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Proceedings Paper

Performance evaluation of photorefractive two-beam coupling joint transform correlator
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Paper Abstract

The performance of a novel joint transform correlator (JTC) based on photorefractive (PR) two-beam coupling (TBC) is analyzed by determining the dependence of relevant figures of merit such as the discrimination ratio, the peak-to-correlation plane energy ratio, and the peak-to-noise ratio on the PR gain coefficient and pump-probe beam ratio for a variety of reference and signal images. In this scheme, spatially separated reference and signal images constitute the pump, which transfers energy to a weak probe in a novel image processing setup where the PR polymer serves as the spatial filter in the Fourier plane.

Paper Details

Date Published: 5 May 2014
PDF: 12 pages
Proc. SPIE 9094, Optical Pattern Recognition XXV, 909409 (5 May 2014); doi: 10.1117/12.2054357
Show Author Affiliations
G. Nehmetallah, Univ. of Dayton (United States)
P. P. Banerjee, Univ. of Dayton (United States)
M. Alam, Univ. of South Alabama (United States)
J. Khoury, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 9094:
Optical Pattern Recognition XXV
David Casasent; Tien-Hsin Chao, Editor(s)

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