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Proceedings Paper

Real-time rotation-invariant circular-harmonic wavelet-matched filters using the coupled mode liquid crystal television (LCTV)
Author(s): Lixin Shen; Yunlong Sheng
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Paper Abstract

We introduce the circular harmonic wavelet matched filter, that uses the wavelet transform in improve the performance of the rotation invariant circular harmonic filters in terms of the peak sharpness and the robustness to noise. In the optical implementation, the wavelet bandpass filter guarantees the full range rotation invariance of the filter by eliminating the circular subsampling error.

Paper Details

Date Published: 28 March 1995
PDF: 10 pages
Proc. SPIE 2490, Optical Pattern Recognition VI, (28 March 1995); doi: 10.1117/12.205772
Show Author Affiliations
Lixin Shen, COPL/Univ. Laval (Canada)
Yunlong Sheng, COPL/Univ. Laval (Canada)

Published in SPIE Proceedings Vol. 2490:
Optical Pattern Recognition VI
David P. Casasent; Tien-Hsin Chao, Editor(s)

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