A Copula-Based BRDF Model
In this paper, we introduce a novel approach for modeling surface reflection. We focus on using a family of probability distributions called Archimedean copulas as BRDF models. The Archimedean representation has an attractive property in that the multivariate distributions are characterized by their...
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| Veröffentlicht in: | Computer graphics forum 2010-09, Vol.29 (6), p.1795-1806 |
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| creator | Öztürk, Aydın Kurt, Murat Bilgili, Ahmet |
| description | In this paper, we introduce a novel approach for modeling surface reflection. We focus on using a family of probability distributions called Archimedean copulas as BRDF models. The Archimedean representation has an attractive property in that the multivariate distributions are characterized by their marginal distributions through a single univariate function only. It is shown that the proposed model meets the reciprocity property of reflection. Based on measured BRDF data, we demonstrate that the proposed approach provides a good approximation to BRDF. Empirical comparisons are made with some classically used BRDF models. |
| doi_str_mv | 10.1111/j.1467-8659.2010.01649.x |
| format | Article |
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| ispartof | Computer graphics forum, 2010-09, Vol.29 (6), p.1795-1806 |
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| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete; EBSCOhost Business Source Complete |
| subjects | 3-D graphics Approximation BRDF representation Computer based modeling Computer graphics copula distributions Empirical analysis I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism Luminosity Mathematical analysis Mathematical models Reciprocity Reflection reflection models rendering Representations Studies |
| title | A Copula-Based BRDF Model |
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