Optical N4 correlator implementation of 2D wavelet transform

Yunlong Sheng; Thomas Taiwei Lu; Danny Roberge

doi:10.1117/12.138468

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1 October 1992 Optical N⁴ correlator implementation of 2D wavelet transform

Yunlong Sheng, Thomas Taiwei Lu, Danny Roberge

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Proceedings Volume 1705, Visual Information Processing; (1992) https://doi.org/10.1117/12.138468
Event: Aerospace Sensing, 1992, Orlando, FL, United States

Abstract

We propose optical multichannel N⁴ correlator for implementation of the wavelet transform of two dimensional function, that yields four dimensional wavelet transform coefficients. We propose also the optical wavelet matched filter for two dimension pattern recognition. Advantage of this new band-pass matched filter is we can select image features to be enhanced by choosing the wavelet functions before the matched filtering. Experimental results are shown.

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Yunlong Sheng, Thomas Taiwei Lu, and Danny Roberge "Optical N⁴ correlator implementation of 2D wavelet transform", Proc. SPIE 1705, Visual Information Processing, (1 October 1992); https://doi.org/10.1117/12.138468

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