Streaming simplification of tetrahedral meshes

Unstructured tetrahedral meshes are commonly used in scientific computing to represent scalar, vector, and tensor fields in three dimensions. Visualization of these meshes can be difficult to perform interactively due to their size and complexity. By reducing the size of the data, we can accomplish...

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Veröffentlicht in:IEEE transactions on visualization and computer graphics. - 1996. - 13(2007), 1 vom: 10. Jan., Seite 145-55
1. Verfasser: Vo, Huy T (VerfasserIn)
Weitere Verfasser: Callahan, Steven P, Lindstrom, Peter, Pascucci, Valerio, Silva, Cláudio T
Format: Aufsatz
Sprache:English
Veröffentlicht: 2007
Zugriff auf das übergeordnete Werk:IEEE transactions on visualization and computer graphics
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S.
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520 |a Unstructured tetrahedral meshes are commonly used in scientific computing to represent scalar, vector, and tensor fields in three dimensions. Visualization of these meshes can be difficult to perform interactively due to their size and complexity. By reducing the size of the data, we can accomplish real-time visualization necessary for scientific analysis. We propose a two-step approach for streaming simplification of large tetrahedral meshes. Our algorithm arranges the data on disk in a streaming, I/O-efficient format that allows coherent access to the tetrahedral cells. A quadric-based simplification is sequentially performed on small portions of the mesh in-core. Our output is a coherent streaming mesh which facilitates future processing. Our technique is fast, produces high quality approximations, and operates out-of-core to process meshes too large for main memory 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
700 1 |a Callahan, Steven P  |e verfasserin  |4 aut 
700 1 |a Lindstrom, Peter  |e verfasserin  |4 aut 
700 1 |a Pascucci, Valerio  |e verfasserin  |4 aut 
700 1 |a Silva, Cláudio T  |e verfasserin  |4 aut 
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