Original title: Extended Bidirectional Texture Function Moving Average Model
Authors: Havlíček, Michal
Document type: Papers
Conference/Event: Doktorandské dny 2015, Praha (CZ), 2015-11-20,2015-11-27
Year: 2015
Language: eng
Abstract: The bidirectional texture function (BTF) is the recent most advanced representation of visual properties of material surface. It specifies its appearance due to varying spatial, illumination, and viewing conditions. Corresponding enormous BTF measurements require compact mathematical representation for visual fidelity preserving compression. We present a novel BTF model based on a set of underlying three dimensional moving average random field (3D MA RF) models. 3D MA assumes the texture considered as a product of a convolution of an uncorrelated three dimensional random field with a three dimensional filter which completely characterizes the texture. The BTF model combines several spatial factors, subsequently factorized into a set of 3D MA representations, and range map to produce the required BTF texture. This enables high BTF space compression ratio, unrestricted texture enlargement, and reconstruction of unmeasured parts of the BTF space. We also compare proposed model with its simpler two dimensional variant in terms of colour distribution fidelity.
Keywords: Bidirectional texture function; moving average random field model
Host item entry: Doktorandské dny 2015

Institution: Institute of Information Theory and Automation AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://library.utia.cas.cz/separaty/2016/RO/havlicek-0455325.pdf
Original record: http://hdl.handle.net/11104/0257088

Permalink: http://www.nusl.cz/ntk/nusl-202697


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