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Optical Engineering

Optical Haar wavelet transform
Author(s): Thomas J. Burns; Kenneth H. Fielding; Steven K. Rogers; Steven D. Pinski; Dennis W. Ruck
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Paper 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.

Paper Details

Date Published: 1 September 1992
PDF: 7 pages
Opt. Eng. 31(9) doi: 10.1117/12.59917
Published in: Optical Engineering Volume 31, Issue 9
Show Author Affiliations
Thomas J. Burns, Air Force Institute of Technology (United States)
Kenneth H. Fielding, Air Force Institute of Technology (United States)
Steven K. Rogers, Air Force Research Lab. (United States)
Steven D. Pinski, Air Force Institute of Technology (United States)
Dennis W. Ruck, Air Force Institute of Technology (United States)

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