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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1109/TVCG.2015.2467412
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|a eng
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| 100 |
1 |
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|a Weiss, Kenneth
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a Adaptive Multilinear Tensor Product Wavelets
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| 264 |
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1 |
|c 2016
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|b txt
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|a Date Completed 05.02.2016
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| 500 |
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|a Date Revised 04.11.2015
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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| 520 |
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|a Many foundational visualization techniques including isosurfacing, direct volume rendering and texture mapping rely on piecewise multilinear interpolation over the cells of a mesh. However, there has not been much focus within the visualization community on techniques that efficiently generate and encode globally continuous functions defined by the union of multilinear cells. Wavelets provide a rich context for analyzing and processing complicated datasets. In this paper, we exploit adaptive regular refinement as a means of representing and evaluating functions described by a subset of their nonzero wavelet coefficients. We analyze the dependencies involved in the wavelet transform and describe how to generate and represent the coarsest adaptive mesh with nodal function values such that the inverse wavelet transform is exactly reproduced via simple interpolation (subdivision) over the mesh elements. This allows for an adaptive, sparse representation of the function with on-demand evaluation at any point in the domain. We focus on the popular wavelets formed by tensor products of linear B-splines, resulting in an adaptive, nonconforming but crack-free quadtree (2D) or octree (3D) mesh that allows reproducing globally continuous functions via multilinear interpolation over its cells
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| 650 |
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|a Journal Article
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| 650 |
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 700 |
1 |
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|a Lindstrom, Peter
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on visualization and computer graphics
|d 1996
|g 22(2016), 1 vom: 24. Jan., Seite 985-94
|w (DE-627)NLM098269445
|x 1941-0506
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