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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 17 — Jun. 10, 2002
  • pp: 3453–3460

Reduction of the correlation sensitivity to the changes of the input illumination by a post processing based on the correlation statistics

Christophe Minetti, Frank Dubois, and Jean-Claude Legros  »View Author Affiliations


Applied Optics, Vol. 41, Issue 17, pp. 3453-3460 (2002)
http://dx.doi.org/10.1364/AO.41.003453


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Abstract

Linear-correlation amplitude changes when the intensity level of the input image is modified. As recognition is often based on the correlation-peak level, a change of the input illumination may result in a false recognition. We propose an illumination-change compensation by a post processing of the correlation distribution that is based on statistical measures of the correlation histograms. The theoretical background and simulation results are provided in the frame of an actual application in biology.

© 2002 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.5010) Image processing : Pattern recognition

History
Original Manuscript: August 23, 2001
Revised Manuscript: January 4, 2002
Published: June 10, 2002

Citation
Christophe Minetti, Frank Dubois, and Jean-Claude Legros, "Reduction of the correlation sensitivity to the changes of the input illumination by a post processing based on the correlation statistics," Appl. Opt. 41, 3453-3460 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-17-3453


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