Time Critical Isosurface Refinement and Smoothing

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Multi-resolution data-structures and algorithms are key in Visualization to achieve real-time interaction with large data-sets. Research has been primarily focused on the off-line construction of such representations mostly using decimation schemes. Drawbacks of this class of approaches include: (i) the inability to maintain interactivity when the displayed surface changes frequently, (ii) inability to control the global geometry of the embedding (no self-intersections) of any approximated level of detail of the output surface. In this paper we introduce a technique for on-line construction and smoothing of progressive isosurfaces. Our hybrid approach combines the flexibility of a progressive multi-resolution representation with the ... continued below

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3,200 Kilobytes pages

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Pascucci, V. & Bajaj, C. L. July 10, 2000.

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Description

Multi-resolution data-structures and algorithms are key in Visualization to achieve real-time interaction with large data-sets. Research has been primarily focused on the off-line construction of such representations mostly using decimation schemes. Drawbacks of this class of approaches include: (i) the inability to maintain interactivity when the displayed surface changes frequently, (ii) inability to control the global geometry of the embedding (no self-intersections) of any approximated level of detail of the output surface. In this paper we introduce a technique for on-line construction and smoothing of progressive isosurfaces. Our hybrid approach combines the flexibility of a progressive multi-resolution representation with the advantages of a recursive sub-division scheme. Our main contributions are: (i) a progressive algorithm that builds a multi-resolution surface by successive refinements so that a coarse representation of the output is generated as soon as a coarse representation of the input is provided, (ii) application of the same scheme to smooth the surface by means of a 3D recursive subdivision rule, (iii) a multi-resolution representation where any adaptively selected level of detail surface is guaranteed to be free of self-intersections.

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3,200 Kilobytes pages

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  • Volume Visualization and Graphics Symposium 2000, Salt Lake City, UT (US), 10/03/2000--10/10/2000

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  • Report No.: UCRL-JC-139628
  • Grant Number: W-7405-Eng-48
  • Office of Scientific & Technical Information Report Number: 790385
  • Archival Resource Key: ark:/67531/metadc718086

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  • July 10, 2000

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  • Sept. 29, 2015, 5:31 a.m.

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  • May 6, 2016, 3:04 p.m.

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Pascucci, V. & Bajaj, C. L. Time Critical Isosurface Refinement and Smoothing, article, July 10, 2000; California. (digital.library.unt.edu/ark:/67531/metadc718086/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.