Optical wavelet processor using cascaded liquid crystal television spatial light modulators (LCTV SLMs)

Tien-Hsin Chao; Araz Yacoubian; Brian Lau; Eric R. Hegblom; William J. Miceli

doi:10.1117/12.187285

29 September 1994 Optical wavelet processor using cascaded liquid crystal television spatial light modulators (LCTV SLMs)

Tien-Hsin Chao, Araz Yacoubian, Brian Lau, Eric R. Hegblom, William J. Miceli

Author Affiliations +

Proceedings Volume 2297, Photonics for Processors, Neural Networks, and Memories II; (1994) https://doi.org/10.1117/12.187285
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

A novel optical wavelet processor is introduced. Generic wavelet functions, consisting of both amplitude and phase information can be optically synthesized using two cascaded Liquid Crystal Television Spatial Light Modulators. An innovative ternary-valued shape discriminant wavelet filter and its optical implementation is also introduced. Experimental demonstrations of multitarget classification using both a 2D Morlet wavelet filter and a ternary wavelet filter are also reported. The experimental results show that the wavelet filters are superior in discrimination than that of the conventional correlation technique.

Citation Download Citation

Tien-Hsin Chao, Araz Yacoubian, Brian Lau, Eric R. Hegblom, and William J. Miceli "Optical wavelet processor using cascaded liquid crystal television spatial light modulators (LCTV SLMs)", Proc. SPIE 2297, Photonics for Processors, Neural Networks, and Memories II, (29 September 1994); https://doi.org/10.1117/12.187285

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