Predicting Environment Illumination Effects on Material Appearance

0384222 - ÚTIA 2013 RIV US eng C - Conference Paper (international conference)
Filip, Jiří - Haindl, Michal - Stančík, J.
Predicting Environment Illumination Effects on Material Appearance.
Proceedings of the 21st International Conference on Pattern Recognition (ICPR2012). Piscataway: IEEE Press, 2012, s. 2075-2078. ISBN 978-1-4673-2216-4.
[ICPR 2012 - The 21st International Conference on Pattern Recognition. Tsukuba (JP), 11.11.2012-15.11.2012]
R&D Projects: GA ČR GAP103/11/0335; GA ČR GA102/08/0593
Grant - others:Evropska komise(BE) EC Marie Curie ERG 239294; CESNET(CZ) 409
Institutional support: RVO:67985556
Keywords : Illumination perception * texture * BTF
Subject RIV: BD - Theory of Information
http://library.utia.cas.cz/separaty/2012/RO/filip-predicting environment illumination effects on material appearance.pdf

Environment illumination is a key to achieving a realistic visualization of material appearance. One way to achieve such an illumination is an approximation by rendering of the material surface lit by a finite set of point light sources. In this paper we employed visual psychophysics to identify a minimal number of point light sources approximating realistic illumination. Furthermore, we analyzed stimuli images and correlation of their statistics with obtained psychophysical data. Finally, image statistics were identified which can predict such a minimal environment representation for three tested materials, depending on the visual properties of the illumination environment.
Permanent Link: http://hdl.handle.net/11104/0007450