Estimation of surface spectral reflectance of inhomogeneous objects

Shoji Tominaga; Brian A. Wandell

doi:10.1117/12.20009

1 January 1990 Estimation of surface spectral reflectance of inhomogeneous objects

Shoji Tominaga, Brian A. Wandell

Proceedings Volume 1260, Sensing and Reconstruction of Three-Dimensional Objects and Scenes; (1990) https://doi.org/10.1117/12.20009
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

This paper describes a method for estimating the surface spectral reflectance function of inhomogeneous objects. The standard reflectance model for inhomogeneous materials suggests that surface reflectance functions can be described as the sum of a constant (specular) function and a subsurface ( diffuse) function. First we present an algorithm to generate an illuminant estimate without using a reference white standard. Next we show that several physical constraints on the reflectance functions can be used to estimate the subsurface component. A band of the estimated spectral reflectance functions is recovered as possible solutions for the subsurface component.

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Shoji Tominaga and Brian A. Wandell "Estimation of surface spectral reflectance of inhomogeneous objects", Proc. SPIE 1260, Sensing and Reconstruction of Three-Dimensional Objects and Scenes, (1 January 1990); https://doi.org/10.1117/12.20009

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KEYWORDS

Reflectivity

Interfaces

Reflection

Lamps

Light sources

Metals

3D modeling

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