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

25-29 Oct. 1993

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Displaying Results 1 - 25 of 56
  • Proceedings Visualization '93

    Publication Year: 1993
    Request permission for commercial reuse | PDF file iconPDF (88 KB)
    Freely Available from IEEE
  • HyperSlice

    Publication Year: 1993, Page(s):119 - 125
    Cited by:  Papers (44)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (708 KB)

    HyperSlice is a new method for the visualization of scalar functions of many variables. With this method the multi-dimensional function is presented in a simple and easy to understand way in which all dimensions are treated identically. The central concept is the representation of a multi-dimensional function as a matrix of orthogonal two-dimensional slices. These two-dimensional slices lend thems... View full abstract»

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  • An environment for telecollaborative data exploration

    Publication Year: 1993, Page(s):110 - 117
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (764 KB)

    This paper presents an environment for telecollaborative data exploration. It provides the following capabilities essential to data exploration: (1) users can probe the data, defining regions of interest with arbitrary shapes. (2) The selected data can be transformed and displayed in many different ways. (3) Linked cursors can be established between several windows showing data sets with arbitrary... 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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  • GRASPARC-A problem solving environment integrating computation and visualization

    Publication Year: 1993, Page(s):102 - 109
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    Visualization has proved an efficient tool in the understanding of large data sets in computational science and engineering. There is growing interest today in the development of problem solving environments which integrate both visualization and the computational process which generates the data. The GRASPARC project has looked at some of the issues involved in creating such an environment. An ar... View full abstract»

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  • Visualization and modelling of geophysical data

    Publication Year: 1993, Page(s):362 - 365
    Cited by:  Papers (1)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    We present the visualization and modeling techniques used in a case study to build feature-based computational models from geophysical data. Visualization was used to inspect the quality of the interpretation of the geophysical data. We describe the geophysical data graphical representation used to support rapid rendering and to enhance the perception differences between the interpretation of the ... View full abstract»

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  • Virtual input devices for 3D systems

    Publication Year: 1993, Page(s):142 - 148
    Cited by:  Papers (6)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    The device unified interface is a generalized and easily expandable protocol for the communication between applications and input devices. The key idea is to unify various device data into the parameters of a so-called "virtual input device." The device information-base, which includes device dependent information, is also incorporated into the virtual input device. Using the device unified interf... View full abstract»

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  • Flow volumes for interactive vector field visualization

    Publication Year: 1993, Page(s):19 - 24
    Cited by:  Papers (31)  |  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    Flow volumes are the volumetric equivalent of stream lines. They provide more information about the vector field being visualized than do stream lines or ribbons. Presented is an efficient method for producing flow volumes, composed of transparently rendered tetrahedra, for use in an interactive system. The problems of rendering, subdivision, sorting, composing artifacts, and user interaction are ... View full abstract»

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  • Bridging the gap between visualization and data management: A simple visualization management system

    Publication Year: 1993, Page(s):94 - 101
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    A prototype visualization management system is described which merges the capabilities of a database management system with any number of existing visualization packages such as AVS or IDL. The prototype uses the Postgres database management system to store and access Earth science data through a simple graphical browser. Data located in the database is visualized by automatically invoking a desir... View full abstract»

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  • 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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  • 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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  • Spray rendering: Visualization using smart particles

    Publication Year: 1993, Page(s):283 - 290
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    We propose a new framework for doing scientific visualization. The basis for this framework is a combination of particle systems and behavioral animation. Here, particles are not only affected by the field that they are in, but can also exhibit different programmed behaviors. An intuitive delivery system, based on virtual cans of spray paint, is also described to introduce the smart particles into... 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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  • 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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  • 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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  • Fast volume rendering of compressed data

    Publication Year: 1993, Page(s):11 - 18
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    Volume rendering has been proposed as a useful tool for extracting information from large datasets, where non-visual analysis alone may not be feasible. The scale of these applications implies that data management is an important issue that needs to be addressed. Most volume rendering algorithms, however, process data in raw, uncompressed form. In previous work, we introduced a compressed volume f... 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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  • 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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  • 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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  • 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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  • A climate simulation case study

    Publication Year: 1993, Page(s):397 - 401
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    A supercomputing-visualization facility for science and engineering applications was used for processing and visualizing supercomputer-generated data. This facility includes a vector-processing supercomputer, a graphics workstation, a general purpose workstation, a high-resolution color printer, a scanner, a film recorder, a video tape recorder, and a video laser disc recorder. The facility is usi... 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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  • 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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  • Cloud tracing in convection-diffusion systems

    Publication Year: 1993, Page(s):253 - 260
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    The paper describes a highly interactive method for computer visualization of simultaneous three-dimensional vector and scalar flow fields in convection-diffusion systems. This method allows a computational fluid dynamics user to visualize the basic physical process of dispersion and mixing rather than just the vector and scalar values computed by the simulation. It is based on transforming the ve... View full abstract»

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  • Data shaders

    Publication Year: 1993, Page(s):275 - 282
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB)

    The process of visualizing a scientific data set requires an extensive knowledge of the domain in which the data set is created. Because an in-depth knowledge of all scientific domains is not available to the creator of visualization software, a flexible and extensible visualization system is essential in providing a productive tool to the scientist. This paper presents a shading language, based o... View full abstract»

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