26 September 2016 Analysis of wave optics BRDF model elements for a moderately rough surface
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Abstract
The bidirectional reflectance distribution function (BRDF) describes realistic scattering of light off materials. Microfacet BRDF’s often only describe one type of material and neglect wavelength effects. Wave-optics BRDF expressions, however, can describe wavelength effects at the expense of being more computationally cumbersome. Previous work relating wave-optics BRDF coordinates to micro-facet coordinates led to a complicated, but versatile, BRDF. In this work, the infinite summation found in the previous derivation is investigated, leading toward a closed-form BRDF model that describes wavelength-dependent effects for materials with various surface parameters, and which will be usable in remote sensing applications.
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Samuel E. Freda, Samuel E. Freda, Samuel D. Butler, Samuel D. Butler, Stephen E. Nauyoks, Stephen E. Nauyoks, Michael A. Marciniak, Michael A. Marciniak, "Analysis of wave optics BRDF model elements for a moderately rough surface", Proc. SPIE 9961, Reflection, Scattering, and Diffraction from Surfaces V, 99610G (26 September 2016); doi: 10.1117/12.2238118; https://doi.org/10.1117/12.2238118
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