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Indices of polarimetric purity to enhance the image quality in biophotonics applications
Van Eeckhout, Albert (Universitat Autònoma de Barcelona. Departament de Física)
Lizana Tutusaus, Ángel (Universitat Autònoma de Barcelona. Departament de Física)
Garcia Caurel, Enric (Université Paris-Saclay. École Polytechnique)
Gil, Jose J. (Universidad de Zaragoza)
Sansa, Adrià (Universitat Autònoma de Barcelona. Departament de Física)
Rodríguez, Carla (Universitat Autònoma de Barcelona. Departament de Física)
Estévez, Irene (Universitat Autònoma de Barcelona. Departament de Física)
González, Emilio (Universidad Autónoma de Madrid)
Zhang, Haolin (Universitat Autònoma de Barcelona. Departament de Física)
Escalera Merino, Juan Carlos (Universitat Autònoma de Barcelona. Departament de Física)
Ossikovski, Razvigor (Université Paris-Saclay. École Polytechnique)
Moreno, Ignacio (Universidad Miguel Hernández de Elche)
Campos Coloma, Juan (Universitat Autònoma de Barcelona. Departament de Física)

Fecha: 2018
Resumen: Recently, a set of polarimetric indicators, the Indices of Polarimetric Purity (IPPs), were described in the literature. These indicators allow synthesize depolarization content of samples, and provide further analysis of depolarizers than other existing polarimetric indicators. We demonstrate the potential of the IPPs as a criterion to characterize and classify depolarizing samples. In particular, the method is firstly analyzed through a series of basic polarization experiments, and we prove how differences in the depolarizing capability of samples, concealed from the commonly used depolarization index P∆, are identified with the IPPs. In the second part of this work, the method is experimentally highlighted by studying a rabbit leg ex-vivo sample. The obtained images of the ex-vivo sample illustrate how IPPs provide a significant enhancement in the image contrast of some biological tissues and, in some cases, present new information hidden in the usual polarimetric channels. Moreover, new physical interpretation of the sample can be derived from the IPPs which allow us to synthesize the depolarization behavior. Finally, we also propose a pseudo-colored encoding of the IPPs information that provides an improved visualization of the samples. This last technique opens the possibility to highlight a specific tissue structure by properly adjusting the pseudo-colored formula.
Nota: Ponència presentada a: Biophotonics: Photonic Solutions for Better Health Care (Strasbourg, France: 6th, 22-26 April 2018)
Nota: Número d'acord de subvenció MINECO/FIS2015-66328-C3-1-R
Nota: Número d'acord de subvenció MINECO/FIS2015-66328-C3-3-R
Nota: Número d'acord de subvenció AGAUR/2014/SGR-1639
Derechos: Tots els drets reservats.
Lengua: Anglès.
Documento: article ; recerca ; acceptedVersion
Materia: Depolarization ; Biological tissue ; Mueller matrix ; Polarimetry ; Imaging ; Materials characterization
Publicado en: Proceedings of SPIE, Vol. 10685 (May 2018) , ISSN 0277-786X

DOI: 10.1117/12.2309375


13 p, 7.1 MB

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Artículos > Artículos de investigación
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 Registro creado el 2018-05-28, última modificación el 2019-01-24



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