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Volume Visualization, 1996. Proceedings., 1996 Symposium on

Date 29-29 Oct. 1996

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Displaying Results 1 - 13 of 13
  • Proceedings of 1996 Symposium on Volume Visualization

    Publication Year: 1996
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    Freely Available from IEEE
  • Fast isocontouring for improved interactivity

    Publication Year: 1996, Page(s):39 - 46
    Cited by:  Papers (38)  |  Patents (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1175 KB)

    We present an isocontouring algorithm which is near-optimal for real-time interaction and modification of isovalues in large datasets. A preprocessing step selects a subset S of the cells which are considered as seed cells. Given a particular isovalue, all cells in S which intersect the given isocontour are extracted using a high-performance range search. Each connected component is swept out usin... View full abstract»

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  • Author index

    Publication Year: 1996, Page(s): 95
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    Freely Available from IEEE
  • Fast sliding thin slab volume visualization

    Publication Year: 1996, Page(s):79 - 86
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1308 KB)

    We present a method for fast rendering of a thin slab bounded by a set of clipping planes oriented perpendicular to the viewing direction. Our implementation allows the user to specify the view direction, slab thickness and slab position within the volume and performs either classical volume rendering or maximum intensity projection. The system can either render single slabs or a sequence of slabs... View full abstract»

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  • Fast volume rendering with adjustable color maps

    Publication Year: 1996, Page(s):7 - 14, 98
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1044 KB)

    In scientific visualization, it is necessary to visualize the distribution of a scalar field by using adjustable color maps in conjunction with a pseudo-color display. This paper proposes a method for fast direct volume rendering when color maps undergo change. The method pre-calculates basis images that are independent from the color maps. The rendered images for an arbitrary color map are then g... View full abstract»

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  • Visualizing vector fields using line integral convolution and dye advection

    Publication Year: 1996, Page(s):63 - 70, 102
    Cited by:  Papers (26)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1080 KB)

    We present local and global techniques to visualize three-dimensional vector field data. Using the Line Integral Convolution (LIC) method to image the global vector field, our new algorithm allows the user to introduce colored “dye” into the vector field to highlight local flow features. A fast algorithm is proposed that quickly recomputes the dyed LIC images. In addition, we introduce... View full abstract»

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  • Cube-4-a scalable architecture for real-time volume rendering

    Publication Year: 1996, Page(s):47 - 54, 100
    Cited by:  Papers (33)  |  Patents (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (908 KB)

    We present Cube-4, a special-purpose volume rendering architecture that is capable of rendering high-resolution (e.g., 10243) datasets at 30 frames per second. The underlying algorithm, called slice-parallel ray-casting, uses tri-linear interpolation of samples between data slices for parallel and perspective projections. The architecture uses a distributed interleaved memory, several p... View full abstract»

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  • Classification and local error estimation of interpolation and derivative filters for volume rendering

    Publication Year: 1996, Page(s):71 - 78, 103
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1436 KB)

    We describe a new method for analyzing, classifying, and evaluating filters, which can be applied to interpolation filters, and derivative filters. Our analysis is based on the Taylor series expansion of a convolution sum and some assumptions on the behavior of the data function. As a result of our analysis, we derive the need and the method for normalization of derivative filter coefficients. As ... View full abstract»

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  • 3D shock wave visualization on unstructured grids

    Publication Year: 1996, Page(s):87 - 94, 104
    Cited by:  Papers (8)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1012 KB)

    A critical issue in understanding high speed flows is the study of shock waves. The paper summarizes our research on techniques for the detection and visualization of shock waves occuring in simulations of three dimensional flows on unstructured grids. Detection algorithms based on Mach number, density gradient and directional derivatives are compared using a data set from calculations of a transo... View full abstract»

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  • Fast rendering of irregular grids

    Publication Year: 1996, Page(s):15 - 22, 97
    Cited by:  Papers (9)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1064 KB)

    We propose a fast algorithm for rendering general irregular grids. Our method uses a sweep-plane approach to accelerate ray casting, and can handle disconnected and nonconvex (even with holes) unstructured irregular grids with a rendering cost that decreases as the “disconnectedness” decreases. The algorithm is carefully tailored to exploit spatial coherence even if the image resolutio... View full abstract»

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  • Optimal isosurface extraction from irregular volume data

    Publication Year: 1996, Page(s):31 - 38
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    A method is proposed which supports the extraction of isosurfaces from irregular volume data, represented by tetrahedral decomposition, in optimal time. The method is based on a data structure called interval tree, which encodes a set of intervals on the real line, and supports efficient retrieval of all intervals containing a given value. Each cell in the volume data is associated with an interva... View full abstract»

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  • Direct volume rendering with shading via three-dimensional textures

    Publication Year: 1996, Page(s):23 - 30, 98
    Cited by:  Papers (54)  |  Patents (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1256 KB)

    A new and easy-to-implement method for direct volume rendering that uses 3D texture maps for acceleration, and incorporates directional lighting, is described. The implementation, called Voltx, produces high-quality images at nearly interactive speeds on workstations with hardware support for three-dimensional texture maps. Previously reported methods did not incorporate a light model, and did not... View full abstract»

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  • Hardware assisted volume rendering of unstructured grids by incremental slicing

    Publication Year: 1996, Page(s):55 - 62, 101
    Cited by:  Papers (35)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1164 KB)

    Some of the more important research results in computational science rely on the use of simulation methods that operate on unstructured grids. However, these grids, composed of a set of polyhedra, introduce exceptional problems with respect to data visualization. Volume rendering techniques, originally developed to handle rectangular grids, show significant promise for general use with unstructure... View full abstract»

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