Share Email Print
cover

Journal of Biomedical Optics

Comparative study of differential matrix and extended polar decomposition formalisms for polarimetric characterization of complex tissue-like turbid media
Author(s): Satish Kumar; Harsh Purwar; Razvigor Ossikovski; I. Alex Vitkin; Nirmalya Ghosh
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Development of methodologies for quantification/unique interpretation of the intrinsic polarimetry characteristics of biological tissues are important for various applications involving tissue characterization/diagnosis. A detailed comparative evaluation of the polar decomposition and the differential matrix decomposition of Mueller matrices for extraction/quantification of the intrinsic polarimetry characteristics (with special emphasis on linear retardance δ , optical rotation Ψ and depolarization Δ parameters was performed, because these are the most prominent tissue polarimetry effects) from complex tissue-like turbid media exhibiting simultaneous scattering and polarization effects. The results suggest that for media exhibiting simultaneous linear retardance and optical rotation polarization events, the use of retarder polar decomposition with its associated analysis which assumes sequential occurrence of these effects, results in systematic underestimation of δ and overestimation of Ψ parameters. Analytical relationships between the polarization parameters (δ , Ψ ) extracted from both the retarder polar decomposition and the differential matrix decomposition for either simultaneous or sequential occurrence of the linear retardance and optical rotation effects were derived. The self-consistency of both decompositions is validated on experimental Mueller matrices recorded from tissue-simulating phantoms (whose polarization properties are controlled, known a-priori, and exhibited simultaneously) of increasing biological complexity. Additional theoretical validation tests were performed on Monte Carlo-generated Mueller matrices from analogous turbid media exhibiting simultaneous depolarization (Δ ), linear retardance (δ ) and optical rotation (Ψ ) effects.

Paper Details

Date Published: 12 October 2012
PDF: 12 pages
J. Biomed. Opt. 17(10) 105006 doi: 10.1117/1.JBO.17.10.105006
Published in: Journal of Biomedical Optics Volume 17, Issue 10
Show Author Affiliations
Satish Kumar, Indian Institute of Science Education and Research Kolkata (India)
Harsh Purwar, Indian Institute of Science Education and Research Kolkata (India)
Razvigor Ossikovski, Ecole Polytechnique (France)
I. Alex Vitkin, Ontario Cancer Institute (Canada)
Nirmalya Ghosh, Indian Institute of Science Education and Research Kolkata (India)


© SPIE. Terms of Use
Back to Top