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
  • 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 a texture naming system: Identifying relevant dimensions of texture

    Publication Year: 1993, Page(s):220 - 227
    Cited by:  Papers (29)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    Recently, researchers have started using texture for data visualization. The rationale behind this is to exploit the sensitivity of the human visual system to texture in order to overcome the limitations inherent in the display of multidimensional data. A fundamental issue that must be addressed is what textural features are important in texture perception, and how they are used. We designed an ex... 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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  • A probe for local flow field visualization

    Publication Year: 1993, Page(s):39 - 45
    Cited by:  Papers (48)  |  Patents (4)
    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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  • 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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  • 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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  • Visualization of time-dependent flow fields

    Publication Year: 1993, Page(s):32 - 38
    Cited by:  Papers (13)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    Presently, there are very few visualization systems available for time-dependent flow fields. Although existing visualization systems for instantaneous flow fields may be used to view time-dependent flow fields at discrete points in time, the time variable is usually not considered in the visualization technique. We present a simple and effective approach for visualizing time-dependent flow fields... 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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  • Texture splats for 3D scalar and vector field visualization

    Publication Year: 1993, Page(s):261 - 266
    Cited by:  Papers (71)  |  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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  • 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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  • 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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  • Navigating large networks with hierarchies

    Publication Year: 1993, Page(s):204 - 210
    Cited by:  Papers (38)  |  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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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