Authors
Craig Donner, Henrik Wann Jensen
University of California, San Diego
Portals
Summary
This paper developed an analytical spectral shading model for human skin. The proposed model accounts for both subsurface and surface scattering by controlling the amount of oil, melanin (epidermis), and hemoglobin (dermis).
Abstract
We have developed an analytical spectral shading model for human skin. Our model accounts for both subsurface and surface scattering. To simulate the interaction of light with human skin, we have narrowed the number of necessary parameters down to just four, controlling the amount of oil, melanin, and hemoglobin, which makes it possible to match specific skin types. Using these physicallybased parameters we generate custom spectral diffusion profiles for a two-layer skin model (shown in the top left figure) that account for subsurface scattering within the skin. We use the diffusion profiles in combination with a Torrance-Sparrow model for surface scattering to simulate the reflectance of the specific skin type.