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Proceedings Paper

Pattern Recognition Using Tandem Component Filter
Author(s): K. Chalasinska-Macukow; H. H. Arsenault
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Paper Abstract

The tandem component system consisting of two elements with pure phase structures, allows to carry out a general wave front modification with a theoretical light efficiency of 100%, independently of the object function (1). One of the applications of the tandem component are correlation type measurements (2,3). With the tandem component filter (TCF) it is possible to obtain an almost perfect peak in the out-put plane of the recognition system, with a 100% light efficiency. This filter does not give an exact correlation function. Similarly to the conventional matched spatial filtering (MSF), all information about Fourier transform of an object is used to recognize a target, but this operation is space-variant. Our goal was to analyse digitally the discrimination capability of the tandem component filter (TCF), compare the results with the results obtained with the use of the classical matched spatial filter (MSF) and the phase-only filter (POF), and to decide whether to place the tandem component filter in the class of filters with enhanced discrimination capability (like, for example, the phase-only filter), or not.

Paper Details

Date Published: 1 January 1987
PDF: 2 pages
Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967264
Show Author Affiliations
K. Chalasinska-Macukow, Warsaw University (Poland)
H. H. Arsenault, Universite Laval (Canada)

Published in SPIE Proceedings Vol. 0813:
Optics and the Information Age

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