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

25-29 Oct. 1993

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  • Proceedings Visualization '93

    Publication Year: 1993
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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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  • 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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  • 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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  • GRASPARC-A problem solving environment integrating computation and visualization

    Publication Year: 1993, Page(s):102 - 109
    Cited by:  Papers (21)
    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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  • 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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  • Enhancing reality in the operating room

    Publication Year: 1993, Page(s):410 - 415
    Cited by:  Papers (22)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (900 KB)

    Three dimensional computer models of the anatomy generated from volume acquisitions of computed tomography and magnetic resonance imaging are useful adjuncts to 2D images. This paper describes a system that merges the computer generated 3D models with live video to enhance the surgeon's understanding of the anatomy beneath the surface. The system can be used as a planning aid before the operation ... View full abstract»

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  • Fanal: A relational analysis and visualization package for high energy physics

    Publication Year: 1993, Page(s):382 - 385
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (324 KB)

    The package described in this paper has been designed for analyzing the data collected in the LEP experiment ALEPH. Its main graphical feature is a deep interplay between the description of the objects manipulated and their relationships, and their graphical representation. The easy access to information through navigation between objects and its display makes possible a thorough study of the even... 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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  • 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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  • Interactive shading for surface and volume visualization on graphics workstations

    Publication Year: 1993, Page(s):291 - 298
    Cited by:  Papers (2)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (728 KB)

    Shading is an effective exploratory visualization tool widely used in scientific visualization. Interactive, or close to interactive, shading of images offers significant benefit, but is generally too computationally expensive for graphics workstations. A novel method for providing interactive diffuse and specular shading capability on low-cost graphics workstations is described. Application to di... 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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  • Feature extraction for oceanographic data using a 3D edge operator

    Publication Year: 1993, Page(s):402 - 405
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (420 KB)

    The features of greatest interest in ocean modeling in the Gulf of Mexico and along the Gulf Stream are the fronts and eddies. Resolving, modeling, and tracking these eddies over time is of great importance for climatological studies and economic advancement. In this paper we present a novel technique for automatically locating, contouring, and tracking oceanic features such as eddies and fronts. ... View full abstract»

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  • Geometric clipping using Boolean textures

    Publication Year: 1993, Page(s):268 - 274
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1040 KB)

    Texture mapping is normally used to convey geometric detail without adding geometric complexity. This paper introduces Boolean textures, a texture mapping technique that uses implicit functions to generate texture maps and texture coordinates. These Boolean textures perform clipping during a renderer's scan conversion step. Any implicit function is a candidate Boolean texture clipper. The paper de... 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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  • 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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  • HyperSlice

    Publication Year: 1993, Page(s):119 - 125
    Cited by:  Papers (47)
    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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  • 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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  • 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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  • 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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  • Geometric optimization

    Publication Year: 1993, Page(s):189 - 195
    Cited by:  Papers (35)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (600 KB)

    An algorithm is presented which describes an application independent method for reducing the number of polygonal primitives required to faithfully represent an object. Reducing polygon count without a corresponding reduction in object detail is important for: achieving interactive frame rates in scientific visualization, reducing mass storage requirements, and facilitating the transmission of larg... View full abstract»

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  • Performance visualization of parallel programs

    Publication Year: 1993, Page(s):174 - 181
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (860 KB)

    The user of a parallel computer system would like to know the performance of a program in terms of how optimally it uses the system resources. This task is increasingly performed by program performance visualization. The limitations of conventional performance data analysis techniques necessitate better visual analysis methods that are scalable with the problem and system sizes and extensible. The... View full abstract»

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  • Accelerating volume animation by space-leaping

    Publication Year: 1993, Page(s):62 - 69
    Cited by:  Papers (37)  |  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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  • Visual feedback in querying large databases

    Publication Year: 1993, Page(s):158 - 165
    Cited by:  Papers (5)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1240 KB)

    In this paper, we describe a database query system that provides visual relevance feedback in querying large databases. The goal of our system is to support the query specification process by using each pixel of the display to represent one data item of the database. By arranging and coloring the pixels according to their relevance for the query, the user gets a visual impression of the resulting ... 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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