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Optical Engineering

Single-output color pattern recognition using a fractional correlator
Author(s): Zeev Zalevsky; Ido Raveh; Gal Shabtay; David Mendlovic; Javier Garcia
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Paper Abstract

A novel method for performing color image pattern recognition using a fractional correlator (FC) is proposed. The input plane is illuminated with three different coherent sources of wavelengths corresponding to RGB (red, green, and blue) colors. The output plane provides a single output peak, which is a result of an incoherent addition between the three correlations obtained per each color. By using the fractional correlator, which is a partially space variant correlator, we achieve space-variance-controlled color pattern recognition. The use of the three-color illumination can drastically increase the discrimination ability of the suggested correlator.

Paper Details

Date Published: 1 August 1997
PDF: 10 pages
Opt. Eng. 36(8) doi: 10.1117/1.601428
Published in: Optical Engineering Volume 36, Issue 8
Show Author Affiliations
Zeev Zalevsky, Tel Aviv Univ. (Israel)
Ido Raveh, Tel Aviv Univ. (Israel)
Gal Shabtay, Tel Aviv Univ. (Israel)
David Mendlovic, Tel Aviv Univ. (Israel)
Javier Garcia, Univ. de Valencia (Spain)

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