Improvement to large-capacity pattern recognition using speckle modulation and suitable time schedule

Qingsheng He; Yi Liao; Yunbo Guo; Liangcai Cao; Xiaosu Ma; Guofan Jin

doi:10.1117/12.580931

7 February 2005 Improvement to large-capacity pattern recognition using speckle modulation and suitable time schedule

Qingsheng He, Yi Liao, Yunbo Guo, Liangcai Cao, Xiaosu Ma, Guofan Jin

Proceedings Volume 5636, Holography, Diffractive Optics, and Applications II; (2005) https://doi.org/10.1117/12.580931
Event: Photonics Asia, 2004, Beijing, China

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%.

Citation Download Citation

Qingsheng He, Yi Liao, Yunbo Guo, Liangcai Cao, Xiaosu Ma, and Guofan Jin "Improvement to large-capacity pattern recognition using speckle modulation and suitable time schedule", Proc. SPIE 5636, Holography, Diffractive Optics, and Applications II, (7 February 2005); https://doi.org/10.1117/12.580931

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