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Paper Abstract and Keywords
Presentation 2017-03-14 11:45
Improving Bivariate BRDF Measurement by Optimizing Light Directions
Taisuke Hashimoto, Yoshihiro Kanamori, Yuki Endo, Jun Mitani (Univ. of Tsukuba)
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a method for measuring reflectance with a simple setup based on bivariate BRDF, a simplified version of BRDF. Most measurement methods require large systems for illuminating target objects from various lighting directions. Our method reduces the number of lights by finding light directions suited for a target shape via combinatorial optimization. We also reduce artifacts occurring when recording reflectance, which stem from the narrow representation domain of bivariate BRDF. We further reduce the impact of clustering errors in case of objects containing multiple materials. In summary, we demonstrate our method can capture reflectance more accurately with less lights.
Keyword (in Japanese) (See Japanese page) 
(in English) BRDF Measurement / Bivariate BRDF / Light Direction Optimization / / / / /  
Reference Info. ITE Tech. Rep., vol. 41, pp. 41-44, March 2017.
Paper #  
Date of Issue 2017-03-07 (AIT) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2017-03-14 - 2017-03-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Ochanomizu Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To AS 
Conference Code 2017-03-AIT-IIEEJ-AS-ARTS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improving Bivariate BRDF Measurement by Optimizing Light Directions 
Sub Title (in English)  
Keyword(1) BRDF Measurement  
Keyword(2) Bivariate BRDF  
Keyword(3) Light Direction Optimization  
1st Author's Name Taisuke Hashimoto  
1st Author's Affiliation University of Tsukuba (Univ. of Tsukuba)
2nd Author's Name Yoshihiro Kanamori  
2nd Author's Affiliation University of Tsukuba (Univ. of Tsukuba)
3rd Author's Name Yuki Endo  
3rd Author's Affiliation University of Tsukuba (Univ. of Tsukuba)
4th Author's Name Jun Mitani  
4th Author's Affiliation University of Tsukuba (Univ. of Tsukuba)
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Speaker Author-1 
Date Time 2017-03-14 11:45:00 
Presentation Time 15 minutes 
Registration for AS 
Paper # AIT2017-55 
Volume (vol) vol.41 
Number (no) no.12 
Page pp.41-44 
Date of Issue 2017-03-07 (AIT) 

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