Hierarchical Representation of Time-Varying Volume Data with Fourth-Root-of-Two Subdivision and Quadrilinear B-Spline Wavelets [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2002.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- PDF-FILE: 13 ; SIZE: 11 MBYTES pages
- Additional Creators:
- Lawrence Livermore National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Multiresolution methods for representing data at multiple levels of detail are widely used for large-scale two- and three-dimensional data sets. We present a four-dimensional multiresolution approach for time-varying volume data. This approach supports a hierarchy with spatial and temporal scalability. The hierarchical data organization is based on 4√2 subdivision. The n√2-subdivision scheme only doubles the overall number of grid points in each subdivision step. This fact leads to fine granularity and high adaptivity, which is especially desirable in the spatial dimensions. For high-quality data approximation on each level of detail, we use quadrilinear B-spline wavelets. We present a linear B-spline wavelet lighting scheme based on n√2 subdivision to obtain narrow masks for the update rules. Narrow masks provide a basis for out-of-core data exploration techniques and view-dependent visualization of sequences of time steps.
- Report Numbers:
- E 1.99:ucrl-jc-151063
- Other Subject(s):
- Published through SciTech Connect.
Pacific Graphics 2002, Tsinghua University, Beijing (CN), 10/09/2002--10/11/2002.
Joy, K I; Pascucci, V; Duchaineau, M A; Hamann, B; Linsen, L.
- Funding Information:
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