Adaptive extraction of time-varying isosurfaces

被引：10

作者：

Gregorski, B

Senecal, J

Duchaineau, MA

Joy, KI

机构：

[1] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94551 USA

[2] Univ Calif Davis, Dept Comp Sci, Ctr Image Proc & Integrated Computing, Davis, CA 95616 USA

来源：

IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS | 2004年 / 10卷 / 06期

关键词：

isosurfaces; multiresolution techniques; large isosurface visualization; time-varying isosurfaces; time-varying visualization; out-of-core visualization;

D O I：

10.1109/TVCG.2004.35

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

We present an algorithm for adaptively extracting and rendering isosurfaces from compressed time-varying volume data sets. Tetrahedral meshes defined by longest edge bisection are used to create a multiresolution representation of the volume in the spatial domain that is adapted overtime to approximate the time-varying volume. The reextraction of the isosurface at each time step is accelerated with the vertex programming capabilities of modern graphics hardware. A data layout scheme which follows the access pattern indicated by mesh refinement is used to access the volume in a spatially and temporally coherent manner. This data layout scheme allows our algorithm to be used for out-of-core visualization.

引用

页码：683 / 694

页数：12

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