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

Date 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
  • Cloud tracing in convection-diffusion systems

    Publication Year: 1993, Page(s):253 - 260
    Cited by:  Papers (5)
    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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  • Texture splats for 3D scalar and vector field visualization

    Publication Year: 1993, Page(s):261 - 266
    Cited by:  Papers (66)  |  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (960 KB)

    Volume visualization is becoming an important tool for understanding large 3D data sets. A popular technique for volume rendering is known as splatting. With new hardware architectures offering substantial improvements in the performance of rendering texture mapped objects, we present textured splats. An ideal reconstruction function for 3D signals is developed which can be used as a texture map f... 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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  • 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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  • Navigating large networks with hierarchies

    Publication Year: 1993, Page(s):204 - 210
    Cited by:  Papers (33)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    This paper is aimed at the exploratory visualization of networks where there is a strength or weight associated with each link, and makes use of any hierarchy present on the nodes to aid the investigation of large networks. It describes a method of placing nodes on the plane that gives meaning to their relative positions. The paper discusses how linking and interaction principles aid the user in t... 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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  • Visual feedback in querying large databases

    Publication Year: 1993, Page(s):158 - 165
    Cited by:  Papers (4)  |  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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  • HyperSlice

    Publication Year: 1993, Page(s):119 - 125
    Cited by:  Papers (23)
    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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  • Interactive visualization methods for four dimensions

    Publication Year: 1993, Page(s):196 - 203
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    Making accurate computer graphics representations of surfaces and volumes (2-manifolds and 3-manifolds) embedded in four-dimensional space typically involves complex and time-consuming computations. In order to make simulated worlds that help develop human intuition about the fourth dimensions, we need techniques that permit real-time, interactive manipulation of the most sophisticated depictions ... View full abstract»

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  • Volume sampled voxelization of geometric primitives

    Publication Year: 1993, Page(s):78 - 84
    Cited by:  Papers (26)  |  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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  • 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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  • Accelerating volume animation by space-leaping

    Publication Year: 1993, Page(s):62 - 69
    Cited by:  Papers (30)  |  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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  • 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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  • 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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  • 3D simulation of delivery

    Publication Year: 1993, Page(s):416 - 419
    Cited by:  Papers (5)
    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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  • 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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  • 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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  • 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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  • An architecture for rule-based visualization

    Publication Year: 1993, Page(s):236 - 243
    Cited by:  Papers (14)  |  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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  • Fast volume rendering of compressed data

    Publication Year: 1993, Page(s):11 - 18
    Cited by:  Papers (17)
    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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  • Orientation maps: Techniques for visualizing rotations

    Publication Year: 1993, Page(s):183 - 188
    Cited by:  Papers (5)
    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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  • 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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  • Flow volumes for interactive vector field visualization

    Publication Year: 1993, Page(s):19 - 24
    Cited by:  Papers (29)  |  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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