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Optical Engineering

Optical composite wavelet-matched filters
Author(s): Danny Roberge; Yunlong Sheng
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Paper Abstract

The wavelet-matched filter performs the continuous wavelet transform for edge feature enhancement and the correlation between two wavelet transforms for pattern recognition in a single step. The composite wavelet-matched filter is a combination of the wavelet-matched filters, that yields desired outputs for a given set of training mages. We present the definition, the iterative design algorithm, the quasi-orthogonality of the components, and the optical implementation of the composite wavelet-matched filter. The filter yields a sharp correlation peak at the origin without sidelobe. A comparison between the composite wavelet-matched filter with the conventional composite filter is also given.

Paper Details

Date Published: 1 July 1994
PDF: 6 pages
Opt. Eng. 33(7) doi: 10.1117/12.172249
Published in: Optical Engineering Volume 33, Issue 7
Show Author Affiliations
Danny Roberge, Univ. Laval (Canada)
Yunlong Sheng, Univ. Laval (Canada)

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