NDLI: Hierarchical representation of time-varying volume data with /sup 4//spl radic/2 subdivision and quadrilinear B-spline wavelets

Content Provider	IEEE Xplore Digital Library
Author	Linsen, L. Pascucci, V. Duchaineau, M.A. Hamann, B. Joy, K.I.
Copyright Year	2002
Description	Author affiliation: Center for Image Process. & Integrated Comput. (CIPIC), California Univ., Davis, CA, USA (Linsen, L.)
Abstract	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 /sup 4//spl radic/2 subdivision. The /sup n//spl radic/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 lifting scheme based on /sup n//spl radic/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.
Starting Page	346
Ending Page	355
File Size	618053
Page Count	10
File Format	PDF
ISBN	0769517846
DOI	10.1109/PCCGA.2002.1167878
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-09
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Spline Large-scale systems Spatial resolution Data visualization Image processing Scientific computing Computer science Laboratories Image resolution Large scale integration
Content Type	Text
Resource Type	Article

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