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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. 20, Iss. 9 — Sep. 1, 2003
  • pp: 1725–1738

Validating the use of channels to estimate the ideal linear observer

Brandon D. Gallas and Harrison H. Barrett  »View Author Affiliations


JOSA A, Vol. 20, Issue 9, pp. 1725-1738 (2003)
http://dx.doi.org/10.1364/JOSAA.20.001725


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Abstract

Image quality can be objectively defined according to how well an observer can perform a task of practical interest given the image. We review a practical model observer for the signal-detection task. The ideal observer for this task is a function of the image probability distributions, which are multidimensional and complicated. This observer is often too difficult to derive or estimate. An alternative to the ideal observer is the ideal linear observer, which can still be unmanageable. Our alternative is the ideal linear observer constrained to a small set of channels: the channelized-Hotelling observer.

© 2003 Optical Society of America

OCIS Codes
(110.2960) Imaging systems : Image analysis
(110.2970) Imaging systems : Image detection systems
(110.3000) Imaging systems : Image quality assessment

History
Original Manuscript: December 30, 2002
Revised Manuscript: April 23, 2003
Manuscript Accepted: April 23, 2003
Published: September 1, 2003

Citation
Brandon D. Gallas and Harrison H. Barrett, "Validating the use of channels to estimate the ideal linear observer," J. Opt. Soc. Am. A 20, 1725-1738 (2003)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-20-9-1725

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