A Copula-Based BRDF Model
Aydın Öztürk,
Murat Kurt,
Ahmet Bilgili,
Aydın Öztürk
Department of Computer Engineering, Yasar University, Turkey [email protected]
Search for more papers by this authorMurat Kurt
International Computer Institute, Ege University, Turkey [email protected] , [email protected]
Search for more papers by this authorAhmet Bilgili
International Computer Institute, Ege University, Turkey [email protected] , [email protected]
Search for more papers by this authorAydın Öztürk,
Murat Kurt,
Ahmet Bilgili,
Aydın Öztürk
Department of Computer Engineering, Yasar University, Turkey [email protected]
Search for more papers by this authorMurat Kurt
International Computer Institute, Ege University, Turkey [email protected] , [email protected]
Search for more papers by this authorAhmet Bilgili
International Computer Institute, Ege University, Turkey [email protected] , [email protected]
Search for more papers by this authorAbstract
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.
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