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Measuring, Modeling, and Reproducing Material Appearance from Specular Profile

Tominaga, Shoji; Guarnera, Giuseppe Claudio
Journal article, Peer reviewed
Accepted version
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Tominaga (Locked)
URI
http://hdl.handle.net/11250/2636903
Date
2019
Metadata
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  • Institutt for datateknologi og informatikk [3877]
  • Publikasjoner fra CRIStin - NTNU [21000]
Original version
Final program and proceedings (Color and Imaging Conference). 2019, 279-283.   10.2352/issn.2169-2629.2019.27.50
Abstract
A method is proposed for measuring, modeling, and reproducing material appearance from the specular profile representing reflectance distribution around a specular highlight. Our method is aimed at opaque materials with a highly glossy surface like plastic, ceramic, and metals. Hence, the material surface is assumed to be not a perfect mirror, but a surface with some roughness. We do not use a gonio-spectrophometer nor an image-based measurement setup. Instead, we make use of a gloss meter with a function to measure the specular profile, containing for glossy materials appearance such as roughness, sharpness, and intensity. The surface reflection is represented as a linear sum of diffuse and specular reflection components, the latter described by the Cook-Torrance model. The specular function represents the glossy surface appearance by a small number of control parameters. Mitsuba rendering system is utilized to perform the rendering algorithms. Finally, the feasibility of the proposed method is examined using different materials.
Publisher
Society for Imaging Science and Technology
Journal
Final program and proceedings (Color and Imaging Conference)

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