Abstract

We introduce a two-dimensional interleaving method to improve the output accuracy of volume holographic correlators. The method redistributes the pattern of every input and stored image without changing their inner products, so it can eliminate the impact of correlation pattern difference on calculated inner product values. Experimental tests show that this method can achieve more accurate output intensity for every channel, which agrees much better with the theoretical value than without this method.

© 2007 Optical Society of America

Calibration method for inner product calculation by the volume holographic correlator with randomly interleaved images

Shunli Wang, Liangcai Cao, Tianxiang Zheng, Tian Zhao, Qingsheng He, and Guofan Jin
Appl. Opt. 51(10) 1558-1565 (2012)

Phase-modulated multigroup volume holographic correlator

Kai Ni, Wei Ren, Zongyao Qu, Liangcai Cao, Qingsheng He, and Guofan Jin
Opt. Lett. 33(10) 1144-1146 (2008)

Fast associative filtering based on two-dimensional discrete Walsh transform by a volume holographic correlator

Qiang Ma, Kai Ni, Qingsheng He, Liangcai Cao, and Guofan Jin
Opt. Express 17(2) 838-843 (2009)

Improvement to human-face recognition in a volume holographic correlator by use of speckle modulation

Liangcai Cao, Qingsheng He, Chuan Ouyang, Yi Liao, and Guofan Jin
Appl. Opt. 44(4) 538-545 (2005)

Channel analysis of the volume holographic correlator for scene matching

Shunli Wang, Liangcai Cao, Huarong Gu, Qingsheng He, Claire Gu, and Guofan Jin
Opt. Express 19(5) 3870-3880 (2011)