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Capturing Material Visualization Data using Goniometers
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SYSNO ASEP 0462398 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Capturing Material Visualization Data using Goniometers Author(s) Filip, Jiří (UTIA-B) RID, ORCID
Vávra, Radomír (UTIA-B) RID, ORCID
Haindl, Michal (UTIA-B) RID, ORCIDNumber of authors 3 Source Title Proceedings of the 4th CIE Expert Symposium on Colour and Visual Appearance. - Vienna : Commission Internationale de L'Eclairage CIE Central Bureau, 2016 - ISBN 978-3-902842-59-6 Pages s. 121-127 Number of pages 8 s. Publication form Medium - C Action The 4th CIE Expert Symposium on Colour and Visual Appearance Event date 06.09.2016-07.09.2016 VEvent location Praha Country CZ - Czech Republic Event type WRD Language eng - English Country AT - Austria Keywords texture ; material appearance ; BTF ; measurement setup ; portable Subject RIV BD - Theory of Information R&D Projects GA14-02652S GA ČR - Czech Science Foundation (CSF) Institutional support UTIA-B - RVO:67985556 Annotation Reproduction of the appearance of real-world materials in virtual environments has been one of the ultimate challenges of computer graphics. The required material representations depend on the complexity of the material's appearance. They start with a bidirectional reflectance distribution function (BRDF) describing distribution of energy reflected in the viewing direction when illuminated from a specific direction. As the BRDF cannot capture a material's spatial structure, it has been extended to a more general bidirectional texture function (BTF) capturing non-local effects in rough material structures, such as occlusions, masking, sub-surface scattering, or inter-reflections. A monospectral BTF is a six-dimensional function representing the material appearance at each surface point for variable illumination and view directions, parameterized by elevation and azimuthal angles. This paper describes application of gonioreflectometrs for capturing BTF for material visualization purposes. Workplace Institute of Information Theory and Automation Contact Markéta Votavová, votavova@utia.cas.cz, Tel.: 266 052 201. Year of Publishing 2017
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