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Visualization and Computer Graphics, IEEE Transactions on

Issue 6 • Date June 2011

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Displaying Results 1 - 19 of 19
  • [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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  • Guest Editor's Introduction: Special Section on the Joint Conference on Geometric Design and Solid and Physical Modeling (GDSPM)

    Publication Year: 2011 , Page(s): 713 - 714
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  • Model Synthesis: A General Procedural Modeling Algorithm

    Publication Year: 2011 , Page(s): 715 - 728
    Cited by:  Papers (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1925 KB) |  | HTML iconHTML  

    We present a method for procedurally modeling general complex 3D shapes. Our approach can automatically generate complex models of buildings, man-made structures, or urban data sets in a few minutes based on user-defined inputs. The algorithm attempts to generate complex 3D models that resemble a user-defined input model and satisfy various dimensional, geometric, and algebraic constraints to cont... View full abstract»

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  • GPU-Accelerated Minimum Distance and Clearance Queries

    Publication Year: 2011 , Page(s): 729 - 742
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    Request Permissions | Click to expandAbstract | PDF file iconPDF (3061 KB) |  | HTML iconHTML  

    We present practical algorithms for accelerating distance queries on models made of trimmed NURBS surfaces using programmable Graphics Processing Units (GPUs). We provide a generalized framework for using GPUs as coprocessors in accelerating CAD operations. By supplementing surface data with a surface bounding-box hierarchy on the GPU, we answer distance queries such as finding the closest point o... View full abstract»

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  • Voronoi-Based Curvature and Feature Estimation from Point Clouds

    Publication Year: 2011 , Page(s): 743 - 756
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1710 KB) |  | HTML iconHTML  

    We present an efficient and robust method for extracting curvature information, sharp features, and normal directions of a piecewise smooth surface from its point cloud sampling in a unified framework. Our method is integral in nature and uses convolved covariance matrices of Voronoi cells of the point cloud which makes it provably robust in the presence of noise. We show that these matrices conta... View full abstract»

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  • Ball-Morph: Definition, Implementation, and Comparative Evaluation

    Publication Year: 2011 , Page(s): 757 - 769
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2888 KB) |  | HTML iconHTML  

    We define b-compatibility for planar curves and propose three ball morphing techniques between pairs of b-compatible curves. Ball-morphs use the automatic ball-map correspondence, proposed by Chazal et al. [1], from which we derive different vertex trajectories (linear, circular, and parabolic). All three morphs are symmetric, meeting both curves with the same angle, which is a right angle for the... View full abstract»

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  • Stable Feature Flow Fields

    Publication Year: 2011 , Page(s): 770 - 780
    Cited by:  Papers (11)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2178 KB) |  | HTML iconHTML  

    Feature Flow Fields are a well-accepted approach for extracting and tracking features. In particular, they are often used to track critical points in time-dependent vector fields and to extract and track vortex core lines. The general idea is to extract the feature or its temporal evolution using a stream line integration in a derived vector field-the so-called Feature Flow Field (FFF). Hence, the... View full abstract»

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  • Coherent Structures of Characteristic Curves in Symmetric Second Order Tensor Fields

    Publication Year: 2011 , Page(s): 781 - 794
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2229 KB) |  | HTML iconHTML  

    This paper generalizes the concept of Lagrangian coherent structures, which is known for its potential to visualize coherent regions in vector fields and to distinguish them from each other. In particular, we extend the concept of the flow map to generic mappings of coordinates. As the major application of this generalization, we present a semiglobal method for visualizing coherent structures in s... View full abstract»

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  • Color Lens: Adaptive Color Scale Optimization for Visual Exploration

    Publication Year: 2011 , Page(s): 795 - 807
    Cited by:  Papers (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1835 KB) |  | HTML iconHTML  

    Visualization applications routinely map quantitative attributes to color using color scales. Although color is an effective visualization channel, it is limited by both display hardware and the human visual system. We propose a new interaction technique that overcomes these limitations by dynamically optimizing color scales based on a set of sampling lenses. The technique inspects the lens conten... View full abstract»

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  • Automatic Generation of 3D Caricatures Based on Artistic Deformation Styles

    Publication Year: 2011 , Page(s): 808 - 821
    Cited by:  Papers (1)  |  Patents (1)
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    Request Permissions | Click to expandAbstract | PDF file iconPDF (2597 KB) |  | HTML iconHTML  

    Caricatures are a form of humorous visual art, usually created by skilled artists for the intention of amusement and entertainment. In this paper, we present a novel approach for automatic generation of digital caricatures from facial photographs, which capture artistic deformation styles from hand-drawn caricatures. We introduced a pseudo stress-strain model to encode the parameters of an artisti... View full abstract»

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  • Orientation-Preserving Rod Elements for Real-Time Thin-Shell Simulation

    Publication Year: 2011 , Page(s): 822 - 835
    Multimedia
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1712 KB) |  | HTML iconHTML  

    We propose a new computation model for simulating elastic thin shells at interactive rates. Existing graphical simulation methods are mostly based on dihedral angle energy functions, which need to compute the first order and second order partial derivatives with respect to current vertex positions as bending forces and stiffness matrices. The symbolic derivatives are complicated in nonisometric el... View full abstract»

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  • Approximate Boolean Operations on Large Polyhedral Solids with Partial Mesh Reconstruction

    Publication Year: 2011 , Page(s): 836 - 849
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (5517 KB) |  | HTML iconHTML  

    We present a new approach to compute the approximate Boolean operations of two freeform polygonal mesh solids efficiently with the help of Layered Depth Images (LDIs). After applying the LDI sampling-based membership classification, the most challenging part, a trimmed adaptive contouring algorithm, is developed to reconstruct the mesh surface from the LDI samples near the intersected regions and ... View full abstract»

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  • Motion-Sensitive Anchor Identification of Least-Squares Meshes from Examples

    Publication Year: 2011 , Page(s): 850 - 856
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1535 KB) |  | HTML iconHTML  

    A least-squares mesh is a surface representation consisting of a small set of anchor points and the differential and topological properties of the surface. In this paper, we present a novel method to identify motion-sensitive anchor points for least-squares meshes from a set of examples. We present a new method, called clustered teleconnection analysis, to identify the maximally excited points in ... View full abstract»

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  • Closed-Loop Feedback Illumination for Optical Inverse Tone-Mapping in Light Microscopy

    Publication Year: 2011 , Page(s): 857 - 870
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (5107 KB) |  | HTML iconHTML  

    In this paper, we show that optical inverse tone-mapping (OITM) in light microscopy can improve the visibility of specimens, both when observed directly through the oculars and when imaged with a camera. In contrast to previous microscopy techniques, we premodulate the illumination based on the local modulation properties of the specimen itself. We explain how the modulation of uniform white light... View full abstract»

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  • Stay Connected with the IEEE Computer Society [advertisement]

    Publication Year: 2011 , Page(s): 871
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  • Distinguish yourself with the CSDP [advertisement]

    Publication Year: 2011 , Page(s): 872
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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