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Visualization, 1993. Visualization '93, Proceedings., IEEE Conference on

25-29 Oct. 1993

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  • Proceedings Visualization '93

    Publication Year: 1993
    Request permission for commercial reuse | PDF file iconPDF (88 KB)
    Freely Available from IEEE
  • MRIVIEW: An interactive computational tool for investigation of brain structure and function

    Publication Year: 1993, Page(s):324 - 331
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (796 KB)

    MRIVIEW is a software system that uses image processing and visualization to provide neuroscience researchers with an integrated environment for combining functional and anatomical information. Key features of the software include semi-automated segmentation of volumetric head data and an interactive coordinate reconciliation method which utilizes surface visualization. The current system is a pre... View full abstract»

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  • Tioga: A database-oriented visualization tool

    Publication Year: 1993, Page(s):86 - 93
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    In the work we present a new architecture for visualization systems that is based on data base management system (DBMS) technology. By building on the mechanisms present in a next-generation DBMS, rather than merely on the capabilities of a standard file manager, we show that a simpler and more powerful visualization system can be constructed. We retain the popular "boxes and arrows" programming n... View full abstract»

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  • Visualization of acoustic lens data

    Publication Year: 1993, Page(s):316 - 323
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    3-dimensional data visualization from any input source involves the study and understanding of several steps. These steps include data acquisition, signal processing, image processing and image generation. Using a forward-looking high frequency sonar system (which focuses sound much like the eye focuses light), standard and non-standard data processing algorithms, and industry "standard" visualiza... View full abstract»

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  • Volume sampled voxelization of geometric primitives

    Publication Year: 1993, Page(s):78 - 84
    Cited by:  Papers (30)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (840 KB)

    We present a 3-D antialiasing algorithm for voxel-based geometric models. The technique band-limits the continuous object before sampling it at the desired 3-D raster resolution. By precomputing tables of filter values for different types and sizes of geometric objects, the algorithm is very efficient and has a complexity that is linear with the number of voxels generated. The algorithm not only c... View full abstract»

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  • The quantum Coulomb three-body problem - Visualization of simulation results and numerical methods

    Publication Year: 1993, Page(s):378 - 381
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    Some years ago it was established that the muon catalyzed fusion phenomenon could be used for the production of energy. This fact has been causing a rebirth of interest in the universal methods of solving the quantum Coulomb three-body problem. The adiabatic hyperspherical (AHS) approach considered in this joint project has definite advantages in comparison with other methods. The case study propo... View full abstract»

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  • Computer visualization of long genomic sequences

    Publication Year: 1993, Page(s):308 - 315
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    Human beings find it difficult to analyze local and global oligonucleotide patterns in the linear primary sequences of a genome. In this paper, we present a family of iterated function systems (IFS) that can be used to generate a set of visual models of a DNA sequence. A new visualization function, the W-curve, that is derived from this IFS family is introduced. Using W-curves, a user can readily ... View full abstract»

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  • Developing modular application builders to exploit MIMD parallel

    Publication Year: 1993, Page(s):134 - 141
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    Modular application builders (MABs), such as AVS and Iris Explorer are increasingly being used in the visualization community. Such systems can already place compute intensive modules on supercomputers in order to utilize their power. This paper details two major projects at EPCC which attempted to fully integrate the MAB concept with a distributed memory MIMD (DM-MIMD) environment. The work prese... View full abstract»

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  • Rapid exploration of curvilinear grids using direct volume rendering

    Publication Year: 1993, Page(s):70 - 77
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (756 KB)

    Fast techniques for direct volume rendering over curvilinear grids (common to computational fluid dynamics and finite element analysis) are developed. Three new projection methods that use polygon-rendering hardware for speed are presented and compared with each other and with previous methods for tetrahedral grids and rectilinear grids. A simplified algorithm for visibility ordering, based on a c... View full abstract»

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  • Visualization of turbulent flow with particles

    Publication Year: 1993, Page(s):46 - 52
    Cited by:  Papers (15)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    In this work a new method for visualization of three-dimensional turbulent flow using particle motion animation is presented. The method is based on Reynolds decomposition of a turbulent flow field into a convective and a turbulent motion. At each step of particle path generation a stochastic perturbation is added, resulting in random-walk motions of particles. A physical relation is established b... View full abstract»

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  • An architecture for rule-based visualization

    Publication Year: 1993, Page(s):236 - 243
    Cited by:  Papers (17)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (780 KB)

    In Rogowitz and Treinish (1993), we introduced an architecture for incorporating perceptual rules into the visualization process. In this architecture, higher-level descriptors of the data, metadata, flow to perceptual rules, which constrain visualization operations. In this paper, we develop a deeper analysis of the rules, the prerequisite metadata, and the system for enabling their operation View full abstract»

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  • Visualizing results of transient flow simulations

    Publication Year: 1993, Page(s):406 - 409
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    This work briefly describes our approach to visualize results of transient flow simulations in the application areas of groundwater flow and pollutant transport as well as compressible fluid flow in engine parts. The simulations use finite element data structures and can have geometries which change over time. We designed a client-server model to handle the huge amount of data that can be obtained... View full abstract»

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  • The virtual restoration of the Visir tomb

    Publication Year: 1993, Page(s):420 - 423
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    In the field of computer applications to archaeology, data visualization is one of the most recent and promising activity. The visual reconstruction obtained from partially or totally ruined data is a problem that archaeologists often face with during their work. The case we present here is the simulated reconstruction of a great Egyptian tomb of the VII century B.C. excavated in the rocky cliff o... View full abstract»

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  • The vision camera: An interactive tool for volume data exploration and navigation

    Publication Year: 1993, Page(s):25 - 30
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    In this work we focus on one of the key problems of scientific visualization, the object recognition dilemma. The necessity to pre-interpret application data in order to classify object surface voxels prior to rendering has prevented many visualization methods from becoming practical. We propose the concept of vision by visualization which integrates computer vision methods into the visualization ... View full abstract»

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  • DIVIDE: Distributed visual display of the execution of asynchronous, distributed algorithms on loosely-coupled parallel processors

    Publication Year: 1993, Page(s):166 - 173
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (804 KB)

    The issue of monitoring the execution of asynchronous, distributed algorithms on loosely-coupled parallel processor systems, is important for the purposes of (i) detecting inconsistencies and flaws in the algorithm, (ii) obtaining important performance parameters for the algorithm, and (iii) developing a conceptual understanding of the algorithm's behavior, for given input stimulus, through visual... View full abstract»

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  • Dichromatic color representations for complex display systems

    Publication Year: 1993, Page(s):212 - 219
    Cited by:  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    New display technologies have begun to provide more innovative and potentially powerful methods to present information to a viewer. However, many of these techniques struggle to deliver accurate full color. In this paper, we address this difficulty by employing the dichromatic theory of color reflection, which implies that many objects can be rendered accurately using only two primaries. Complex d... View full abstract»

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  • Fast analytical computation of Richard's smooth molecular surface

    Publication Year: 1993, Page(s):300 - 307
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (772 KB)

    An algorithm for rapid computation of Richards's smooth molecular surface is described. The entire surface is computed analytically, triangulated, and displayed at interactive rates. The faster speeds for our program have been achieved by algorithmic improvements, paralleling the computations, and by taking advantage of the special geometrical properties of such surfaces. Our algorithm is easily p... View full abstract»

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  • Fine-grain visualization algorithms in dataflow environments

    Publication Year: 1993, Page(s):126 - 133
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    Most of the current dataflow visualization systems are based on coarse-grain dataflow computing models. In this paper we propose a fine-grain dataflow model that takes advantage of data locality properties of many visualization algorithms. A fine-grain module works on small chunks of data one at a time by keeping a dynamically adjusted moving window on the input data stream. It is more memory effi... View full abstract»

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  • Visualization of oil reservoirs over a large range of scales as a catalyst for multi-disciplinary integration

    Publication Year: 1993, Page(s):366 - 369
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    We discuss a system which provides a single, unified model of oil and gas reservoirs that is used across a range of disciplines from geologists to reservoir engineers. It has to store, manipulate and display reservoir phenomena which are observed over several orders of magnitude from 1 mm to 10 km. We propose that the current capabilities of visualization, over this range of scales, can remove per... View full abstract»

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  • Accelerating volume animation by space-leaping

    Publication Year: 1993, Page(s):62 - 69
    Cited by:  Papers (33)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (716 KB)

    In this work we present a method for speeding the process of volume animation. It exploits coherency between consecutive images to shorten the path rays take through the volume. Rays are provided with the information needed to leap over the empty space and commence volume traversal at the vicinity of meaningful data. The algorithm starts by projecting the volume onto a C-buffer (coordinates-buffer... View full abstract»

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  • A probe for local flow field visualization

    Publication Year: 1993, Page(s):39 - 45
    Cited by:  Papers (48)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (960 KB)

    A probe for the interactive visualization of flow fields is presented. The probe can be used to visualize many characteristics of the flow in detail for a small region in the data set. The velocity and the local change of velocity (the velocity gradient tensor) are visualized by a set of geometric primitives. To this end, the velocity gradient tensor is transformed to a local coordinate frame, and... View full abstract»

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  • Orientation maps: Techniques for visualizing rotations

    Publication Year: 1993, Page(s):183 - 188
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    The set of possible orientations of a rigid three-dimensional object is a topological space with three degrees of freedom. This paper investigates the suitability of various techniques of visualizing this space. With a good technique the natural distance between orientations will be represented fairly accurately, and distortion to the "shape" of a collection of orientations induced by the change o... View full abstract»

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  • Applying observations of work activity in designing prototype data analysis tools

    Publication Year: 1993, Page(s):228 - 235
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (748 KB)

    Designers, implementers, and marketers of data analysis tools typically have different perspectives than end users. Consequently, data analysts often find themselves using tools focused on graphics and programming concepts rather than concepts which reflect their own domain and the context of their work. Some user studies focus on usability tests late in development; others observe work activity, ... View full abstract»

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  • Towards interactive steering, visualization and animation of unsteady finite element simulations

    Publication Year: 1993, Page(s):374 - 377
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    Progress towards interactive steering of the time-accurate, unsteady finite-element simulation program DYNA3D is reported. Rudimentary steering has been demonstrated in a distributed computational environment encompassing a supercomputer, multiple graphics workstations, and a single frame animation recorder. The coroutine facility of AVS (application visualization system from AVS Inc.) and softwar... View full abstract»

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  • 3D simulation of delivery

    Publication Year: 1993, Page(s):416 - 419
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    We show how to create 3D models of maternal pelvis and fetal head from magnetic resonance images (MRI). The models are used to simulate the progress of delivery in order to give a prognosis of successful labor View full abstract»

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