Wavelet invariant pattern recognition system based on the volume holographic correlator

Qingzeng Xue; Wenzhao Tan; Yingbai Yan; Qingsheng He

doi:10.1117/12.454021

23 January 2002 Wavelet invariant pattern recognition system based on the volume holographic correlator

Qingzeng Xue, Wenzhao Tan, Yingbai Yan, Qingsheng He

Proceedings Volume 4459, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage; (2002) https://doi.org/10.1117/12.454021
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

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.

Citation Download Citation

Qingzeng Xue, Wenzhao Tan, Yingbai Yan, and Qingsheng He "Wavelet invariant pattern recognition system based on the volume holographic correlator", Proc. SPIE 4459, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage, (23 January 2002); https://doi.org/10.1117/12.454021

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