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IEEE Computer Graphics and Applications

Issue 5 • Sept. 1988

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Displaying Results 1 - 8 of 8
  • Comments on 'Spacetime ray tracing for animation' by A.S. Glassner

    Publication Year: 1988
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (87 KB)

    The commenter observes that the impression given by the author of the above-mention paper (ibid., vol.8, no.2, p.60-70, Mar. 1988) that modeling space and time using 4-D recursive division is a novel idea is inaccurate and cites four references to back his statement. He otherwise regards the article as valuable.<> View full abstract»

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  • The 3D kaleidoscope

    Publication Year: 1988, Page(s):9 - 14
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (563 KB)

    The author presents a method for constructing platonic solids that takes advantage of their symmetry. This works well with a coordinate transform system, since symmetry is based on coordinate transformations. He treats the cube and other related shapes, using a seed-triangle element that can be rotated and reflected to generate the shape. He shows that the seed triangle can be replaced with any sh... View full abstract»

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  • Color-defective vision and computer graphics displays

    Publication Year: 1988, Page(s):28 - 40
    Cited by:  Papers (34)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1272 KB)

    A color space defined by the fundamental spectral sensitivity functions of the human visual system is used to assist in the design of computer graphics displays for color-deficient users. The functions are derived in terms of the CIE standard observer color-matching functions. The Farnsworth-Munsell 100-hue test, a widely used color vision test administered using physical color samples, is then im... View full abstract»

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  • Color sequences for univariate maps: theory, experiments and principles

    Publication Year: 1988, Page(s):41 - 49
    Cited by:  Papers (84)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1705 KB)

    Pseudocoloring for presenting univariate map information on a graphic display system is investigated. The kinds of information available in maps are divided into two classes: metric information denotes the quantity stored at each point on the surface, and form information denotes the shape or structure of the surface. Theoretical principles are proposed to predict which color sequences will be eff... View full abstract»

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  • Visualizing color gamuts: a user interface for the effective use of perceptual color spaces in data displays

    Publication Year: 1988, Page(s):50 - 64
    Cited by:  Papers (37)  |  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1478 KB)

    The advantages of using perceptually uniform color spaces in data displays are described. It is shown how one-, two-, and three-dimensional representations of color gamuts can provide an understanding, at various visualization levels, of the colors that can be produced on display devices, of how they restrict color displays in practice, and of how they form an essential part of a user interface in... View full abstract»

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  • A taxonomy of window manager user interfaces

    Publication Year: 1988, Page(s):65 - 84
    Cited by:  Papers (17)  |  Patents (93)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2109 KB)

    A taxonomy for the user-visible parts of window managers is presented. It is noted that there are actually very few significant differences, and the differences can be classified in a taxonomy with fairly limited branching. This taxonomy should be useful in evaluating various window managers, and it will also serve as a guide for the issues that need to be addressed by designers if future window-m... View full abstract»

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  • A psychophysical approach to assessing the quality of antialiased images

    Publication Year: 1988, Page(s):85 - 95
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1105 KB)

    The assumption that antialiasing destroys useful visual information about object features is challenged in three experiments that examine the effects of antialiasing on the visual information for object location and motion. The results show that proper antialiasing eliminates the spurious visual information produced by sampling processes in image synthesis and allows the viewer's visual system to ... View full abstract»

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  • Cycling softkeys

    Publication Year: 1988, Page(s):96 - 98
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    A description is given of cycling softkeys, a user interface technique that combines menus and keyboard function keys. Function keys, or softkeys, are keyboard keys with no standard bindings. Application can use these keys to represent specific commands or actions without changing the use of the keys in the normal typing array. Cycling softkeys provide the user with multiple options on a single fu... View full abstract»

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Aims & Scope

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
The QED Group