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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

  • Editor: Stephen A. Burns
  • Vol. 25, Iss. 2 — Feb. 1, 2008
  • pp: 483–492

Precision of moment-based estimation of the degree of polarization in coherent imagery without polarization device

Julien Fade, Muriel Roche, and Philippe Réfrégier  »View Author Affiliations


JOSA A, Vol. 25, Issue 2, pp. 483-492 (2008)
http://dx.doi.org/10.1364/JOSAA.25.000483


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Abstract

We propose and analyze a statistical method to estimate the degree of polarization of light from a single speckle intensity image by analyzing the statistical distribution of the light intensity. The optimal precision of such an estimation method is evaluated by computing the Cramer–Rao bounds for several speckle degrees. Two moment-based estimators of the square degree of polarization are introduced and characterized. For the first time to our knowledge, it is shown theoretically and through simulations that the estimators are almost efficient for high orders of speckle. The robustness of the method is discussed for the case when the intensity fluctuations do not follow the standard speckle model.

© 2008 Optical Society of America

OCIS Codes
(030.4280) Coherence and statistical optics : Noise in imaging systems
(030.6140) Coherence and statistical optics : Speckle
(100.0100) Image processing : Image processing
(120.6150) Instrumentation, measurement, and metrology : Speckle imaging

ToC Category:
Coherence and Statistical Optics

History
Original Manuscript: October 5, 2007
Manuscript Accepted: November 24, 2007
Published: January 30, 2008

Citation
Julien Fade, Muriel Roche, and Philippe Réfrégier, "Precision of moment-based estimation of the degree of polarization in coherent imagery without polarization device," J. Opt. Soc. Am. A 25, 483-492 (2008)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-25-2-483

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