Počet záznamů: 1
Towards Effective Measurement and Interpolation of Bidirectional Texture Functions
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SYSNO ASEP 0358919 Druh ASEP V - Výzkumná zpráva Zařazení RIV Záznam nebyl označen do RIV Název Towards Effective Measurement and Interpolation of Bidirectional Texture Functions Tvůrce(i) Filip, Jiří (UTIA-B) RID, ORCID Vyd. údaje Praha: ÚTIA AV ČR, v.v.i, 2011 Edice Research Report Č. sv. edice 2298 Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova bidirectional texture function ; measurement systems ; illumination Vědní obor RIV BD - Teorie informace CEP GA102/08/0593 GA ČR - Grantová agentura ČR 103/11/0335 GA ČR - Grantová agentura ČR CEZ AV0Z10750506 - UTIA-B (2005-2011) Anotace 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. Pracoviště Ústav teorie informace a automatizace Kontakt Markéta Votavová, votavova@utia.cas.cz, Tel.: 266 052 201. Rok sběru 2012
Počet záznamů: 1