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IEEE Transactions on Visualization and Computer Graphics

Issue 2 • Date March-April 2008

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Displaying Results 1 - 25 of 26
  • [Front cover]

    Publication Year: 2008, Page(s): c1
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  • [Inside front cover]

    Publication Year: 2008, Page(s): c2
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  • Editor's Note

    Publication Year: 2008, Page(s): 245
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  • 3D Modeling of Optically Challenging Objects

    Publication Year: 2008, Page(s):246 - 262
    Cited by:  Papers (17)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5225 KB) | HTML iconHTML

    We present a system for constructing 3D models of real-world objects with optically challenging surfaces. The system utilizes a new range imaging concept called multipeak range imaging, which stores multiple candidates of range measurements for each point on the object surface. The multiple measurements include the erroneous range data caused by various surface properties that are not ideal for st... View full abstract»

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  • Haptic Rendering of Dynamic Volumetric Data

    Publication Year: 2008, Page(s):263 - 276
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1210 KB) | HTML iconHTML

    With current methods for volume haptics in scientific visualization, features in time-varying data can freely move straight through the haptic probe without generating any haptic feedback-the algorithms are simply not designed to handle variation with time but consider only the instantaneous configuration when the haptic feedback is calculated. This article introduces haptic rendering of dynamic v... View full abstract»

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  • Geometric Texturing Using Level Sets

    Publication Year: 2008, Page(s):277 - 288
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2181 KB) | HTML iconHTML

    We present techniques for warping and blending (or subtracting) geometric textures onto surfaces represented by high-resolution level sets. The geometric texture itself can be represented either explicitly as a polygonal mesh or implicitly as a level set. Unlike previous approaches, we can produce topologically connected surfaces with smooth blending and low distortion. Specifically, we offer two ... View full abstract»

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  • An Evaluation of Prefiltered Reconstruction Schemes for Volume Rendering

    Publication Year: 2008, Page(s):289 - 301
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5594 KB) | HTML iconHTML

    In this paper, prefiltered reconstruction techniques are evaluated for volume-rendering applications. All the analyzed methods perform a discrete prefiltering as a preprocessing of the input samples in order to improve the quality of the continuous reconstruction afterward. Various prefiltering schemes have been proposed to fulfill either the spatial-domain or the frequency-domain criteria. Accord... View full abstract»

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  • Interactive, Internet Delivery of Visualization via Structured Prerendered Multiresolution Imagery

    Publication Year: 2008, Page(s):302 - 312
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1044 KB) | HTML iconHTML

    We present a novel approach for latency-tolerant delivery of visualization and rendering results, where client-side frame rate display performance is independent of source data set size, image size, visualization technique, or rendering complexity. Our approach delivers prerendered multiresolution images to a remote user as they navigate through different viewpoints, visualization parameters, or r... View full abstract»

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  • Practical Box Splines for Reconstruction on the Body Centered Cubic Lattice

    Publication Year: 2008, Page(s):313 - 328
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1972 KB) | HTML iconHTML

    We introduce a family of box splines for efficient, accurate, and smooth reconstruction of volumetric data sampled on the body-centered cubic (BCC) lattice, which is the favorable volumetric sampling pattern due to its optimal spectral sphere packing property. First, we construct a box spline based on the four principal directions of the BCC lattice that allows for a linear C0 reconstru... View full abstract»

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  • Triangular Springs for Modeling Nonlinear Membranes

    Publication Year: 2008, Page(s):329 - 341
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1334 KB) | HTML iconHTML

    This paper provides a formal connection between springs and continuum mechanics in the context of one-dimensional and two-dimensional elasticity. In the first stage, the equivalence between tensile springs and the finite element discretization of stretching energy of planar curves is established. Furthermore, when the strain is a quadratic function of stretch, this energy can be described with a n... View full abstract»

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  • Anisotropic Noise Samples

    Publication Year: 2008, Page(s):342 - 354
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6692 KB) | HTML iconHTML

    We present a practical approach to generate stochastic anisotropic samples with Poisson-disk characteristic over a two-dimensional domain. In contrast to isotropic samples, we understand anisotropic samples as nonoverlapping ellipses whose size and density match a given anisotropic metric. Anisotropic noise samples are useful for many visualization and graphics applications. The spot samples can b... View full abstract»

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  • Computing Multiscale Curve and Surface Skeletons of Genus 0 Shapes Using a Global Importance Measure

    Publication Year: 2008, Page(s):355 - 368
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1811 KB) | HTML iconHTML

    We present a practical algorithm for computing robust multiscale curve and surface skeletons of 3D objects of genus zero. Based on a model that follows an advection principle, we assign to each point on the skeleton a part of the object surface, called the collapse. The size of the collapse is used as a uniform importance measure for the curve and surface skeleton, so that both can be simplified b... View full abstract»

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  • Generic Remeshing of 3D Triangular Meshes with Metric-Dependent Discrete Voronoi Diagrams

    Publication Year: 2008, Page(s):369 - 381
    Cited by:  Papers (31)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2520 KB) | HTML iconHTML

    In this paper, we propose a generic framework for 3D surface remeshing. Based on a metric-driven Discrete Voronoi Diagram construction, our output is an optimized 3D triangular mesh with a user-defined vertex budget. Our approach can deal with a wide range of applications, from high-quality mesh generation to shape approximation. By using appropriate metric constraints, the method generates isotro... View full abstract»

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  • Texture Mapping with Hard Constraints Using Warping Scheme

    Publication Year: 2008, Page(s):382 - 395
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (9281 KB) | HTML iconHTML

    Texture mapping with positional constraints is an important and challenging problem in computer graphics. In this paper, we first present a theoretically robust, foldover-free 2D mesh warping algorithm. Then, we apply this warping algorithm to handle mapping texture onto 3D meshes with hard constraints. The proposed algorithm is experimentally evaluated and compared with the state-of-the-art metho... View full abstract»

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  • Visual Perception and Mixed-Initiative Interaction for Assisted Visualization Design

    Publication Year: 2008, Page(s):396 - 411
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2745 KB) | HTML iconHTML

    This paper describes the integration of perceptual guidelines from human vision with an Al-based mixed-initiative search strategy. The result is a visualization assistant called ViA, a system that collaborates with its users to identify perceptually salient visualizations for large multidimensional data sets. ViA applies the knowledge of low-level human vision to 1) evaluate the effectiveness of a... View full abstract»

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  • Filtering and Rendering of Resolution-Dependent Reflectance Models

    Publication Year: 2008, Page(s):412 - 425
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2875 KB) | HTML iconHTML

    The reflectance of a surface depends upon the resolution at which it is imaged. In this work, we propose to represent this resolution-dependent reflectance as a mixture of multiple conventional reflectance models and present a framework for efficiently rendering the reflectance effects of such mixture models over different resolutions. To rapidly determine reflectance at runtime with respect to re... View full abstract»

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  • Mesh-Guided Optimized Retexturing for Image and Video

    Publication Year: 2008, Page(s):426 - 439
    Cited by:  Papers (6)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4432 KB) | HTML iconHTML

    This paper presents a novel approach for replacing textures of specified regions in the input image and video using stretch-based mesh optimization. The retexturing results have the similar distortion and shading effect conforming to the unknown underlying geometry and lighting conditions. For replacing textures in a single image, two important steps are developed: The stretch-based mesh parameter... View full abstract»

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  • A Generic Scheme for Progressive Point Cloud Coding

    Publication Year: 2008, Page(s):440 - 453
    Cited by:  Papers (20)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2613 KB) | HTML iconHTML

    In this paper, we propose a generic point cloud encoder that provides a unified framework for compressing different attributes of point samples corresponding to 3D objects with an arbitrary topology. In the proposed scheme, the coding process is led by an iterative octree cell subdivision of the object space. At each level of subdivision, the positions of point samples are approximated by the geom... View full abstract»

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  • Spherical Piecewise Constant Basis Functions for All-Frequency Precomputed Radiance Transfer

    Publication Year: 2008, Page(s):454 - 467
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2827 KB) | HTML iconHTML

    This paper presents a novel basis function, called spherical piecewise constant basis function (SPCBF), for precomputed radiance transfer. SPCBFs have several desirable properties: rotatability, ability to represent all-frequency signals, and support for efficient multiple product. By smartly partitioning the illumination sphere into a set of subregions and associating each subregion with a... View full abstract»

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  • Stylized Rendering Using Samples of a Painted Image

    Publication Year: 2008, Page(s):468 - 480
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4638 KB) | HTML iconHTML

    We introduce a novel technique to generate painterly art maps (PAMs) for 3D nonphotorealistic rendering. Our technique can automatically transfer brushstroke textures and color changes to 3D models from samples of a painted image. Therefore, the generation of stylized images or animation in the style of a given artwork can be achieved. This new approach works particularly well for a rich variety o... View full abstract»

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  • Call for Participation

    Publication Year: 2008, Page(s): 481
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  • Join the IEEE Visualization Community [advertisement]

    Publication Year: 2008, Page(s): 482
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  • Join the IEEE Computer Society [advertisement]

    Publication Year: 2008, Page(s): 483
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  • IEEE Computer Society Digital Library [advertisement]

    Publication Year: 2008, Page(s): 484
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  • TVCG Information for authors

    Publication Year: 2008, Page(s): c3
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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