Gigilashvili, DavitDavitGigilashviliUrban, PhilippPhilippUrbanThomas, Jean-BaptisteJean-BaptisteThomasPedersen, MariusMariusPedersenHardeberg, Jon YngveJon YngveHardeberg2022-03-152022-03-152021https://publica.fraunhofer.de/handle/publica/41308010.2352/issn.2169-2629.2021.29.3282-s2.0-85121256335Translucency 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.enLead Topic: Digitized WorkResearch Line: Computer graphics (CG)Research Line: Human computer interaction (HCI)Research Line: Modeling (MOD)translucencyperception006conference paper