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Optical Engineering

Optical generation of logarithmic harmonic filters for projection invariant pattern recognition
Author(s): Naim Konforti; David Mendlovic; Emanuel Marom
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Paper Abstract

Invariant pattern recognition systems are based on spatial filters that are in most cases computer-generated holograms. Logarithmic harmonics were suggested to be used in implementations that perform projection invariant pattern recognition. A novel approach for optical generation of logarithmic harmonic matched filters of a universal nature, usable for arbitrary input patterns, is presented, followed by some initial experimental results.

Paper Details

Date Published: 1 October 1992
PDF: 6 pages
Opt. Eng. 31(10) doi: 10.1117/12.59994
Published in: Optical Engineering Volume 31, Issue 10
Show Author Affiliations
Naim Konforti, Tel Aviv Univ. (Israel)
David Mendlovic, Tel Aviv Univ. (Israel)
Emanuel Marom, Symbol Technologies, Inc. (Israel)


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