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IEEE Transactions on Visualization and Computer Graphics

Issue 4 • Date Oct.-Dec. 1997

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Displaying Results 1 - 8 of 8
  • 1997 Index IEEE Transactions on Visualization And Computer Graphics Vol. 3

    Publication Year: 1997, Page(s):381 - 384
    Request permission for commercial reuse | PDF file iconPDF (136 KB)
    Freely Available from IEEE
  • A wavelet representation of reflectance functions

    Publication Year: 1997, Page(s):329 - 336
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1188 KB)

    Analytical models of light reflection are in common use in computer graphics. However, models based on measured reflectance data promise increased realism by making it possible to simulate many more types of surfaces to a greater level of accuracy than with analytical models. They also require less expert knowledge about the illumination models and their parameters. There are a number of hurdles t... View full abstract»

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  • A fast Gibbs sampler for synthesizing constrained fractals

    Publication Year: 1997, Page(s):337 - 351
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4424 KB)

    It is well known that the spatial frequency spectrum of membrane and thin plate splines exhibit self-affine characteristics and, hence, behave as fractals. This behavior was exploited in generating the constrained fractal surfaces, which were generated by using a Gibbs sampler algorithm in the work of Szeliski and Terzopoulos (1989). The algorithm involves locally perturbing a constrained spline s... View full abstract»

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  • Breadth-first ray tracing utilizing uniform spatial subdivision

    Publication Year: 1997, Page(s):316 - 328
    Cited by:  Papers (4)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (944 KB)

    Breadth-first ray tracing is based on the idea of exchanging the roles of rays and objects. For scenes with a large number of objects, it may be profitable to form a set of rays and compare each object in turn against this set. By doing so, thrashing, due to disk access, can be minimized. We present ways to combine breadth-first methods with traditional efficient algorithms, along with new schemes... View full abstract»

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  • Multiresolution representation and visualization of volume data

    Publication Year: 1997, Page(s):352 - 369
    Cited by:  Papers (29)  |  Patents (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1132 KB)

    A system to represent and visualize scalar volume data at multiple resolution is presented. The system is built on a multiresolution model based on tetrahedral meshes with scattered vertices that can be obtained from any initial dataset. The model is built off-line through data simplification techniques, and stored in a compact data structure that supports fast on-line access. The system supports ... View full abstract»

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  • Modeling and visualization for a pearl-quality evaluation simulator

    Publication Year: 1997, Page(s):307 - 315
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1620 KB)

    Visual simulation using CG and VR has attracted wide attention in the machine vision field. This paper proposes a method of modeling and visualizing pearls that will be the central technique of a pearl-quality evaluation simulator. Pearls manifest a very specific optical phenomenon that is not dependent on the direction of the light source. To investigate this feature, we propose a physical model,... View full abstract»

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  • Out-of-core streamline visualization on large unstructured meshes

    Publication Year: 1997, Page(s):370 - 380
    Cited by:  Papers (37)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1364 KB)

    This paper presents an out-of-core approach for interactive streamline construction on large unstructured tetrahedral meshes containing millions of elements. The out-of-core algorithm uses an octree to partition and restructure the raw data into subsets stored into disk files for fast data retrieval. A memory management policy tailored to the streamline calculations is used such that, during the s... View full abstract»

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  • A visibility matching tone reproduction operator for high dynamic range scenes

    Publication Year: 1997, Page(s):291 - 306
    Cited by:  Papers (171)  |  Patents (51)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2196 KB)

    We present a tone reproduction operator that preserves visibility in high dynamic range scenes. Our method introduces a new histogram adjustment technique, based on the population of local adaptation luminances in a scene. To match subjective viewing experience, the method incorporates models for human contrast sensitivity, glare, spatial acuity, and color sensitivity. We compare our results to pr... 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
Department of Computer Science, Bioengineering, Robotics and Systems Engineering
University of Genova
16146 Genova (Italy)
ldf4tvcg@umiacs.umd.edu