Share Email Print
cover

Proceedings Paper

Associative memory system based on volume holographic storage and wavelet transform
Author(s): Wenyi Feng; Yingbai Yan; Guofan Jin; Minxian Wu; Qingsheng He
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

A novel system for associative memory is proposed and constructed in this paper. It is based on the theory of wavelet matched filtering and the associative characteristic of volume holographic storage in a photorefractive crystal. A primary image can be remembered and recovered from its deformed form or main features with the system. The photorefractive crystal in the system stands for both the cell of identification calculation and that of image storage. A high efficiency is obtained by a means of parallel processing in the system. The performance of the system is more accurate with the introduction of wavelet transform to the system, which is testified by the comparison between a conventional system and the novel system. Its application in fast query of human face from a face database is studied. The given experimental results are promising.

Paper Details

Date Published: 20 September 1999
PDF: 8 pages
Proc. SPIE 3801, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications V, (20 September 1999); doi: 10.1117/12.363938
Show Author Affiliations
Wenyi Feng, Tsinghua Univ. (United States)
Yingbai Yan, Tsinghua Univ. (China)
Guofan Jin, Tsinghua Univ. (China)
Minxian Wu, Tsinghua Univ. (China)
Qingsheng He, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 3801:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications V
Francis T. S. Yu; Shizhuo Yin, Editor(s)

© SPIE. Terms of Use
Back to Top