Název: Towards Effective Measurement and Interpolation of Bidirectional Texture Functions
Autoři: Filip, Jiří
Typ dokumentu: Výzkumné zprávy
Rok: 2011
Jazyk: eng
Edice: Research Report, svazek: 2298
Abstrakt: Bidirectional texture function (BTF) is acquired by taking thousands of material surface images for different illumination and viewing directions. This function, provided it is measured accurately, is typically exploited for visualization of material appearance in visual accuracy demanding applications. However, accurate measurement of the BTF is time and resources demanding task. While the sampling of illumination and viewing directions is in all known measurement systems done uniformly, we believe that to be more effective the sampling should be tailored specifically to reflectance properties of materials to be measured. Hence, we introduce a novel method of sparse BTF sampling. The method starts with collecting information about material visual behavior by means of small initial subset of reflectance samples measurement and analysis. This information is fed into our heuristic algorithm producing sparse material dependent sampling that is consequently used for BTF measurement and interpolation.
Klíčová slova: bidirectional texture function; illumination; measurement systems
Číslo projektu: CEZ:AV0Z10750506 (CEP), 306, 387, 239294, GA102/08/0593 (CEP), 103/11/0335
Poskytovatel projektu: fond rozvoje sdružení CESNET, fond rozvoje sdružení CESNET, GA ČR, GA ČR

Instituce: Ústav teorie informace a automatizace AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0196827

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-42753


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav teorie informace a automatizace
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