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Proceedings Paper

Statistical processing of polarization diversity images
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Paper Abstract

Polarization diversity active imaging techniques have the appealing fea­ture of revealing contrasts that do not appear in conventional intensity im­ages. However, the intensity images provided by the system are in general not useful due to their perturbation by atmospheric turbulence and spatial inhomogeneity of laser sources. It is thus preferable to process only the im­age that represents the degree of polarization (DOP) of the reflected light. In this chapter, the analysis will be devoted to the particular case of purely de­polarizing materials which are defined by their property of having diagonal coherency matrices whatever the incident state of polarization. We discuss some statistical results of the "Orthogonal State Contrast Image" (OSCI) which is nothing but the degree of polarization when the coherency matrix is diagonal. We also analyze some estimation properties useful for image processing. These results are illustrated on target detection and segmentation processing tasks. We demonstrate that simple but still very efficient algo­rithms can be developed.

Paper Details

Date Published: 30 November 2001
PDF: 27 pages
Proc. SPIE 10302, Optoelectronic Information Processing: Optics for Information Systems: A Critical Review, 103020E (30 November 2001); doi: 10.1117/12.449676
Show Author Affiliations
Philippe Refregier, Ecole Nationale Superieure de Physique de Marseille (France)
Francois Goudail, Ecole Nationale Superieure de Physique de Marseille (France)


Published in SPIE Proceedings Vol. 10302:
Optoelectronic Information Processing: Optics for Information Systems: A Critical Review
Philippe Refregier; Bahram Javidi; Carlos Ferreira; Santiago Vallmitjana, Editor(s)

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