Volume 1296, Advances in Optical Information Processing IV; (1990) https://doi.org/10.1117/12.21258
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

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.

Citation Download Citation

Hon-Fai Yau, Cheng Min Lee, Chi Ching Chang, and Ming-Wen Chang "Optical pattern recognition with phase-only circular harmonic filtering", Proc. SPIE 1296, Advances in Optical Information Processing IV, (1 September 1990); https://doi.org/10.1117/12.21258

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