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Visualization, 1992. Visualization '92, Proceedings., IEEE Conference on

19-23 Oct. 1992

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Displaying Results 1 - 25 of 60
  • Proceedings. Visualization '92 (Cat. No.92CH3201-1)

    Publication Year: 1992
    Request permission for commercial reuse | PDF file iconPDF (40 KB)
    Freely Available from IEEE
  • Approximation and rendering of volume data using wavelet transforms

    Publication Year: 1992, Page(s):21 - 28
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB)

    A method is presented to obtain a unique shape description of an object by using wavelet transforms. Wavelet transform is a signal analysis technique which decomposes a signal using a family of functions having a local property in both time and frequency domains. A multiresolution expression of 3D volume data was first obtained by applying 3D orthogonal wavelet transforms, with the shape then bein... View full abstract»

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  • Grand challenge problems in visualization software

    Publication Year: 1992, Page(s):366 - 371
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB)

    Discusses issues relating to the complexity of scientific visualization software system implementation. It is argued that the complexity of current implementations of such systems may limit the utility for users because the interfaces typically require significant knowledge of the data being studied and the applicable visualization algorithms, as well as its infrastructure of graphics, imaging and... View full abstract»

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  • Interactive visualization of large scalar voxel fields

    Publication Year: 1992, Page(s):29 - 36
    Cited by:  Papers (9)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (840 KB)

    A technique is given allowing interactive visualization of large, scalar, discrete volume fields as semitransparent clouds `on the fly', i.e. without preprocessing. Interactivity is not restricted to geometric transformations, but includes all possible methods of processing the data. The system flexibly trades-off quality for performance at any desirable level. In particular, by using a scanline b... View full abstract»

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  • Automated design of virtual worlds for visualizing multivariate relations

    Publication Year: 1992, Page(s):283 - 290
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    Interactive visualization systems provide a powerful means to explore complex data, especially when coupled with 3-D interaction and display devices to produce virtual worlds. While designing a quality static 2-D visualization is already a difficult task for most users, designing an interactive 3-D one is even more challenging. To address this problem, AutoVisual, a research system that designs in... View full abstract»

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  • Improving visualization: theoretical and empirical foundations

    Publication Year: 1992, Page(s):372 - 374
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    Discusses the ways in which the understanding of visual perception could help improve the scientific visualization process. It is argued that as long as there is a human interface link to computer visualization systems, understanding how humans perceive information visually could help improve the quality and the effectiveness of the visualization process. The fields of visual physiology, psychophy... View full abstract»

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  • Interactive terrain rendering and volume visualization on the Princeton Engine

    Publication Year: 1992, Page(s):349 - 355
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (688 KB)

    The implementation of truly interactive volume visualization and terrain rendering algorithms on the Princeton Engine (PE) video supercomputer is described. The PE is a single-instruction multiple-data (SIMD) computer. Since it was originally developed as a real-time digital television system simulator, it possesses many of the attributes necessary for interactive visualization: high-resolution di... View full abstract»

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  • VISAGE: an object-oriented scientific visualization system

    Publication Year: 1992, Page(s):219 - 226
    Cited by:  Papers (8)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB)

    VISAGE, a scientific visualization system implemented in an object-oriented, message passing environment, is described. The system includes over 500 classes ranging from visualization and graphics to Xlib and Motif user interface. Objects are created using compiled C and interact through an interpreted scripting language. The result is a flexible yet efficient system that has found wide applicatio... View full abstract»

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  • Interactive splatting of nonrectilinear volumes

    Publication Year: 1992, Page(s):37 - 44
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB)

    Various techniques are described for achieving interactive direct volume rendering of nonrectilinear data sets using fast projection (splatting) methods. The use of graphics hardware, rendering approximations, parallelization and reduced resolution meshes are discussed. Results from the use of these techniques are presented in the form of color photos and comparative timings View full abstract»

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  • Display of scientific data structures for algorithm visualization

    Publication Year: 1992, Page(s):139 - 146
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (876 KB)

    A technique for defining graphical depictions for all the data types defined in an algorithm is presented. The ability to display arbitrary combinations of an algorithm's data objects in a common frame of reference, coupled with interactive control of algorithm execution, provides a powerful way to understand algorithm behavior. Type definitions are constrained so that all primitive values occurri... View full abstract»

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  • Case study: visualizing classical problems in CFD

    Publication Year: 1992, Page(s):436 - 440
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    A brief example of the visualization and quantification of a complex fluid interaction is presented in order to give one a feeling for the difficulty of dealing with geometrical and topological questions in three dimensions and time. To obtain a quantitative understanding, visiometric techniques, including thresholding, object isolation, ellipsoid fitting, abstraction, vector field line generation... View full abstract»

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  • Massively parallel isosurface extraction

    Publication Year: 1992, Page(s):77 - 83
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    Experiences during the investigation of parallel methods for faster isosurface generation on SIMD (single instruction stream, multiple data stream) machines are described. A sequential version of a well-known isosurfacing algorithm is algorithmically enhanced for a particular type of SIMD architecture. The SIMD implementation takes full advantage of the data parallel nature of the algorithm, and e... View full abstract»

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  • SuperGlue: a programming environment for scientific visualization

    Publication Year: 1992, Page(s):243 - 250
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    It is suggested that many existing platforms over emphasize ease-of-use and do not adequately address issues of extensibility. A visualization testbed, called SuperGlue, which is particularly suited for the rapid development of new visualization methods, was built. An interpreter supports rapid development of new code, and an extensive class hierarchy encourages code reuse. By explicitly designing... View full abstract»

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  • Virtual spacetime: an environment for the visualization of curved spacetimes via geodesic flows

    Publication Year: 1992, Page(s):291 - 298
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    An implementation of a virtual environment for visualizing the geometry of curved spacetime by the display of interactive geodesics is described. This technique displays the paths of particles under the influence of gravity as described by the general theory of relativity and is useful in the investigation of solutions to the field equations of that theory. A boom-mounted six-degree-of-freedom hea... View full abstract»

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  • Real virtual environment applications-now

    Publication Year: 1992, Page(s):375 - 379
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    Discusses efforts to develop virtual environment (VE) systems. The applications discussed are medical telesurgery, maintenance access, presence simulators, accounting visualizations, topographic visualizations and tools to assist developers in determining the value added of potential VE-based solutions View full abstract»

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  • Visualizing n-dimensional implications of two-dimensional design decisions

    Publication Year: 1992, Page(s):356 - 360
    Cited by:  Papers (2)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    Experiments in visualizing implications of landscape planning and design decisions using a combination of GIS, CAD, and video animation technology are described. Simple grid-cell GIS databases and site-scale polygonal models are used to provide visualizations of site planning design proposals and environmental impact, with both static and animated images. Rather than pursuing photo-realistic simul... View full abstract»

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  • Improving the visualization of hierarchies with treemaps: design issues and experimentation

    Publication Year: 1992, Page(s):124 - 131
    Cited by:  Papers (20)  |  Patents (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1128 KB)

    Controlled experiments with novice treemap users and real data highlight the strengths of treemaps and provide direction for improvement. Issues discussed include experimental results, layout algorithms, nesting offsets, labeling, animation, and small multiple displays. Treemaps prove to be a potent tool for hierarchy display. The principles discussed are applicable to many information visualizati... View full abstract»

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  • A 3-D streamline tracking algorithm using dual stream functions

    Publication Year: 1992, Page(s):62 - 68
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    A methodology has been developed for constructing streamlines and particle paths in numerically generated fluid velocity fields. A graphical technique is used to convert the discretely defined flow within a cell into one represented by two three-dimensional stream functions. Streamlines are calculated by tracking constant values of each stream function, a process which corresponds to finding the i... View full abstract»

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  • A scientific visualization renderer

    Publication Year: 1992, Page(s):227 - 234
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    While scientific visualization systems share many requirements with other graphical applications, they also have special requirements that make solutions based on standard rendering hardware or software not entirely satisfactory. Those requirements are illustrated by describing the renderer used in a production scientific visualization system, Data Explorer. The requirements for a visualization re... View full abstract»

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  • An architecture for a scientific visualization system

    Publication Year: 1992, Page(s):107 - 114
    Cited by:  Papers (42)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (812 KB)

    The architecture of the Data Explorer, a scientific visualization system, is described. Data Explorer supports the visualization of a wide variety of data by means of a flexible set of visualization modules. A single powerful data model common to all modules allows a wide range of data types to be imported and passed between modules. There is integral support for parallelism, affecting the data mo... View full abstract»

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  • Virtual Smoke: an interactive 3D flow visualization technique

    Publication Year: 1992, Page(s):46 - 53
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    A technique is given for computer visualization of simultaneous three-dimensional vector and scalar fields such as velocity and temperature in reacting fluid flow fields. The technique, which is called Virtual Smoke, simulates the use of colored smoke for experimental gaseous fluid flow visualization. However, it is noninvasive and can animate, in particular, the dynamic behaviors of steady-state ... View full abstract»

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  • Representing medical images with partitioning trees

    Publication Year: 1992, Page(s):147 - 154
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (748 KB)

    The binary space partitioning tree is a method of converting a discrete space representation to a particular continuous space representation. The conversion is accomplished using standard discrete space operators developed for edge detection, followed by a Hough transform to generate candidate hyperplanes that are used to construct the partitioning tree. The result is a segmented and compressed im... View full abstract»

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  • Flow visualization as a basic tool to investigate the dynamics and topology of jets

    Publication Year: 1992, Page(s):164 - 170
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (724 KB)

    Issues and difficulties involved in the practical implementation of flow visualization techniques based on a database generated in numerical simulations of unsteady square jets are addressed. Instantaneous visualizations provide basic information on the topological features of the flow, while animation of these visualizations gives an insight into the detailed dynamics of formation, development, a... View full abstract»

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  • Visualizing wind velocities by advecting cloud textures

    Publication Year: 1992, Page(s):179 - 184
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (920 KB)

    In order to visualize both clouds and wind in climate simulations, clouds were rendered using a 3D texture which was advected by the wind flow. The simulation is described. Rendering, the advection of texture coordinates, and haze effects are discussed. Results are presented View full abstract»

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  • Visualizing a three dimensional hydrodynamic model

    Publication Year: 1992, Page(s):441 - 445
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    A three-dimensional finite-element hydrodynamic model was constructed to simulate tidal cycles in Galveston Bay over a one-year period in order to view changes in water velocities and salinity. A project undertaken to visualize the simulation results is reported. The project comprised analyzing model requirements and determining suitable visualization techniques, visualizing a preliminary, smaller... View full abstract»

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