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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 17, Iss. 11 — Nov. 1, 2000
  • pp: 1982–1992

Optimal processors for images with an arbitrary number of gray levels

Henrik Sjöberg and Bertrand Noharet  »View Author Affiliations


JOSA A, Vol. 17, Issue 11, pp. 1982-1992 (2000)
http://dx.doi.org/10.1364/JOSAA.17.001982


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Abstract

We present a new group of processors, optimal in a maximum-likelihood sense, for target location in images with a discrete number of gray levels. The discrete gray-level distribution can be of any arbitrary form. We compare the performance of the processor derived for five discrete levels with the performance of a processor derived for a continuous Gaussian distribution and show that there are cases when only the processor derived for discrete levels will exhibit satisfactory performance. We give an explanation of this difference based on moment analysis and show how the correlation orders are related to statistical moments of the input scene.

© 2000 Optical Society of America

OCIS Codes
(100.4550) Image processing : Correlators
(100.5010) Image processing : Pattern recognition

History
Original Manuscript: September 8, 1999
Revised Manuscript: April 13, 2000
Manuscript Accepted: April 13, 2000
Published: November 1, 2000

Citation
Henrik Sjöberg and Bertrand Noharet, "Optimal processors for images with an arbitrary number of gray levels," J. Opt. Soc. Am. A 17, 1982-1992 (2000)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-11-1982


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