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Proceedings Paper

Scale-invariant pattern recognition system based on volume holographic wavelet correlator
Author(s): Qingzeng Xue; Yingbai Yan; Qingsheng He
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Paper Abstract

In this paper, based on the volume holographic storage in a photorefractive crystal, a new scale-invariant pattern recognition system, with the wavelet transform, has been set up. The wavelet filter can increase the discrimination capability of the correlator. However the wavelet-filtered image is edge-enhanced, the phase-only logarithmic radial harmonic (LRH) filter is not suitable for such image when regarding the scale invariance. The LRH filter is modified to achieve scale invariant pattern recognition. Simulation result validates the theory.

Paper Details

Date Published: 20 September 2001
PDF: 6 pages
Proc. SPIE 4552, Image Matching and Analysis, (20 September 2001); doi: 10.1117/12.441545
Show Author Affiliations
Qingzeng Xue, Tsinghua Univ. (China)
Yingbai Yan, Tsinghua Univ. (China)
Qingsheng He, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 4552:
Image Matching and Analysis

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