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IEEE Transactions on Visualization and Computer Graphics

Issue 2 • Apr-Jun 1997

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Displaying Results 1 - 7 of 7
  • Adaptive real-time level-of-detail based rendering for polygonal models

    Publication Year: 1997, Page(s):171 - 183
    Cited by:  Papers (102)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2960 KB)

    We present an algorithm for performing adaptive real-time level-of-detail-based rendering for triangulated polygonal models. The simplifications are dependent on viewing direction, lighting, and visibility and are performed by taking advantage of image-space, object-space, and frame-to-frame coherences. In contrast to the traditional approaches of precomputing a fixed number of level-of-detail rep... View full abstract»

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  • Speeding up isosurface extraction using interval trees

    Publication Year: 1997, Page(s):158 - 170
    Cited by:  Papers (78)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    The interval tree is an optimally efficient search structure proposed by Edelsbrunner (1980) to retrieve intervals on the real line that contain a given query value. We propose the application of such a data structure to the fast location of cells intersected by an isosurface in a volume dataset. The resulting search method can be applied to both structured and unstructured volume datasets, and it... View full abstract»

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  • The lazy sweep ray casting algorithm for rendering irregular grids

    Publication Year: 1997, Page(s):142 - 157
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1116 KB)

    Lazy sweep ray casting is a fast algorithm for rendering general irregular grids. It is based on the sweep-plane paradigm, and it is able to accelerate ray casting for rendering irregular grids, including disconnected and nonconvex unstructured irregular grids (even with holes) with a rendering cost that decreases as the “disconnectedness” decreases. The algorithm is carefully tailored... View full abstract»

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  • Tracking and visualizing turbulent 3D features

    Publication Year: 1997, Page(s):129 - 141
    Cited by:  Papers (87)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (788 KB)

    Visualizing 3D time-varying fluid datasets is difficult because of the immense amount of data to be processed and understood. These datasets contain many evolving amorphous regions, and it is difficult to observe patterns and visually follow regions of interest. In this paper, we present a technique which isolates and tracks full-volume representations of regions of interest from 3D regular and cu... View full abstract»

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  • Fast display of illuminated field lines

    Publication Year: 1997, Page(s):118 - 128
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1640 KB)

    A new technique for interactive vector field visualization using large numbers of properly illuminated field lines is presented. Taking into account ambient, diffuse and specular reflection terms, as well as transparency and depth cueing, we employ a realistic shading model which significantly increases the quality and realism of the resulting images. While many graphics workstations offer hardwar... View full abstract»

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  • Conveying the 3D shape of smoothly curving transparent surfaces via texture

    Publication Year: 1997, Page(s):98 - 117
    Cited by:  Papers (65)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3276 KB)

    Transparency can be a useful device for depicting multiple overlapping surfaces in a single image. The challenge is to render the transparent surfaces in such a way that their 3D shape can be readily understood and their depth distance from underlying structures clearly perceived. This paper describes our investigations into the use of sparsely-distributed discrete, opaque texture as an artistic d... View full abstract»

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  • Evaluation and design of filters using a Taylor series expansion

    Publication Year: 1997, Page(s):184 - 199
    Cited by:  Papers (70)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5156 KB)

    We describe a new method for analyzing, classifying, and evaluating filters that can be applied to interpolation filters as well as to arbitrary derivative filters of any order. Our analysis is based on the Taylor series expansion of the convolution sum. Our analysis shows the need and derives the method for the normalization of derivative filter weights. Under certain minimal restrictions of the ... View full abstract»

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Aims & Scope

Visualization techniques and methodologies; visualization systems and software; volume visualization; flow visualization; multivariate visualization; modeling and surfaces; rendering; animation; user interfaces; visual progranuning; applications.

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Meet Our Editors

Editor-in-Chief
Leila De Floriani

University of Maryland
College Park, MD 20742

ldf4tvcg@umiacs.umd.edu