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Proceedings Paper

Optical calculation of correlation filters
Author(s): Jerome Knopp; Stanley E. Monroe Jr.
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Paper Abstract

A method is presented for designing optical correlation filters based on measuring intensity patterns in the Fourier plane. The method can be used in general to design any type of frequency plane filter but is especially attractive in the case of a binary phase only filter (BPOF). The method can produce a filter that is well matched to both the object, its transforming optical system and the spatial light modulator used in the correlator input plane. A working filter was produced using the technique, but the filter response was weak. The suspected causes of the weak output are imprecise Fourier plane positioning, nonlinearities in the recording process, and/or aliasing effects.

Paper Details

Date Published: 1 September 1990
PDF: 8 pages
Proc. SPIE 1295, Real-Time Image Processing II, (1 September 1990); doi: 10.1117/12.21225
Show Author Affiliations
Jerome Knopp, Univ. of Missouri/Columbia (United States)
Stanley E. Monroe Jr., Lockheed Engineering and Sciences Co. (United States)

Published in SPIE Proceedings Vol. 1295:
Real-Time Image Processing II
Richard D. Juday, Editor(s)

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