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IEEE Transactions on Visualization and Computer Graphics

Issue 2 • Date Feb. 2011

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Displaying Results 1 - 18 of 18
  • [Front cover]

    Publication Year: 2011, Page(s): c1
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  • [Inside front cover]

    Publication Year: 2011, Page(s): c2
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  • Editor's Note

    Publication Year: 2011, Page(s): 129
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  • Guest Editor's Introduction: Special Section on the Eurographics Symposium on Parallel Graphics and Visualization (EGPGV)

    Publication Year: 2011, Page(s):130 - 131
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  • GPU-Based Multilevel Clustering

    Publication Year: 2011, Page(s):132 - 145
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1783 KB) | HTML iconHTML

    The processing power of parallel coprocessors like the Graphics Processing Unit (GPU) is dramatically increasing. However, until now only a few approaches have been presented to utilize this kind of hardware for mesh clustering purposes. In this paper, we introduce a Multilevel clustering technique designed as a parallel algorithm and solely implemented on the GPU. Our formulation uses the spatial... View full abstract»

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  • Parallel Iteration to the Radiative Transport in Inhomogeneous Media with Bootstrapping

    Publication Year: 2011, Page(s):146 - 158
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2377 KB) | HTML iconHTML

    This paper presents a fast parallel method to solve the radiative transport equation in inhomogeneous participating media. We apply a novel approximation scheme to find a good initial guess for both the direct and scattered components. Then, the initial approximation is used to bootstrap an iterative multiple scattering solver, i.e., we let the iteration concentrate just on the residual problem. T... View full abstract»

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  • Efficient Rasterization for Outdoor Radio Wave Propagation

    Publication Year: 2011, Page(s):159 - 170
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1436 KB) | HTML iconHTML

    Conventional beam tracing can be used for solving global illumination problems. It is an efficient algorithm and performs very well when implemented on the GPU. This allows us to apply the algorithm in a novel way to the problem of radio wave propagation. The simulation of radio waves is conceptually analogous to the problem of light transport. We use a custom, parallel rasterization pipeline for ... View full abstract»

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  • Feature-Preserving Volume Data Reduction and Focus+Context Visualization

    Publication Year: 2011, Page(s):171 - 181
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3389 KB) | HTML iconHTML Multimedia Media

    The growing sizes of volumetric data sets pose a great challenge for interactive visualization. In this paper, we present a feature-preserving data reduction and focus+context visualization method based on transfer function driven, continuous voxel repositioning and resampling techniques. Rendering reduced data can enhance interactivity. Focus+context visualization can show details of selected fea... View full abstract»

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  • Relation-Aware Isosurface Extraction in Multifield Data

    Publication Year: 2011, Page(s):182 - 191
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1505 KB) | HTML iconHTML

    We introduce a variation density function that profiles the relationship between multiple scalar fields over isosurfaces of a given scalar field. This profile serves as a valuable tool for multifield data exploration because it provides the user with cues to identify interesting isovalues of scalar fields. Existing isosurface-based techniques for scalar data exploration like Reeb graphs, contour s... View full abstract»

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  • Visibility Histograms and Visibility-Driven Transfer Functions

    Publication Year: 2011, Page(s):192 - 204
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2828 KB) | HTML iconHTML Multimedia Media

    Direct volume rendering is an important tool for visualizing complex data sets. However, in the process of generating 2D images from 3D data, information is lost in the form of attenuation and occlusion. The lack of a feedback mechanism to quantify the loss of information in the rendering process makes the design of good transfer functions a difficult and time consuming task. In this paper, we pre... View full abstract»

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  • Spatial Generalization and Aggregation of Massive Movement Data

    Publication Year: 2011, Page(s):205 - 219
    Cited by:  Papers (77)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3963 KB) | HTML iconHTML

    Movement data (trajectories of moving agents) are hard to visualize: numerous intersections and overlapping between trajectories make the display heavily cluttered and illegible. It is necessary to use appropriate data abstraction methods. We suggest a method for spatial generalization and aggregation of movement data, which transforms trajectories into aggregate flows between areas. It is assumed... View full abstract»

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  • A Perception Correlated Comparison Method for Dynamic Meshes

    Publication Year: 2011, Page(s):220 - 230
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2758 KB) | HTML iconHTML

    There are multiple areas of computer graphics where triangular meshes are being altered in order to reduce their size or complexity, while attempting to preserve the original shape of the mesh as closely as possible. Recently, this area of research has been extended to cover even a dynamic case, i.e., surface animations which are compressed and simplified. However, to date very little effort has b... View full abstract»

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  • Geometry Synthesis on Surfaces Using Field-Guided Shape Grammars

    Publication Year: 2011, Page(s):231 - 243
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4197 KB) | HTML iconHTML

    We show how to model geometric patterns on surfaces. We build on the concept of shape grammars to allow the grammars to be guided by a vector or tensor field. Our approach affords greater artistic freedom in design and enables the use of grammars to create patterns on manifold surfaces. We show several application examples in visualization, anisotropic tiling of mosaics, and geometry synthesis on ... View full abstract»

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  • Directing Crowd Simulations Using Navigation Fields

    Publication Year: 2011, Page(s):244 - 254
    Cited by:  Papers (46)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2045 KB) | HTML iconHTML Multimedia Media

    We present a novel approach to direct and control virtual crowds using navigation fields. Our method guides one or more agents toward desired goals based on guidance fields. The system allows the user to specify these fields by either sketching paths directly in the scene via an intuitive authoring interface or by importing motion flow fields extracted from crowd video footage. We propose a novel ... View full abstract»

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  • The Effect on Lower Spine Muscle Activation of Walking on a Narrow Beam in Virtual Reality

    Publication Year: 2011, Page(s):255 - 259
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB) | HTML iconHTML

    To what extent do people behave in immersive virtual environments as they would in similar situations in a physical environment? There are many ways to address this question, ranging from questionnaires, behavioral studies, and the use of physiological measures. Here, we compare the onsets of muscle activity using surface electromyography (EMG) while participants were walking under three different... View full abstract»

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  • Erratum to “How Information Visualization Novices Construct Visualizations”

    Publication Year: 2011, Page(s): 260
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  • TVCG Information for authors

    Publication Year: 2011, Page(s): c3
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  • [Back cover]

    Publication Year: 2011, Page(s): c4
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Aims & Scope

Visualization techniques and methodologies; visualization systems and software; volume visualization; flow visualization; multivariate visualization; modeling and surfaces; rendering; animation; user interfaces; visual progranuning; applications.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Leila De Floriani
Department of Computer Science, Bioengineering, Robotics and Systems Engineering
University of Genova
16146 Genova (Italy)
ldf4tvcg@umiacs.umd.edu