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Visualization, 1994., Visualization '94, Proceedings., IEEE Conference on

21-21 Oct. 1994

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  • Proceedings Visualization '94

    Publication Year: 1994
    Request permission for commercial reuse | PDF file iconPDF (20 KB)
    Freely Available from IEEE
  • Visualizing flow with quaternion frames

    Publication Year: 1994, Page(s):108 - 115, CP11
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    Flow fields, geodesics, and deformed volumes are natural sources of families of space curves that can be characterized by intrinsic geometric properties such as curvature, torsion, and Frenet frames. By expressing a curve's moving Frenet coordinate frame as an equivalent unit quaternion, we reduce the number of components that must be displayed from nine with six constraints to four with one const... View full abstract»

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  • Mix&Match: a construction kit for visualization

    Publication Year: 1994, Page(s):302 - 309, CP34
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (712 KB)

    We present an environment in which users can interactively create different visualization methods. This modular and extensible environment encapsulates most of the existing visualization algorithms. Users can easily construct new visualization methods by combining simple, fine grain building blocks. These components operate on a local subset of the data and generally either look for target feature... View full abstract»

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  • Fast surface rendering from raster data by voxel traversal using chessboard distance

    Publication Year: 1994, Page(s):188 - 195, CP21
    Cited by:  Papers (15)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (856 KB)

    The increasing distinguishing capability of tomographic and other 3D scanners as well as the new voxelization algorithms place new demands on visualization techniques aimed at interactivity and rendition quality. Among others, triangulation on a subvoxel level based on the marching cube algorithm has gained popularity in recent years. However without graphics hardware support, rendering many small... View full abstract»

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  • Feature detection from vector quantities in a numerically simulated hypersonic flow field in combination with experimental flow visualization

    Publication Year: 1994, Page(s):117 - 123, CP12
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    In computational fluid dynamics visualization is a frequently used tool for data evaluation, understanding of flow characteristics, and qualitative comparison to flow visualizations originating from experiments. Building on an existing visualization software system, that allows for a careful selection of state-of-the-art visualization techniques and some extensions, it became possible to present v... View full abstract»

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  • A lattice model for data display

    Publication Year: 1994, Page(s):310 - 317
    Cited by:  Papers (11)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    In order to develop a foundation for visualization, we develop lattice models for data objects and displays that focus on the fact that data objects are approximations to mathematical objects and real displays are approximations to ideal displays. These lattice models give us a way to quantize the information content of data and displays and to define conditions on the visualization mappings from ... View full abstract»

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  • Parallel performance measures for volume ray casting

    Publication Year: 1994, Page(s):196 - 203
    Cited by:  Papers (5)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    Describes a technique for achieving fast volume ray-casting on parallel machines, using a load-balancing scheme and an efficient pipelined approach to compositing. We propose a new model for measuring the amount of work one needs to perform in order to render a given volume, and we use this model to obtain a better load-balancing scheme for distributed memory machines. We also discuss in detail th... View full abstract»

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  • A library for visualizing combinatorial structures

    Publication Year: 1994, Page(s):164 - 171, CP18
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    Describes ANIM3D, a 3D animation library targeted at visualizing combinatorial structures. In particular, we are interested in algorithm animation. Constructing a new view for an algorithm typically takes dozens of design iterations, and can be very time-consuming. Our library eases the programmer's burden by providing high-level constructs for performing animations, and by offering an interpretiv... View full abstract»

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  • 3D visualization of unsteady 2D airplane wake vortices

    Publication Year: 1994, Page(s):124 - 131, CP13
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (780 KB)

    Air flowing around the wing tips of an airplane forms horizontal tornado-like vortices that can be dangerous to following aircraft. The dynamics of such vortices, including ground and atmospheric effects, can be predicted by numerical simulation, allowing the safety and capacity of airports to be improved. We introduce three-dimensional techniques for visualizing time-dependent, two-dimensional wa... View full abstract»

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  • An object oriented design for the visualization of multi-variable data objects

    Publication Year: 1994, Page(s):318 - 325, CP35
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    This paper presents an object-oriented system design supporting the composition of scientific data visualization techniques based on the definition of hierarchies of typed data objects and tools. Traditional visualization systems focus on creating graphical objects which often cannot be re-used for further processing. Our approach provides objects of different topological dimension to offer a natu... View full abstract»

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  • Integrated control of distributed volume visualization through the World-Wide-Web

    Publication Year: 1994, Page(s):13 - 20
    Cited by:  Papers (7)  |  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB)

    The World-Wide-Web (WWW) has created a new paradigm for online information retrieval by providing immediate and ubiquitous access to digital information of any type from data repositories located throughout the world. The web's development enables not only effective access for the generic user but also more efficient and timely information exchange among scientists and researchers. We have extende... View full abstract»

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  • Challenges and opportunities in visualization for NASA's EOS Mission to Planet Earth

    Publication Year: 1994, Page(s):392 - 395
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    Visualization will be vital to the success of the NASA EOS Mission to Planet Earth (MTPE), which will gather, generate, and distribute an unprecedented volume of data for the purpose of global change research and environmental policy decisions. The paper focuses on the challenges and opportunities for visualization with regard to the Mission to Planet Earth. Directions presently being taken within... View full abstract»

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  • Spiders: a new user interface for rotation and visualization of n-dimensional point sets

    Publication Year: 1994, Page(s):205 - 211, CP22
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    We present a new method for creating n-dimensional rotation matrices from manipulating the projections of n-dimensional data coordinate axes onto a viewing plane. A user interface for n-dimensional rotation is implemented. The interface is shown to have no rotational hysteresis View full abstract»

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  • Visualization of mesoscale flow features in ocean basins

    Publication Year: 1994, Page(s):355 - 358, CP39
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    Environmental issues such as global warming are an active area of international research and concern today. This case study describes various visualization paradigms that have been developed and applied in an attempt to elucidate the information provided by environmental models and observations. The ultimate goal is to accurately measure the existence of any long term climatological change. The gl... View full abstract»

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  • Progressive transmission of scientific data using biorthogonal wavelet transform

    Publication Year: 1994, Page(s):93 - 99, CP9
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    An important issue in scientific visualization systems is the management of data sets. Most data sets in scientific visualization, whether created by measurement or simulation, are usually voluminous. The goal of data management is to reduce the storage space and the access time of these data sets to speed up the visualization process. A new progressive transmission scheme using spline biorthogona... View full abstract»

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  • Strata-various: multi-layer visualization of dynamics in software system behavior

    Publication Year: 1994, Page(s):172 - 178, CP19
    Cited by:  Papers (13)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    Current software visualization tools are inadequate for understanding, debugging, and tuning realistically complex applications. These tools often present only static structure, or they present dynamics from only a few of the many layers of a program and its underlying system. This paper introduces “PV”, a prototype program visualization system which provides concurrent visual presenta... View full abstract»

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  • GASP-a system for visualizing geometric algorithms

    Publication Year: 1994, Page(s):149 - 155, CP16
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB)

    This paper describes a system, GASP, that facilitates the visualization of geometric algorithms. The user need not have any knowledge of computer graphics in order to quickly generate a visualization. The system is also intended to facilitate the task of implementing and debugging geometric algorithms. The viewer is provided with a comfortable user interface enhancing the exploration of an algorit... View full abstract»

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  • Vortex tubes in turbulent flows: identification, representation, reconstruction

    Publication Year: 1994, Page(s):132 - 139, CP14
    Cited by:  Papers (28)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    A new algorithm for identifying vortices in complex flows is presented. The scheme uses both the vorticity and pressure fields. A skeleton line along the center of a vortex is produced by a two-step predictor-corrector scheme. The technique uses the vector field to move in the direction of the skeleton line and the scalar field to correct the location in the plane perpendicular to the skeleton lin... View full abstract»

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  • Validation, verification and evaluation

    Publication Year: 1994, Page(s):414 - 418
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    A discussion is given on the validation, verification and evaluation of scientific visualization software. A “bug” usually refers to software doing something different than the programmer intended. Comprehensive testing, especially for software intended for use in innovative environments, is hard. Descriptions and summaries of the tests we have done are often not available to the users... View full abstract»

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  • Volume rendering methods for computational fluid dynamics visualization

    Publication Year: 1994, Page(s):232 - 239, CP26
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    The paper describes three alternative volume rendering approaches to visualizing computational fluid dynamics (CFD) data. One new approach uses realistic volumetric gas rendering techniques to produce photo-realistic images and animations from scalar CFD data. The second uses ray casting that is based an a sampler illumination model and is mainly centered around a versatile new tool for the design... View full abstract»

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  • Visualizing 3D velocity fields near contour surfaces

    Publication Year: 1994, Page(s):248 - 255, CP28
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (900 KB)

    Vector field rendering is difficult in 3D because the vector icons overlap and hide each other. We propose four different techniques for visualizing vector fields only near surfaces. The first uses motion blurred particles in a thickened region around the surface. The second uses a voxel grid to contain integral curves of the vector field. The third uses many antialiased lines through the surface,... View full abstract»

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  • The design and implementation of the Cortex visualization system

    Publication Year: 1994, Page(s):265 - 272, CP30
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    Cortex has been designed for interactive analysis and display of simulation data generated by CFD applications based on unstructured-grid solvers. Unlike post-processing visualization environments, Cortex is designed to work in co-processing mode with the CFD application. This significantly reduces data storage and data movement requirements for visualization and also allows users to interactively... View full abstract»

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  • XmdvTool: integrating multiple methods for visualizing multivariate data

    Publication Year: 1994, Page(s):326 - 333
    Cited by:  Papers (124)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    Much of the attention in visualization research has focussed on data rooted in physical phenomena, which is generally limited to three or four dimensions. However, many sources of data do not share this dimensional restriction. A critical problem in the analysis of such data is providing researchers with tools to gain insights into characteristics of the data, such as anomalies and patterns. Sever... View full abstract»

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  • A distributed, parallel, interactive volume rendering package

    Publication Year: 1994, Page(s):21 - 30, CP2
    Cited by:  Papers (9)  |  Patents (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    This paper presents a parallel ray-casting volume rendering algorithm and its implementation on the massively parallel IBM SP-1 computer using the Chameleon message passing library. Though this algorithm takes advantage of many of the unique features of the SP-1 (e.g. high-speed switch, large memory per node, high-speed disk array, HIPPI display, et al.), the use of Chameleon allows the code to be... View full abstract»

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  • Discretized Marching Cubes

    Publication Year: 1994, Page(s):281 - 287, CP32
    Cited by:  Papers (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    Since the introduction of standard techniques for isosurface extraction from volumetric datasets, one of the hardest problems has been to reduce the number of triangles (or polygons) generated. The paper presents an algorithm that considerably reduces the number of polygons generated by a Marching Cubes-like scheme (W. Lorensen and H. Cline, 1987) without excessively increasing the overall computa... View full abstract»

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