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IEEE Transactions on Visualization and Computer Graphics

Issue 2 • Date March-April 2009

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Displaying Results 1 - 20 of 20
  • [Front cover]

    Publication Year: 2009, Page(s): c1
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  • [Inside front cover]

    Publication Year: 2009, Page(s): c2
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  • Guest Editors' Introduction: Special Section on The International Symposium on Mixed and Augmented Reality (ISMAR)

    Publication Year: 2009, Page(s):177 - 178
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  • An Evaluation of Graphical Context as a Means for Ameliorating the Effects of Registration Error

    Publication Year: 2009, Page(s):179 - 192
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2945 KB) | HTML iconHTML

    An ongoing research problem in Augmented Reality (AR) is to improve tracking and display technology in order to minimize registration errors. However, perfect registration is not always necessary for users to understand the intent of an augmentation. This paper describes the results of an experiment to evaluate the effects of registration error in a Lego block placement task and the effectiveness ... View full abstract»

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  • Comprehensible Visualization for Augmented Reality

    Publication Year: 2009, Page(s):193 - 204
    Cited by:  Papers (18)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3072 KB) | HTML iconHTML

    This article presents interactive visualizations to support the comprehension of spatial relationships between virtual and real world objects for augmented reality (AR) applications. To enhance the clarity of such relationships we discuss visualization techniques and their suitability for AR. We apply them on different AR applications with different goals, e.g. in X-Ray vision or in applications w... View full abstract»

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  • Survey of the Visual Exploration and Analysis of Perfusion Data

    Publication Year: 2009, Page(s):205 - 220
    Cited by:  Papers (11)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2664 KB) | HTML iconHTML

    Dynamic contrast-enhanced image data (perfusion data) are used to characterize regional tissue perfusion. Perfusion data consist of a sequence of images, acquired after a contrast agent bolus is applied. Perfusion data are used for diagnostic purposes in oncology, ischemic stroke assessment or myocardial ischemia. The diagnostic evaluation of perfusion data is challenging, since the data is comple... View full abstract»

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  • Visualization and Computer Graphics on Isotropically Emissive Volumetric Displays

    Publication Year: 2009, Page(s):221 - 234
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3592 KB) | HTML iconHTML Multimedia Media

    The availability of commodity volumetric displays provides ordinary users with a new means of visualizing 3D data. Many of these displays are in the class of isotropically emissive light devices, which are designed to directly illuminate voxels in a 3D frame buffer, producing x-ray-like visualizations. While this technology can offer intuitive insight into a 3D object, the visualizations are perce... View full abstract»

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  • GeoBuilder: A Geometric Algorithm Visualization and Debugging System for 2D and 3D Geometric Computing

    Publication Year: 2009, Page(s):234 - 248
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3306 KB) | HTML iconHTML

    Algorithm visualization is a unique research topic that integrates engineering skills such as computer graphics, system programming, database management, computer networks, etc., to facilitate algorithmic researchers in testing their ideas, demonstrating new findings, and teaching algorithm design in the classroom. Within the broad applications of algorithm visualization, there still remain perfor... View full abstract»

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  • Glimmer: Multilevel MDS on the GPU

    Publication Year: 2009, Page(s):249 - 261
    Cited by:  Papers (51)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1930 KB) | HTML iconHTML Multimedia Media

    We present Glimmer, a new multilevel algorithm for multidimensional scaling designed to exploit modern graphics processing unit (GPU) hardware. We also present GPU-SF, a parallel, force-based subsystem used by Glimmer. Glimmer organizes input into a hierarchy of levels and recursively applies GPU-SF to combine and refine the levels. The multilevel nature of the algorithm makes local minima less li... View full abstract»

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  • Compressed Facade Displacement Maps

    Publication Year: 2009, Page(s):262 - 273
    Cited by:  Papers (6)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3589 KB) | HTML iconHTML Multimedia Media

    We describe an approach to render massive urban models. To prevent a memory transfer bottleneck we propose to render the models from a compressed representation directly. Our solution is based on rendering crude building outlines as polygons and generating details by ray-tracing displacement maps in the fragment shader. We demonstrate how to compress a displacement map so that a decompression algo... View full abstract»

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  • A High Capacity 3D Steganography Algorithm

    Publication Year: 2009, Page(s):274 - 284
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2788 KB) | HTML iconHTML

    In this paper, we present a very high-capacity and low-distortion 3D steganography scheme. Our steganography approach is based on a novel multi-layered embedding scheme to hide secret messages in the vertices of 3D polygon models. Experimental results show that the cover model distortion is very small as the number of hiding layers ranges from 7 to 13 layers. To the best of our knowledge, this nov... View full abstract»

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  • A New Watermarking Method for 3D Models Based on Integral Invariants

    Publication Year: 2009, Page(s):285 - 294
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2905 KB) | HTML iconHTML

    In this paper, we propose a new semi-fragile watermarking algorithm for the authentication of 3D models based on integral invariants. A watermark image is embedded by modifying the integral invariants of some of the vertices. In order to modify the integral invariants, the positions of a vertex and its neighbors are shifted. To extract the watermark, all the vertices are tested for the embedded in... View full abstract»

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  • RGB Subdivision

    Publication Year: 2009, Page(s):295 - 310
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2700 KB) | HTML iconHTML

    We introduce the RGB subdivision: an adaptive subdivision scheme for triangle meshes, which is based on the iterative application of local refinement and coarsening operators, and generates the same limit surface of the Loop subdivision, independently on the order of application of local operators. Our scheme supports dynamic selective refinement, as in Continuous Level Of Detail models, and it ge... View full abstract»

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  • Continuous Collision Detection for Ellipsoids

    Publication Year: 2009, Page(s):311 - 325
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2207 KB) | HTML iconHTML Multimedia Media

    We present an accurate and efficient algorithm for continuous collision detection between two moving ellipsoids. We start with a highly optimized implementation of interference testing between two stationary ellipsoids based on an algebraic condition described in terms of the signs of roots of the characteristic equation of two ellipsoids. Then we derive a time-dependent characteristic equation fo... View full abstract»

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  • Cosserat Nets

    Publication Year: 2009, Page(s):325 - 338
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1323 KB) | HTML iconHTML Multimedia Media

    Cosserat nets are networks of elastic rods that are linked by elastic joints. They allow to represent a large variety of objects such as elastic rings, coarse nets, or truss structures. In this paper, we propose a novel approach to model and dynamically simulate such Cosserat nets. We first derive the static equilibrium of the elastic rod model that supports both bending and twisting deformation m... View full abstract»

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  • Robust High-Resolution Cloth Using Parallelism, History-Based Collisions, and Accurate Friction

    Publication Year: 2009, Page(s):339 - 350
    Cited by:  Papers (20)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3037 KB) | HTML iconHTML Multimedia Media

    In this paper we simulate high resolution cloth consisting of up to 2 million triangles which allows us to achieve highly detailed folds and wrinkles. Since the level of detail is also influenced by object collision and self collision, we propose a more accurate model for cloth-object friction. We also propose a robust history-based repulsion/collision framework where repulsions are treated accura... View full abstract»

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  • VisWeek 2009 Call for Participation

    Publication Year: 2009, Page(s): 351
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  • Join the IEEE Computer Society [advertisement]

    Publication Year: 2009, Page(s): 352
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  • [Inside back cover]

    Publication Year: 2009, Page(s): c3
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  • [Back cover]

    Publication Year: 2009, 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.

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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