Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Estimation of the degree of polarization of coherent light in the presence of uniform and nonuniform illumination

Not Accessible

Your library or personal account may give you access

Abstract

We address estimation of the degree of polarization (DOP) in active images acquired under coherent light when the coherency matrix of the backscattered light is diagonal. We consider cases when the illumination intensity is uniform on the scene and when it is not, and we take into account different parametrizations of the DOP. In all cases, we determine the maximum-likelihood (ML) estimators and compare their variances with the Cramer–Rao lower bound for unbiased estimation. When illumination is not uniform, the ML estimators are solutions of equations that have to be solved numerically. We show that simpler estimators based on the trimmed mean make it possible to approach performance of ML estimators at lower computational cost.

© 2006 Optical Society of America

Full Article  |  PDF Article
More Like This
Degree of polarization estimation in the presence of nonuniform illumination and additive Gaussian noise

Arnaud Bénière, François Goudail, Mehdi Alouini, and Daniel Dolfi
J. Opt. Soc. Am. A 25(4) 919-929 (2008)

Cramer–Rao lower bounds on the estimation of the degree of polarization in coherent imaging systems

Nicolas Roux, François Goudail, and Philippe Réfrégier
J. Opt. Soc. Am. A 22(11) 2532-2541 (2005)

Estimation of the degree of polarization in active coherent imagery by using the natural representation

Philippe Réfrégier, François Goudail, and Nicolas Roux
J. Opt. Soc. Am. A 21(12) 2292-2300 (2004)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (38)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved