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Taking correlation from 2D to 3D: optical methods and performance evaluation
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Paper Abstract

Correlation of two dimensional (2D) images using photorefractive materials are first reviewed. The performance of a joint transform correlator based on photorefractive beam coupling is analyzed by determining the dependence of typical figures of merit such as the discrimination ratio, peak-to-correlation plane energy ratio, peak-to-noise ratio, etc. on the photorefractive gain coefficient and beam power ratio using typical reference and signal images. Furthermore, correlation of three dimensional (3D) images is introduced as the correlation of their 2D digital holograms. Critical figures of merit used for assessment of 2D correlation of images are applied to the correlation of holograms.

Paper Details

Date Published: 13 May 2019
PDF: 7 pages
Proc. SPIE 10995, Pattern Recognition and Tracking XXX, 109950B (13 May 2019); doi: 10.1117/12.2520309
Show Author Affiliations
P. P. Banerjee, Univ. of Dayton (United States)
U. Abeywickrema, Univ. of Colombo (United States)
H. Zhou, Huazhong Univ. of Science and Technology (China)
B. Bordbar, Univ. of Dayton (United States)
M. Alam, Texas A&M Univ.-Kingsville (United States)
G. Nehmetallah, The Catholic Univ. of America (United States)
J. Khoury, Lartec, Inc. (United States)
L. Cao, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 10995:
Pattern Recognition and Tracking XXX
Mohammad S. Alam, Editor(s)

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