author = "Velho, Luiz and Terzopoulos, Demetri and Gomes, Jonas de Miranda",
          affiliation = "{Instituto de Matem{\'a}tica Pura e Aplicada (IMPA)} and 
                         {Department of Computer Science of University of Toronto} and 
                         {Instituto de Matem{\'a}tica Pura e Aplicada (IMPA)}",
                title = "Multiscale implicit models",
            booktitle = "Anais...",
                 year = "1994",
               editor = "Freitas, Carla dal Sasso and Geus, Klaus de and Scheer, 
                pages = "93--100",
         organization = "Simp{\'o}sio Brasileiro de Computa{\c{c}}{\~a}o Gr{\'a}fica e 
                         Processamento de Imagens, 7. (SIBGRAPI)",
            publisher = "Sociedade Brasileira de Computa{\c{c}}{\~a}o",
              address = "Porto Alegre",
             keywords = "multiple scales, implicit function model, B-spline, ray tracing, 
                         volume visualization, multiscale decomposition models.",
             abstract = "In this paper we introduce a new method for the piecewise 
                         representation of implicit objects based on mulstiscale 
                         decomposition of the implicit function. We define a model that is 
                         adapted to the implicit function at multiple scales. This model is 
                         described in terms of B-spline functions which are suitable for 
                         geometric computations. We construct a representation that is 
                         structured and hierarchical. This description combines the best 
                         features of point skeletons and volume arrays. The multiscale 
                         decomposition models, the conversion from volumetric to implicit 
                         representations, rendering of implicit surfaces using ray tracing, 
                         and volume visualization.",
  conference-location = "Curitiba",
      conference-year = "9 - 11 nov. 1994",
                 isbn = "978-85-7669-272-0",
             language = "en",
                  ibi = "8JMKD3MGPBW34M/3DE3HNS",
                  url = "",
           targetfile = "13 Multiscale implicit models.pdf",
                 type = "Modelagem e Anima{\c{c}}{\~a}o",
               volume = "1",
        urlaccessdate = "2021, Nov. 30"