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IEEE Computer Graphics and Applications

Issue 5 • Sept. 1994

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Displaying Results 1 - 10 of 10
  • Visualizing nerve cells

    Publication Year: 1994, Page(s):11 - 13
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (246 KB)

    We have developed a comprehensive volume visualization system called VolVis. VolVis is a general-purpose system of potential use in any field that needs to visualize 3D sampled, computed, or modeled data. However, in this paper we concentrate on applying VolVis visualization capabilities to neurobiology, specifically to visualizing cellular structure, calcium, and multiple labels.<> View full abstract»

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  • Biometric recognition: our hands, eyes, and faces give us away

    Publication Year: 1994, Page(s):14 - 15
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (246 KB)

    The author considers how there are a growing number of applications of automated fingerprint identification. He discusses several other biometric methods of identification, including hand, facial, and eye recognition. For some applications, these methods are better than fingerprint identification, since they require smaller data signatures, may cost less, and avoid the criminal stigma of fingerpri... View full abstract»

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  • Computing smooth molecular surfaces

    Publication Year: 1994, Page(s):19 - 25
    Cited by:  Papers (88)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (679 KB)

    We consider how we set out to formulate a parallel analytical molecular surface algorithm that has expected linear complexity with respect to the total number of atoms in a molecule. To achieve this goal, we avoided computing the complete 3D regular triangulation over the entire set of atoms, a process that takes time O(n log n), where n is the number of atoms in the molecule. We aim to compute an... View full abstract»

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  • Volume-sampled 3D modeling

    Publication Year: 1994, Page(s):26 - 32
    Cited by:  Papers (43)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1077 KB)

    We present a 3D object-space antialiasing technique for volume graphics. Our approach performs antialiasing once-on a 3D view-independent representation-as part of the modeling stage. Unlike antialiasing of 2D scan-converted graphics, where the main focus is on generating aesthetically pleasing displays, antialiasing of 3D voxelized graphics emphasizes the production of alias-free 3D models for va... View full abstract»

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  • Three ways to show 3D fluid flow

    Publication Year: 1994, Page(s):33 - 39
    Cited by:  Papers (12)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (678 KB)

    Visualizing 3D fluid flow fields presents a challenge to scientific visualization, mainly because no natural visual representation of 3D vector fields exists. We can readily recognize geometric objects, color, and texture: unfortunately for computational fluid dynamics (CFD) researchers, vector fields are harder to grasp. Thus, we must construct simplified representations that human observers can ... View full abstract»

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  • VisDB: database exploration using multidimensional visualization

    Publication Year: 1994, Page(s):40 - 49
    Cited by:  Papers (82)  |  Patents (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1041 KB)

    Discusses how the VisDB system supports the query specification process by representing the result visually. The main idea behind the system stems from the view of relational database tables as sets of multidimensional data where the number of attributes corresponds to the number of dimensions. In such a view, it is often unclear. In this system, each display pixel represents one database item. Pi... View full abstract»

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  • Vector field visualization

    Publication Year: 1994, Page(s):50 - 56
    Cited by:  Papers (14)  |  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (617 KB)

    We present two new techniques for rendering 3D vector fields in scientific visualisation. We also present a new technique called texture splats for rendering these volumes efficiently.<> View full abstract»

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  • Spray rendering

    Publication Year: 1994, Page(s):57 - 63
    Cited by:  Papers (8)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    Spray rendering provides a framework for creating and experimenting with different visualization techniques. The name spray rendering is derived from the metaphor of using a virtual spray can to paint data sets. Varying the type of paint in the can highlights data in different ways. Spray rendering is not limited to the paint metaphor, however. Other useful metaphors include a flashlight and a pro... View full abstract»

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  • Experiments with curvature-continuous patch-boundary fitting

    Publication Year: 1994, Page(s):64 - 73
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB)

    We present an approach which uses constrained least squares and variable projection to fit B-splines to lines of data, then segments the fit by inserting knots to produce Bezier curves. We present some sample results of our modeler called Autoshape and then compare them with results from a conventional approach.<> View full abstract»

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  • Compositing. 1. Theory

    Publication Year: 1994, Page(s):83 - 87
    Cited by:  Papers (29)  |  Patents (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    Associating a pixel's color with its opacity is the basis for a compositing function that is simple, elegant, and general. However, there are more reasons than mere prettiness to store pixels this way. One of the most important anti-aliening tools in computer graphics comes from a generalization of the simple act of storing a pixel into a frame buffer. Several people simultaneously discovered the ... 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
University of Iowa