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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1109/TVCG.2018.2872709
|2 doi
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|a eng
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| 100 |
1 |
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|a Guo, Jie
|e verfasserin
|4 aut
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| 245 |
1 |
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|a BRDF Analysis with Directional Statistics and its Applications
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|c 2020
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 12.02.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Data-driven BRDF models using real material measurements have become increasingly prevalent due to the development of novel gonioreflectometers, but efficient use of these models in many graphical applications remains challenging due to the few functionalities the raw data could provide. To ameliorate this issue, we propose to analyze BRDFs using directional statistics for better handling and exploring measured materials, especially isotropic materials, with efficient computation and compact storage. We conduct a thorough statistical analysis on both analytical BRDF models and measured materials from the MERL database. We show that different aspects of visual appearance can be characterized by different spherical moments, from which several descriptive measures can be derived to further facilitate their usage. We demonstrate how these measures are best leveraged in some graphical applications including gamut mapping using a new BRDF similarity measure, BRDF or SVBRDF reconstruction based on material clustering, and importance sampling for measured materials based on fast extracted GGX distributions. We finally show the potential of our approach in the categorization of surface reflectance types which is common for traditional photon mapping
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|a Journal Article
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| 700 |
1 |
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|a Guo, Yanwen
|e verfasserin
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| 700 |
1 |
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|a Pan, Jingui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lu, Wenzhou
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on visualization and computer graphics
|d 1996
|g 26(2020), 3 vom: 01. März, Seite 1476-1489
|w (DE-627)NLM098269445
|x 1941-0506
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|g month:03
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|u http://dx.doi.org/10.1109/TVCG.2018.2872709
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