@InProceedings{NascimentoQuRoReMePe:2011:CoIl2D,
               author = "Nascimento, Renata and Queiroz, Fabiane and Rocha, Allan and Ren, 
                         Tsang Ing and Mello, Vinicius and Peixoto, Adelailson",
          affiliation = "Department of Mathematics, PUC–Rio, Rio de Janeiro, Brazil and 
                         Department of Computer Science, UFPE, Pernambuco, Brazil and 
                         Department of Computer Science, PUC–Rio, Rio de Janeiro, Brazil 
                         and Department of Computer Science, UFPE, Pernambuco, Brazil and 
                         Institute of Mathematics, UFBA, Salvador, Brazil and Institute of 
                         Mathematics, UFAL, Macei{\'o}, Brazil",
                title = "Colorization and Illumination of 2D Animations Based on a 
                         Region-tree Representation",
            booktitle = "Proceedings...",
                 year = "2011",
               editor = "Lewiner, Thomas and Torres, Ricardo",
         organization = "Conference on Graphics, Patterns and Images, 24. (SIBGRAPI)",
            publisher = "IEEE Computer Society",
              address = "Los Alamitos",
             keywords = "drawing, region-tree, illumination, colorization,animation.",
             abstract = "Colorization and illumination are key processes for creating 
                         animated cartoons. Computer assisted methods have been 
                         incorporated in animation/illustration systems to reduce the 
                         artists' effort. This paper presents a new strategy for 
                         illumination and colorization of 2D drawings based on a 
                         region-tree. Starting from a hand-drawn cartoon, it extracts 
                         geometric and topological information and builds a tree structure, 
                         ensuring independence among parts of the drawing, such as curves 
                         and regions. Based on this structure and its attributes, a 
                         colorization method that propagates through consecutive frames of 
                         animation is proposed, together with an interpolation method that 
                         accurately computes a normal mapping for the illumination process. 
                         Different operators on curve and region attributes can be applied 
                         independently, obtaining different rendering effects.",
  conference-location = "Macei{\'o}, AL, Brazil",
      conference-year = "28-31 Aug. 2011",
                  doi = "10.1109/SIBGRAPI.2011.6",
                  url = "http://dx.doi.org/10.1109/SIBGRAPI.2011.6",
             language = "en",
                  ibi = "8JMKD3MGPBW34M/3A3LRJP",
                  url = "http://urlib.net/ibi/8JMKD3MGPBW34M/3A3LRJP",
           targetfile = "86798.pdf",
        urlaccessdate = "2024, Apr. 27"
}