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Proceedings Paper

Improvement to large-capacity pattern recognition using speckle modulation and suitable time schedule
Author(s): Qingsheng He; Yi Liao; Yunbo Guo; Liangcai Cao; Xiaosu Ma; Guofan Jin
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Paper Abstract

According to speckle modulation on the object beam of a volume holographic correlators, we show that the sidelobes of the correlation patterns along the vertical direction as well as those along the horizontal direction are well suppressed, so that the multiplexing space is markedly reduced and the channel density is largely increased. The experiment of 2030-page human faces correlated storage and recognition are presented, a very clear correlation spots array is achieved, and the recognition accuracy is better than 95%.

Paper Details

Date Published: 7 February 2005
PDF: 8 pages
Proc. SPIE 5636, Holography, Diffractive Optics, and Applications II, (7 February 2005); doi: 10.1117/12.580931
Show Author Affiliations
Qingsheng He, Tsinghua Univ. (China)
Yi Liao, Tsinghua Univ. (China)
Yunbo Guo, Tsinghua Univ. (China)
Liangcai Cao, Tsinghua Univ. (China)
Xiaosu Ma, Tsinghua Univ. (China)
Guofan Jin, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 5636:
Holography, Diffractive Optics, and Applications II
Yunlong Sheng; Dahsiung Hsu; Chongxiu Yu; Byoungho Lee, Editor(s)

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