Navegando por Autor "Minghim, Rosane"

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    Combination of techniques to enrich visualization in dentistry.
    (2000-12) Minghim, Rosane; Soares, Igor Prata; Oliveira, Maria Cristina Ferreira de; Nonato, Luis Gustavo
    This paper reports on the implementation of two diflerent approaches for visualization of dentistry data, discussing their role in providing adequate support for training, exploration, simulation and interaction in Dentistry applications. One of the approaches is a reconstruction technique based on the Delaunay Triangulation, and the other is a Direct Volumetric Rendering and Visualization technique with texture mapping. The results are evaluated in the light of the target applications, which are teaching and training in dentistry, as well as simulation of dental procedures and illnesses. Uses for multiple-technique visualization and exploration are discussed.
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    Implementing and applying direct volume rendering with textures.
    (2000-12) Soares, Igor Prata; Minghim, Rosane; Oliveira, Maria Cristina Ferreira de; Nonato, Luis Gustavo
    This paper reports on the implementation of a Direct Volumetric Rendering (DVR) and Visualization techniquein the context of a general-purpose, low cost visualization software with available source code. The technique employs a texture mapping strategy to combine scalar values of volumetric data into three-dimensionalimages. Relevant implementation issues of this technique are presented, and the results are discussed in the light of a target application, namely visualization in dentistry. The technique presented here, DVRT, has demonstrated to behave better than the ray casting DVR technique for the data sets of interest, and also to produce very good results under shading.