@InProceedings{NascimentoCarvAndr:2015:ExClAl,
               author = "Nascimento, Fernando Melo and Carvalho, Andr{\'e} Britto de and 
                         Andrade, Beatriz Trinch{\~a}o",
          affiliation = "{Universidade Federal de Sergipe} and {Universidade Federal de 
                         Sergipe} and {Universidade Federal de Sergipe}",
                title = "Exploring Clustering Algorithms in the Appearance Modeling 
                         Problem",
            booktitle = "Proceedings...",
                 year = "2015",
               editor = "Vieira, Thales Miranda de Almeida and Mello, Vinicius Moreira",
         organization = "Conference on Graphics, Patterns and Images, 28. (SIBGRAPI)",
            publisher = "Sociedade Brasileira de Computa{\c{c}}{\~a}o",
              address = "Porto Alegre",
             keywords = "BRDF, clustering, appearance modeling, genetic algorithm, NNLS, 
                         linear combination.",
             abstract = "Modeling the appearance of a given material is a complex task with 
                         many approaches in the literature. One is to measure the BRDF of 
                         the material, which is time and resource consuming. One 
                         alternative is to use a linear combination of an existent 
                         BRDF-basis to approximate the material's appearance. However, the 
                         renderization of many BRDF-basis is also consuming, which could be 
                         eased by selecting a subset of the materials and use them as 
                         basis. Clustering algorithms can perform this task, by grouping 
                         BRDFs in clusters, where just one BRDF can represent one entire 
                         cluster. We use two classical and one evolutionary clustering 
                         algorithms to reduce the number of terms in the linear combination 
                         and a NNLS procedure to estimate the contributions of each 
                         BRDF-base in the reproduction of a desired material.",
  conference-location = "Salvador, BA, Brazil",
      conference-year = "26-29 Aug. 2015",
             language = "en",
                  ibi = "8JMKD3MGPBW34M/3JTACQ8",
                  url = "http://urlib.net/ibi/8JMKD3MGPBW34M/3JTACQ8",
           targetfile = "Exploring Clustering Algorithms in the Appearance Modeling 
                         Problem.pdf",
        urlaccessdate = "2024, Apr. 28"
}