author = "Montenegro, Anselmo Antunes and Velho, Luiz and Carvalho, Paulo 
                         Cezar Pinto and Sossai Jr, Jonas",
          affiliation = "{Universidade do Estado do Rio de Janeiro} and {Instituto Nacional 
                         de Matem{\'a}tica Pura e Aplicada} and {Instituto Nacional de 
                         Matem{\'a}tica Pura e Aplicada} and {Instituto Nacional de 
                         Matem{\'a}tica Pura e Aplicada}",
                title = "Polygonization of volumetric reconstructions from silhouettes",
            booktitle = "Proceedings...",
                 year = "2006",
               editor = "Oliveira Neto, Manuel Menezes de and Carceroni, Rodrigo Lima",
         organization = "Brazilian Symposium on Computer Graphics and Image Processing, 19. 
            publisher = "IEEE Computer Society",
              address = "Los Alamitos",
             keywords = "Polygonization, , Reconstruction from silhouettes, Dual 
                         Contouring, 3D photography.",
             abstract = "In this work we propose a method for the polygonization of 
                         octree-based reconstructions by dual contouring. Dual contouring 
                         is an adaptive method for determining contiguous polygonal meshes 
                         from signed octrees. It determines the positioning of the vertices 
                         of the mesh by minimizing a quadratic error expressed in terms of 
                         hermitian data. In order to apply dual contouring on volumetric 
                         reconstruction from silhouettes we devised a method that is able 
                         to determine the discrete topology of the contour in relation to 
                         the octree cells, as well as the hermitian data corresponding to 
                         the intersections and normals of conic volumes whose intersection 
                         approximates a structure known as Visual Hull. Due to the discrete 
                         and extremely noisy nature of the data used in the reconstruction 
                         we had to devise a different criterion for mesh simplification 
                         that applies topological consistency tests only when the geometric 
                         error measure is beyond a given tolerance. We present results of 
                         the application of the proposed method in the extraction of a mesh 
                         corresponding to the surface of objects of a real scene.",
  conference-location = "Manaus",
      conference-year = "8-11 Oct. 2006",
             language = "en",
           targetfile = "montenegro_polygonizationofvolrecsilhouettes.pdf",
        urlaccessdate = "2020, Nov. 26"