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The proposed method acquires subsurface-scattering parameters of heterogeneous translucent materials. It directly obtains dense per-surface-point scattering parameters from observations under cross-polarized spherical-gradient illumination of curved surfaces. This method does not require explicit fitting of observed scattering profiles. A variety of heterogeneous translucent objects illustrate its validity.
Rendering (computer graphics), Materials, Approximation, Scattering parameters, Linear approximation, Surface treatment

Yufeng Zhu, P. Garigipati, P. Peers, P. Debevec and A. Ghosh, "Estimating Diffusion Parameters from Polarized Spherical-Gradient Illumination," in IEEE Computer Graphics and Applications, vol. 33, no. 3, pp. 34-43, 2013.
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