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Volume: 29 | Article ID: art00054
Perceptual Navigation in Absorption-Scattering Space
  DOI :  10.2352/issn.2169-2629.2021.29.328  Published OnlineNovember 2021

Translucency optically results from subsurface light transport and plays a considerable role in how objects and materials appear. Absorption and scattering coefficients parametrize the distance a photon travels inside the medium before it gets absorbed or scattered, respectively. Stimuli produced by a material for a distinct viewing condition are perceptually non-uniform w.r.t. these coefficients. In this work, we use multi-grid optimization to embed a non-perceptual absorption-scattering space into a perceptually more uniform space for translucency and lightness. In this process, we rely on A (alpha) as a perceptual translucency metric. Small Euclidean distances in the new space are roughly proportional to lightness and apparent translucency differences measured with A. This makes picking A more practical and predictable, and is a first step toward a perceptual translucency space.

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Davit Gigilashvili, Philipp Urban, Jean-Baptiste Thomas, Marius Pedersen, Jon Yngve Hardeberg, "Perceptual Navigation in Absorption-Scattering Spacein Proc. IS&T 29th Color and Imaging Conf.,  2021,  pp 328 - 333,

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