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Proceedings Paper

Rotation-invariant photorefractive correlator
Author(s): James Zhiqing Wen; Xiangyang Yang
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Paper Abstract

A rotation-invariant photorefractive correlation is reported in this paper. Matched filters synthesized with reference patterns at different rotational angles are stored in the photorefractive medium via angular and peristrophic multiplexing. During the recognition process, the input image is compared with all the reference patterns in parallel. The feasibility of the proposed correlator is demonstrated by experimental results.

Paper Details

Date Published: 25 October 1996
PDF: 8 pages
Proc. SPIE 2849, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications II, (25 October 1996); doi: 10.1117/12.255487
Show Author Affiliations
James Zhiqing Wen, Univ. of New Orleans (United States)
Xiangyang Yang, Univ. of New Orleans (United States)


Published in SPIE Proceedings Vol. 2849:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications II
Francis T. S. Yu; Shizhuo Yin, Editor(s)

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