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IEEE Computer Graphics and Applications

Issue 5 • Sept.-Oct. 1997

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Displaying Results 1 - 11 of 11
  • Phantom-based haptic interaction with virtual objects

    Publication Year: 1997, Page(s):6 - 10
    Cited by:  Papers (87)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (920 KB)

    In 1993, haptic interaction with computers took a significant step forward with the development of the Phantom haptic interface. This simple device has spawned a new field analogous to computer graphics-computer haptics-defined as the discipline concerned with the techniques and processes associated with generating and displaying synthesized haptic stimuli to the human user. Inspired by the author... View full abstract»

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  • Rendering On A Fantasy

    Publication Year: 1997, Page(s):4 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (205 KB)

    First Page of the Article
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  • Simulation And Modeling

    Publication Year: 1997, Page(s): 15
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (138 KB)

    First Page of the Article
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  • Interactive space deformation with hardware-assisted rendering

    Publication Year: 1997, Page(s):66 - 77
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    The authors introduce a new approach for the deformation of surface and raster models in two and three dimensions. Rather than deforming the model, they deform the agents employed to render it. The method uses one deformation tool (the deflector) to deform any object that is ray traceable. Based on deforming the rendering primitives rather than objects, the approach invests computation effort only... View full abstract»

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  • Modeling with features

    Publication Year: 1997, Page(s):40 - 46
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    Existing freeform modeling methods do not address the needs of sculptors and animators, which differ from those of engineers. The authors' modeler fills this gap, allowing users to build shapes by adding bumps, dents, or twists anywhere on a parametric surface View full abstract»

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  • Using views for product data exchange

    Publication Year: 1997, Page(s):58 - 65
    Cited by:  Papers (8)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    Proprietary data structures complicate data sharing by making it difficult to save a product model from one software tool and load it directly into another tool. Engineers may want, for example, to verify with an analysis tool that all design constraints have been met or to prepare a design for manufacturing. In such cases, software developers must find a means of moving the product model from the... View full abstract»

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  • The perils of problematic parameterization

    Publication Year: 1997, Page(s):78 - 83
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (936 KB)

    No matter how or when one uses polygons to approximate a curved surface, one needs to be very sure that they match that surface closely. The author can think of two ways to check this match: visually and mathematically. A visual check requires looking at the rendered imagery with a critical eye-if the surfaces look free of polygonal artifacts, then the approximation is good enough for that image. ... View full abstract»

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  • Digital orthophotography: mapping with pictures

    Publication Year: 1997, Page(s):12 - 14
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (896 KB)

    Aerial photographs and maps would seem a natural combination to record and analyze geographical information: maps provide geometric information and photographs add realistic, timely detail. But cameras record images on a flat plane, whereas the earth is curved and its terrain takes on many varied shapes-all of which distort the image geometry and render it invalid for mapping and geographic analys... View full abstract»

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  • Visualization of prosthesis fit in lower-limb amputees

    Publication Year: 1997, Page(s):16 - 29
    Cited by:  Papers (6)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1916 KB)

    Lower-limb prosthesis quality-of-fit assessment is purely subjective in routine clinical practice, relying on patient reports of discomfort, erythema (localized pain), and palpation. Wide variations in residual limb physical characteristics and conditions preclude a rigid approach to prosthesis prescription. With relatively long life expectancy for many lower-limb amputees, clinicians measure outc... View full abstract»

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  • Simulation-based remote debriefing for Red Flag missions

    Publication Year: 1997, Page(s):30 - 39
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1124 KB)

    The Red Flag Measurement and Debriefing System reconstructs a mock air battle. A portable prototype system, the remote debriefing tool, helps merge the real and virtual environments. The research effort described by the authors investigated two areas not previously addressed by others: first, the inclusion of live participants in the synthetic environment, and second, a stealth viewer tailored to ... View full abstract»

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  • The Solar System Modeler

    Publication Year: 1997, Page(s):47 - 57
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1208 KB)

    The authors undertook the Solar System Modeler project to improve comprehension and appreciation of the size, complexity, and splendor of the solar system. To do so, the Solar System Modeler must (1) accurately portray the orbital behavior of satellites, planets, comets, and other celestial bodies, and (2) function in a distributed virtual environment. Additionally, the system needs to: provide a ... View full abstract»

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IEEE CG&A bridges the theory and practice of computer graphics. From specific algorithms to full system implementations, CG&A offers a unique combination of peer-reviewed feature articles and informal departments, including product announcements.

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Meet Our Editors

Editor-in-Chief
L. Miguel Encarnação
University of Iowa