MSAR BTF Model

0389560 - ÚTIA 2014 CZ eng K - Conference Paper (Czech conference)
Havlíček, Michal
MSAR BTF Model.
Doktorandské Dny 2011. Praha: FJFI ČVUT, 2011 - (Ambrož, P.; Masáková, Z.), s. 47-56. ISBN 978-80-01-04907-5.
[Doktorandské Dny 2011. Praha (CZ), 11.11.2011-25.11.2011]
R&D Projects: GA ČR GA102/08/0593
Grant - others:CESNET(CZ) 387/2010; GA ČR(CZ) GA103/11/0335
Institutional research plan: CEZ:AV0Z10750506
Keywords : BTF * texture analysis * texture synthesis * data compression * virtual reality
Subject RIV: BD - Theory of Information
http://library.utia.cas.cz/separaty/2013/RO/havlicek-msar btf model.pdf

The Bidirectional Texture Function (BTF) is the recent most advanced representation of material surface visual properties. BTF specifies the changes of visual appearance due to varying illumination and viewing conditions. Such a function might be represented by thousands of images of surface taken in given illumination and viewing conditions per sample of the material. Resulting BTF size, hundreds of gigabytes, excludes its direct rendering in graphical applications, accordingly some compression of these data is obviously necessary. This paper presents a novel probabilistic model based algorithm for realistic multispectral BTF texture modelling. This complex but efficient method combines several multispectral band limited spatial factors and corresponding range map to produce the required BTF texture. Proposed scheme enables very high BTF texture compression ratio and in addition may be used to reconstruct BTF space i.e. non-measured parts of the BTF space.
Permanent Link: http://hdl.handle.net/11104/0221736