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International Conference on Virtual Systems and MultiMedia

作者： Joyce Wittur Susanne Kromker Heidelberg Graduate School of Mathematical and Computational Methods for the Sciences (HGS MathComp) Institute of European Art History (IEK) Heidelberg University Germany Visualization and Numerical Geometry Group (NGG) Interdisciplinary Center of Scientific Computing (IWR) Heidelberg University Heidelberg Germany

ISBN: (纸本)9781424448340

The Lorsch Abbey World Heritage Site is a good example for a detailed London Charter implementation guideline. The information system attempted here strives for a combination of architectural 3D-models based on physical remains with historical and recent source materials. It needs to be suited for sites with heterogeneous and sparse sources, which heavily rely on the interpretation and the possible combination of information. It shall also help to compare and re-evaluate older or differing interpretations of the site. Argumentation networks have been proven to be a useful tool in preparing data for this case study.

关键词： Information systems History Electronic mail visualization Multimedia systems Multimedia computing Art Computational geometry Information geometry Scientific computing

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visualization and the larger world of computer graphics what's happening out there?

Visualization and the larger world of computer graphics what...

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ACM SIGGRAPH 2008 Classes

作者： Rhyne, Theresa-Marie Center for Visualization and Analytics Department of Computer Science Renaissance Computing Institute's Engagement Facility Raleigh

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Transportation visualization 08

Transportation visualization

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ACM SIGGRAPH 2008 Classes

作者： Organizer, Class Rhyne, Theresa-Marie Manore, Michael Hughes, Ronald G. Center for Visualization and Analytics Renaissance Computing Institute's Engagement Facility North Carolina State University United States Transportation Research Board's Committee on Visualization in Transportation Independent Consultant AEC Visualization Visual Analytics Modeling and Simulation Institute for Transportation Research and Education North Carolina State University United States

ISBN: (纸本)9781450378451

This class will highlight how transportation planners, engineers and members of the Transportation Research Board's Committee on visualization in Transportation are using computer graphics techniques and interactive visual displays in their system planning, project design, construction and public involvement activities. Practical examples include the depiction of how three-dimensional models of alternate roundabout treatments in roadway designs are currently being used in conjunction with microsimulation models of driver-vehicle interactions to evaluate alternative crossing solutions for visually impaired pedestrians at roundabouts and channelized turn lanes. We would like to share some of our observations with the SIGGRAPH community to gain additional insight and foster future cross disciplinary interaction.

关键词： visualization

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A Parallel Multi-View Rendering Architecture

A Parallel Multi-View Rendering Architecture

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Brazilian Symposium on Computer Graphics and Image Processing

作者： Wallace Lages Carlucio Cordeiro Dorgival Guedes Deep Computing Visualization Center Universidade Federal de Minas Gerais Belo Horizonte Brasil

We present an architecture for rendering multiple views efficiently on a cluster of GPUs. The original scene is sampled by virtual cameras which are used later to reconstruct the desired views. We show that this image... 详细信息

ISBN: (纸本)9780769533582

关键词： Virtual cameras Rendering Building construction ARCHITECTURE Scalability ecosystem-based approach content-based image retrieval Art Therapy Parallel Lines View

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Ubiquitous interactive visualization of 3D mantle convection using a web-portal with Java and Ajax framework

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Visual Geosciences 2008年第1期13卷 105-115页

作者： Greensky, James B.S.G. Czech, Wojciech Walter Yuen, David A. Knox, Michael Richard Damon, Megan Rose Chen, Shi Steve Kameyama, M. Charley Laboratory of Computing Science and Engineering Minnesota Supercomputing Institute University of Minnesota Minneapolis MN 55455 United States Institute of Computer Science AGH University 31-005 Krakow Poland Scientific Integration and Visualization Office Code 610.3 NASA Goddard Space Flight Center Greenbelt MD 20770 United States Laboratory of Computational Geodynamics Graduate University of Chinese Academy of Sciences 100049 Beijing China Geodynamics Research Center Ehime University Matsuyama 790-8577 Japan

We have developed a new strategy and espouse a novel paradigm for large-scale computing and real-time interactive visualization. This philosophy calls for intense interactive sessions for a couple of hours at a time at the expense of storing data on many disk drives during regular or heroic runs on massively parallel systems. We have already carried out successfully real-time volume-rendering visualization by employing hundreds of processors for a grid with over 25 million unknowns. Both Cartesian and spherical 3D mantle convection are visualized. The volume-rendered images are viewed on a large display device, with many panels holding around 13 million pixels. We will employ a software strategy involving an hierarchical rendering service, which will have as software an Ajax interface for interactive visualization of large data sets on many different platforms from desktop PC's to hand-held devices, such as the OQO and the Nokia N-800. An option for stereo viewing is also implemented. We have installed a user interface as web application, using Java and Ajax framework in order to achieve over the Internet reasonable accessibility to our ongoing runs. Our goal is to expand the array of interactive devices, which will make it feasible to carry out ubiquitous visualization and monitoring of large-scale simulations or onsite events and to allow for collaborations across oceans. © Springer-Verlag 2008.

关键词： 3D mantle convection Ajax framework Hand-held device Java visualization

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ICEbox: Toward easy-to-use home networking

ICEbox: Toward easy-to-use home networking

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11th IFIP TC 13 International Conference on Human-Computer Interaction, INTERACT 2007

作者： Jeonghwa, Yang Edwards, W. Keith Graphics Visualization and Usability Center College of Computing Georgia Institute of Technology

ISBN: (纸本)9783540747994

Home networking is becoming an essential part of everyday life. However, empirical studies and consumer reports indicate that the complexities of configuring and maintaining the home network impose a high barrier for most householders. In this paper, we explore the sources of the complexity of the home network, and describe a solution we have built to address this complexity. We have developed a prototype network appliance that acts as a centralized point of control for the home network, providing device provisioning and reprovisioning, security, discovery, and monitoring. Our solution provides a simple physical UI for network control, using pointing to introduce new devices onto the network, and a physical lock to secure network access. Results of our user studies indicate that users found this appliance both useful and usable as a network configuration and management tool. © IFIP International Federation for Information Processing 2007.

关键词： Human computer interaction

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ICEbox: Toward easy-to-use home networking

ICEbox: Toward easy-to-use home networking

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11th IFIP TC 13 International Conference on Human-Computer Interaction, INTERACT 2007

作者： Yang, Jeonghwa Keith Edwards, W. Graphics Visualization and Usability Center College of Computing Georgia Institute of Technology United States

ISBN: (纸本)9783540747994

关键词： Home networks

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Feature Identification and Extraction in Function Fields

Feature Identification and Extraction in Function Fields

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9th Joint Eurographics/IEEE VGTC Symposium on visualization, EuroVis 2007

作者： Anderson, John C. Gosink, Luke J. Duchaineau, Mark A. Joy, Kenneth I. Institute for Data Analysis and Visualization Department of Computer Science University of California Davis United States Center for Applied Scientific Computing Lawrence Livermore National Laboratory

ISBN: (纸本)9783905673456

We present interactive techniques for identifying and extracting features in function fields. Function fields map points in n-dimensional Euclidean space to 1-dimensional scalar functions. Visual feature identification is accomplished by interactively rendering scalar distance fields, constructed by applying a function-space distance metric over the function field. Combining visual exploration with feature extraction queries, formulated as a set of function-space constraints, facilitates quantitative analysis and annotation. Numerous application domains give rise to function fields. We present results for two-dimensional hyperspectral images, and a simulated time-varying, three-dimensional air quality dataset. © The Eurographics Association 2007.

关键词： Air quality

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visualization and the larger world of computer graphics: What's happening out there?

TR News

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TR News 2007年第252期 20-23页

作者： Rhyne, Theresa-Marie Center for Visualization and Analytics Department of Computer Science Renaissance Computing Institute's Engagement Facility North Carolina State University Raleigh

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CFD computation of fan interaction noise

CFD computation of fan interaction noise

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ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007

作者： Grace, Sheryl M. Sondak, Douglas L. Dorney, Daniel J. Logue, Michaela Department of Aerospace and Mechanical Engineering Boston University 110 Cummington St. BostonMA02215 United States Scientific Computing and Visualization Boston University BostonMA02215 United States Fluid Dynamics Branch NASA Marshall Space Flight Center AL35812 United States Aerospace and Mechanical Engineering Department University of Notre Dame Notre DameIN45665 United States

ISBN: (纸本)0791843025

In this study, a 3-D, unsteady, Reynolds-averaged Navier- Stokes (RANS) CFD code coupled to an acoustic calculation is used to predict the contribution of the exit guide vanes to tonal fan noise downstream. The configuration investigated is that corresponding to the NASA Source Diagnostic Test (SDT) 22-in fan rig. One configuration from the SDT matrix is considered here: The approach condition, and outlet guide vane count designed for cut-off of the blade passage frequency. In this chosen configuration, there are 22 rotor blades and 54 stator blades. The stators are located 2.5 tip chords downstream of the rotor trailing edge. The RANS computations are used to obtain the spectra of the unsteady surface pressure on the exit guide vanes. The surface pressure at the blade passage frequency and its second harmonic are then integrated together with the Green's function for an annular duct to obtain the pressure at locations in the duct. Comparison of the computed sound power level at the exhaust plane with experiment show good agreement at the cut-on circumferential mode. The results from this investigation validate the use of the CFD code along with the acoustic model for downstream fan noise predictions. This validation enables future investigations such as the effect of duct variation on the exhaust tonal power level and the validity of using this method for predicting broadband noise levels. Copyright © 2007 by ASME.

关键词： Stators

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