Composite harmonics joint transform correlator for tilt invariant pattern recognition

David Mendlovic, Meir Deutsch, Naim Konforti, Emanuel Marom

Research output: Contribution to journalArticlepeer-review

Abstract

The joint transform correlator (JTC) operation has been extended to include complex reference images. Such amplitude and phase images are common when using a single harmonic (circular, radial, logarithmic, etc.) in correlation setups or when implementing composite filters. The analysis of an aspect view (tilt) invariant pattern recognition system, using logarithmic harmonics decomposition, JTC principles and composite filter techniques, is described followed by experimental results that can be obtained in real time.

Original languageEnglish
Pages (from-to)273-279
Number of pages7
JournalOptics Communications
Volume79
Issue number5
DOIs
StatePublished - 1 Nov 1990

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