Title: Parallel construction and isosurface extraction of recursive tree structures
Authors: Bartz, Dirk
Straßer, Wolfgang
Grosso, Roberto
Ertl, Thomas
Citation: Journal of WSCG. 1998, vol. 6, no. 1-3.
Issue Date: 1998
Publisher: Václav Skala - UNION Agency
Document type: článek
URI: http://hdl.handle.net/11025/15837
ISSN: 1213-6972 (print)
1213-6980 (CD-ROM)
1213-6964 (online)
Keywords: objemová vizualizace;octrees;hierarchická datová struktura;propletený model;paradigma sdílené paměti
Keywords in different language: volume visualization;octrees;hierarchical data structures;thread model;shared-memory paradigm
Abstract in different language: The visualization of volumetric datasets is usually limited by the amount of memory and processing power of computer systems. Several multiresolution methods have been developed in order to adapt the necessary work; recursive spatial tree structures, such as octrees, are among the most popular. The exploration of a dataset frequently requires a change of parameters, such as color table entries or isovalues. Therefore, the costly update of an octree becomes necessary. To overcome this drawback, we propose the parallel construction of octrees to improve their suitability for interactive volume visualization. Based on the thread model of the shared-memory paradigm, we developed a scheme for a balanced parallel construction. We apply this new scheme to generate isosurfaces in parallel, using the Marching Cubes algorithm.
Rights: © Václav Skala - UNION Agency
Appears in Collections:Volume 6, number 1-3 (1998)

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