Navegação Ciências Exatas e da Terra por Autor "Comba, Joao Luiz Dihl"

Resultados 1-7 de 7

    • Computation on GPUs: from a programmable pipeline to an efficient stream processor 

      Comba, Joao Luiz Dihl; Dietrich, Carlos Augusto; Pagot, Christian Azambuja; Scheidegger, Carlos Eduardo (2003) [Artigo de periódico]
      O recente desenvolvimento de hardware gráfico apresenta uma mudança na implementação do pipeline gráfico, de um conjunto fixo de funções, para programas especiais desenvolvidos pelo usuário que são executados para cada ...

    • Edge Groups : an approach to understanding the Mesh quality of Marching Methods 

      Dietrich, Carlos Augusto; Scheidegger, Carlos Eduardo; Comba, Joao Luiz Dihl; Nedel, Luciana Porcher; Silva, Cláudio Teixeira (2008) [Artigo de periódico]
      Marching Cubes is the most popular isosurface extraction algorithm due to its simplicity, efficiency and robustness. It has been widely studied, improved, and extended. While much early work was concerned with efficiency ...

    • Edge transformations for improving mesh quality of marching cubes 

      Dietrich, Carlos Augusto; Scheidegger, Carlos Eduardo; Schreiner, John; Nedel, Luciana Porcher; Comba, Joao Luiz Dihl; Silva, Cláudio Teixeira (2009) [Artigo de periódico]
      Marching Cubes is a popular choice for isosurface extraction from regular grids due to its simplicity, robustness, and efficiency. One of the key shortcomings of this approach is the quality of the resulting meshes, which ...

    • Hardware-assisted visibility sorting for unstructured volume rendering 

      Callahan, Steven Paul; Ikits, Milan; Comba, Joao Luiz Dihl; Silva, Cláudio Teixeira (2005) [Artigo de periódico]
      Harvesting the power of modern graphics hardware to solve the complex problem of real-time rendering of large unstructured meshes is a major research goal in the volume visualization community. While, for regular grids, ...

    • Marching cubes without skinny triangles 

      Dietrich, Carlos Augusto; Scheidegger, Carlos Eduardo; Comba, Joao Luiz Dihl; Nedel, Luciana Porcher; Silva, Cláudio Teixeira (2009) [Artigo de periódico]

    • Measuring statistical geometric properties of tomographic images of soils 

      Felipussi, Siovani Cintra; Scharcanski, Jacob; Comba, Joao Luiz Dihl (2008) [Artigo de periódico]
      Porous media modeling is relevant in several applications, such as agricultural engineering, where soil compaction analysis requires the estimation of soil transport properties. For example, the prediction of root growing ...

    • A survey of GPU-Based volume rendering of unstructured grids 

      Silva, Cláudio Teixeira; Comba, Joao Luiz Dihl; Callahan, Steven Paul; Bernardon, Fabio Fedrizzi (2005) [Artigo de periódico]
      A visualização volumétrica de grandes malhas não estruturadas é uma das principais metas da comunidade de visualização científica. Enquanto que em grades regulares o uso de técnicas baseadas em textura são adequadas para ...