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<p><b>Abstract</b>—A system to represent and visualize scalar volume data at multiple resolution is presented. The system is built on a multiresolution model based on tetrahedral meshes with scattered vertices that can be obtained from any initial dataset. The model is built off-line through data simplification techniques, and stored in a compact data structure that supports fast on-line access. The system supports interactive visualization of a representation at an arbitrary level of resolution through isosurface and projective methods. The user can interactively adapt the quality of visualization to requirements of a specific application task and to the performance of a specific hardware platform. Representations at different resolutions can be used together to further enhance interaction and performance through progressive and multiresolution rendering.</p>
Volume data visualization, multiresolution representation, tetrahedral meshes.

P. Cignoni, C. Montani, E. Puppo and R. Scopigno, "Multiresolution Representation and Visualization of Volume Data," in IEEE Transactions on Visualization & Computer Graphics, vol. 3, no. , pp. 352-369, 1997.
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