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Proceedings Paper

Lensless 2D correlation experiments
Author(s): Alastair D. McAulay; Junqing Wang
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Paper Abstract

Converging light is used for a reference beam in constructing the Fourier transform of a filter for use in a 2-D correlator. This eliminates the need for the inverse Fourier transform lens used for performing correlation. We analyze this approach and demonstrate correct performance with optical experiments. Further, we propose a compact optical correlator system that uses only one curved element for both constructing filters and performing correlation.

Paper Details

Date Published: 25 October 1993
PDF: 5 pages
Proc. SPIE 1959, Optical Pattern Recognition IV, (25 October 1993); doi: 10.1117/12.160311
Show Author Affiliations
Alastair D. McAulay, Lehigh Univ. (United States)
Junqing Wang, Lehigh Univ. (United States)

Published in SPIE Proceedings Vol. 1959:
Optical Pattern Recognition IV
David P. Casasent, Editor(s)

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