Imaging Components, Systems, and Processing

Modified polarimetric bidirectional reflectance distribution function with diffuse scattering: surface parameter estimation

[+] Author Affiliations
Hanyu Zhan, David G. Voelz

New Mexico State University, Klipsch School of Electrical and Computer Engineering, Las Cruces, New Mexico 88003, United States

Opt. Eng. 55(12), 123103 (Dec 08, 2016). doi:10.1117/1.OE.55.12.123103
History: Received August 30, 2016; Accepted November 11, 2016
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Abstract.  The polarimetric bidirectional reflectance distribution function (pBRDF) describes the relationships between incident and scattered Stokes parameters, but the familiar surface-only microfacet pBRDF cannot capture diffuse scattering contributions and depolarization phenomena. We propose a modified pBRDF model with a diffuse scattering component developed from the Kubelka–Munk and Le Hors et al. theories, and apply it in the development of a method to jointly estimate refractive index, slope variance, and diffuse scattering parameters from a series of Stokes parameter measurements of a surface. An application of the model and estimation approach to experimental data published by Priest and Meier shows improved correspondence with measurements of normalized Mueller matrix elements. By converting the Stokes/Mueller calculus formulation of the model to a degree of polarization (DOP) description, the estimation results of the parameters from measured DOP values are found to be consistent with a previous DOP model and results.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Hanyu Zhan and David G. Voelz
"Modified polarimetric bidirectional reflectance distribution function with diffuse scattering: surface parameter estimation", Opt. Eng. 55(12), 123103 (Dec 08, 2016). ; http://dx.doi.org/10.1117/1.OE.55.12.123103


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