1 September 1992 Optical Haar wavelet transform
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Optical Engineering, 31(9), (1992). doi:10.1117/12.59917
Abstract
An optical Haar mother wavelet is created with a Semetex 128 x 128 magneto-optic spatial light modulator. Two techniques for dilating the mother wavelet are explored: (1) aperture stopping and (2) operating the SLM in ternary phase-amplitude mode. Discrete resolution levels of a continuous wavelet transform are obtained by optically correlating a binarized image with multiple dilations ofthe mother wavelet. Frequency-plane masks for the correlation process are generated using thermoplastic holography. Experimental results are compared with a digital simulation of the wavelet transform.
Thomas J. Burns, Kenneth H. Fielding, Steven K. Rogers, Steven D. Pinski, Dennis W. Ruck, "Optical Haar wavelet transform," Optical Engineering 31(9), (1 September 1992). http://dx.doi.org/10.1117/12.59917
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