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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 29, Iss. 32 — Nov. 10, 1990
  • pp: 4784–4789

Shift and projection invariant pattern recognition using logarithmic harmonics

David Mendlovic, Naim Konforti, and Emanuel Marom  »View Author Affiliations


Applied Optics, Vol. 29, Issue 32, pp. 4784-4789 (1990)
http://dx.doi.org/10.1364/AO.29.004784


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Abstract

Optical correlation schemes based on a matched filter containing a single logarithmic harmonic of an object are described. This correlator can provide shift and projection (tilt) invariant pattern recognition. The logarithmic harmonics, their orthogonality, and their completeness are presented, as well as experimental results using computer simulations and real optical targets. The projection invariance and the discrimination ability of this filter are successfully demonstrated.

© 1990 Optical Society of America

History
Original Manuscript: June 12, 1989
Published: November 10, 1990

Citation
David Mendlovic, Naim Konforti, and Emanuel Marom, "Shift and projection invariant pattern recognition using logarithmic harmonics," Appl. Opt. 29, 4784-4789 (1990)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-29-32-4784

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