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Visualization and Computer Graphics, IEEE Transactions on

Issue 12 • Date Dec. 2012

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Displaying Results 1 - 25 of 108
  • Table of Contents

    Publication Year: 2012 , Page(s): iiii - viii
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    Freely Available from IEEE
  • Message from the Editor-in-Chief

    Publication Year: 2012 , Page(s): ix
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  • Message from the Paper Chairs and Guest Editors

    Publication Year: 2012 , Page(s): x - xii
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  • IEEE Visualization and Graphics Technical Committee (VGTC)

    Publication Year: 2012 , Page(s): xiii
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  • VisWeek Conference Committee

    Publication Year: 2012 , Page(s): xiv
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  • International Program Committees

    Publication Year: 2012 , Page(s): xv - xvi
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  • Steering Committees

    Publication Year: 2012 , Page(s): xvii
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  • Reviewers

    Publication Year: 2012 , Page(s): xviii - xx
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  • VisWeek 2012 Keynote Speaker

    Publication Year: 2012 , Page(s): xxi
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (136 KB)  

    A professional biography of Mary Czerwinski of Microsoft Research is presented. Her speech, which is not included, was entitled: "Trends and Topics from the Last 17 Years at Microsoft Research." View full abstract»

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  • VisWeek 2012 Capstone Speaker

    Publication Year: 2012 , Page(s): xxii
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    What you are doing as visualization researchers and developers is critical and, in fact, your role is more important than ever in this age of massive data. I and many others desperately want to use your work, but sometimes I just cannot seem to wrap my head around what you are showing-even if it really looks cool. Cool doesn't cut it for me. This talk will give examples from my own successes and f... View full abstract»

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  • Supporters

    Publication Year: 2012 , Page(s): xxiii
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  • Generalized Topological Simplification of Scalar Fields on Surfaces

    Publication Year: 2012 , Page(s): 2005 - 2013
    Cited by:  Papers (3)
    Multimedia
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (8465 KB)  

    We present a combinatorial algorithm for the general topological simplification of scalar fields on surfaces. Given a scalar field f, our algorithm generates a simplified field g that provably admits only critical points from a constrained subset of the singularities of f, while guaranteeing a small distance ||f - g|| for data-fitting purpose. In contrast to previous algorithms,... View full abstract»

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  • Computing Morse-Smale Complexes with Accurate Geometry

    Publication Year: 2012 , Page(s): 2014 - 2022
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (16392 KB)  

    Topological techniques have proven highly successful in analyzing and visualizing scientific data. As a result, significant efforts have been made to compute structures like the Morse-Smale complex as robustly and efficiently as possible. However, the resulting algorithms, while topologically consistent, often produce incorrect connectivity as well as poor geometry. These problems may compromise o... View full abstract»

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  • Visualization of Temporal Similarity in Field Data

    Publication Year: 2012 , Page(s): 2023 - 2032
    Cited by:  Papers (1)
    Multimedia
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (9650 KB)  

    This paper presents a visualization approach for detecting and exploring similarity in the temporal variation of field data. We provide an interactive technique for extracting correlations from similarity matrices which capture temporal similarity of univariate functions. We make use of the concept to extract periodic and quasiperiodic behavior at single (spatial) points as well as similarity betw... View full abstract»

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  • Visualizing Nuclear Scission through a Multifield Extension of Topological Analysis

    Publication Year: 2012 , Page(s): 2033 - 2040
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (6097 KB) |  | HTML iconHTML  

    In nuclear science, density functional theory (DFT) is a powerful tool to model the complex interactions within the atomic nucleus, and is the primary theoretical approach used by physicists seeking a better understanding of fission. However DFT simulations result in complex multivariate datasets in which it is difficult to locate the crucial `scission' point at which one nucleus fragments into tw... View full abstract»

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  • Augmented Topological Descriptors of Pore Networks for Material Science

    Publication Year: 2012 , Page(s): 2041 - 2050
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (5689 KB)  

    One potential solution to reduce the concentration of carbon dioxide in the atmosphere is the geologic storage of captured CO2 in underground rock formations, also known as carbon sequestration. There is ongoing research to guarantee that this process is both efficient and safe. We describe tools that provide measurements of media porosity, and permeability estimates, including visualiz... View full abstract»

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  • KnotPad: Visualizing and Exploring Knot Theory with Fluid Reidemeister Moves

    Publication Year: 2012 , Page(s): 2051 - 2060
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4689 KB)  

    We present KnotPad, an interactive paper-like system for visualizing and exploring mathematical knots; we exploit topological drawing and math-aware deformation methods in particular to enable and enrich our interactions with knot diagrams. Whereas most previous efforts typically employ physically based modeling to simulate the 3D dynamics of knots and ropes, our tool offers a Reidemeister move ba... View full abstract»

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  • Visualization of Electrostatic Dipoles in Molecular Dynamics of Metal Oxides

    Publication Year: 2012 , Page(s): 2061 - 2068
    Cited by:  Papers (2)
    Multimedia
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (12359 KB)  

    Metal oxides are important for many technical applications. For example alumina (aluminum oxide) is the most commonly-used ceramic in microelectronic devices thanks to its excellent properties. Experimental studies of these materials are increasingly supplemented with computer simulations. Molecular dynamics (MD) simulations can reproduce the material behavior very well and are now reaching time s... View full abstract»

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  • Cumulative Heat Diffusion Using Volume Gradient Operator for Volume Analysis

    Publication Year: 2012 , Page(s): 2069 - 2077
    Cited by:  Papers (1)
    Multimedia
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (19217 KB)  

    We introduce a simple, yet powerful method called the Cumulative Heat Diffusion for shape-based volume analysis, while drastically reducing the computational cost compared to conventional heat diffusion. Unlike the conventional heat diffusion process, where the diffusion is carried out by considering each node separately as the source, we simultaneously consider all the voxels as sources and carry... View full abstract»

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  • A Novel Approach to Visualizing Dark Matter Simulations

    Publication Year: 2012 , Page(s): 2078 - 2087
    Multimedia
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (6048 KB)  

    In the last decades cosmological N-body dark matter simulations have enabled ab initio studies of the formation of structure in the Universe. Gravity amplified small density fluctuations generated shortly after the Big Bang, leading to the formation of galaxies in the cosmic web. These calculations have led to a growing demand for methods to analyze time-dependent particle based simulations. Rende... View full abstract»

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  • Visual Data Analysis as an Integral Part of Environmental Management

    Publication Year: 2012 , Page(s): 2088 - 2094
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1573 KB) |  | HTML iconHTML  

    The U.S. Department of Energy's (DOE) Office of Environmental Management (DOE/EM) currently supports an effort to understand and predict the fate of nuclear contaminants and their transport in natural and engineered systems. Geologists, hydrologists, physicists and computer scientists are working together to create models of existing nuclear waste sites, to simulate their behavior and to extrapola... View full abstract»

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  • Evaluation of Fast-Forward Video Visualization

    Publication Year: 2012 , Page(s): 2095 - 2103
    Cited by:  Papers (2)
    Multimedia
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3698 KB)  

    We evaluate and compare video visualization techniques based on fast-forward. A controlled laboratory user study (n = 24) was conducted to determine the trade-off between support of object identification and motion perception, two properties that have to be considered when choosing a particular fast-forward visualization. We compare four different visualizations: two representing the state-of-the-... View full abstract»

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  • Human Computation in Visualization: Using Purpose Driven Games for Robust Evaluation of Visualization Algorithms

    Publication Year: 2012 , Page(s): 2104 - 2113
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4001 KB)  

    Due to the inherent characteristics of the visualization process, most of the problems in this field have strong ties with human cognition and perception. This makes the human brain and sensory system the only truly appropriate evaluation platform for evaluating and fine-tuning a new visualization method or paradigm. However, getting humans to volunteer for these purposes has always been a signifi... View full abstract»

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  • Evaluation of Multivariate Visualization on a Multivariate Task

    Publication Year: 2012 , Page(s): 2114 - 2121
    Cited by:  Papers (2)
    Multimedia
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (16894 KB) |  | HTML iconHTML  

    Multivariate visualization techniques have attracted great interest as the dimensionality of data sets grows. One premise of such techniques is that simultaneous visual representation of multiple variables will enable the data analyst to detect patterns amongst multiple variables. Such insights could lead to development of new techniques for rigorous (numerical) analysis of complex relationships h... View full abstract»

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  • A Data-Driven Approach to Hue-Preserving Color-Blending

    Publication Year: 2012 , Page(s): 2122 - 2129
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2820 KB)  

    Color mapping and semitransparent layering play an important role in many visualization scenarios, such as information visualization and volume rendering. The combination of color and transparency is still dominated by standard alpha-compositing using the Porter-Duff over operator which can result in false colors with deceiving impact on the visualization. Other more advanced methods have also bee... View full abstract»

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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