Share Email Print
cover

Proceedings Paper

Wavelet invariant pattern recognition system based on the volume holographic correlator
Author(s): Qingzeng Xue; Wenzhao Tan; Yingbai Yan; Qingsheng He
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

In this paper, based on the volume holographic storage in a photorefractive crystal, a new rotation-, shift-invariant pattern recognition system, with the wavelet transform, has been set up. Parameters of rotated input pattern are first estimated and normalized. Rotation-, shift-invariant pattern recognition is then achieved by correlating the normalized input pattern with the undistorted reference, using the system. Simulation result and experiments demonstrate the effectiveness of this approach.

Paper Details

Date Published: 23 January 2002
PDF: 6 pages
Proc. SPIE 4459, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage, (23 January 2002); doi: 10.1117/12.454021
Show Author Affiliations
Qingzeng Xue, Tsinghua Univ. (China)
Wenzhao Tan, Tsinghua Univ. (China)
Yingbai Yan, Tsinghua Univ. (China)
Qingsheng He, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 4459:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage
Shizhuo Yin; Francis T. S. Yu; Hans J. Coufal; Hans J. Coufal, Editor(s)

© SPIE. Terms of Use
Back to Top