IEEE Computer Graphics and Applications

Issue 3 • May 1992

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Displaying Results 1 - 8 of 8
  • 3D visualization of an ancient Egyptian mummy

    Publication Year: 1992, Page(s):13 - 17
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (379 KB)

    The visualization of the 3D shape of an ancient Egyptian mummy from CT images, and the analysis of the internal bony structure using a surgical simulation system are discussed. The applications of 3D image analysis to mummies by various research groups are outlined. The advantages of 3D image analysis of mummies are summarized.<> View full abstract»

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  • Generating irregularly oscillating fossil seashells

    Publication Year: 1992, Page(s):18 - 22
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (632 KB)

    The generation and representation of unusual growth patterns characteristic of certain extinct mollusks are discussed. The mathematical methods for biological pattern generation to render seashells on the computer and the software tools and hardware for the visualization of mathematical models of nature are described.<> View full abstract»

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  • A language for molecular visualization

    Publication Year: 1992, Page(s):23 - 32
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (815 KB)

    The features and implementation of Pdbq, a special-purpose, interpreted language based on the C programing language, are described. Pdbq provides data types, control structures, operators, and built-in functions for specifying visualization mappings. The language arose from research into the specification of novel geometries from molecular data. Pdbq's data types, flow control, built-in functions,... View full abstract»

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  • Rendering fireworks displays

    Publication Year: 1992, Page(s):33 - 43
    Cited by:  Papers (13)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1481 KB)

    A particle system technique to model, render, and animate realistic fireworks displays is presented. The attributes of the fireworks display that the particle system models are color, brightness, shape, trial, size, particle dynamics, blinking, mousing, star effect, spinning, and elasticity. A rendering engine that consists of various modules which individually handle a particular property of the ... View full abstract»

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  • Perceiving spatial relationships in computer-generated images

    Publication Year: 1992, Page(s):44 - 58
    Cited by:  Papers (81)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2654 KB)

    The sources of visual information that must be present to correctly interpret spatial relations in images, the relative importance of different visual information sources with regard to metric judgments of spatial relations in images, and the ways that the task in which the images are used affect the visual information's usefulness are discussed. Cue theory, which states that the visual system com... View full abstract»

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  • Data reduction using cubic rational B-splines

    Publication Year: 1992, Page(s):60 - 68
    Cited by:  Papers (14)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (596 KB)

    A geometric method for fitting rational cubic B-spline curves to data representing smooth curves, such as intersection curves or silhouette lines, is presented. The algorithm relies on the convex hull and on the variation diminishing properties of Bezier/B-spline curves. It is shown that the algorithm delivers fitting curves that approximate the data with high accuracy even in cases with large tol... View full abstract»

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  • Shape-based interpolation

    Publication Year: 1992, Page(s):69 - 79
    Cited by:  Papers (145)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1080 KB)

    Extensions to a shape-based interpolation method in which pixels that share a boundary edge (one inside and the other outside the object) are considered to be at a distance between adjacent pixel centers are proposed. Using such an initialization for distance calculations, a generalization of the chamfer distance calculation is developed. The generalization allows the simultaneous calculation of d... View full abstract»

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  • Jim Blinn's Corner-uppers and downers. 2. [graphics]

    Publication Year: 1992, Page(s):80 - 85
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (360 KB)

    The Feynman diagrams, which represent the product of tensors in diagram form as directed graphs, are described. In the diagrams, each tensor in the product is a node in the graph, each index is an arc, bound indices are arcs connecting the nodes, and free indices are dangling arcs. The epsilon-delta rule in diagram rotation is presented 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
The QED Group