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Title IEEE Transactions on Visualization and Computer Graphics table of contents archive
PublisherIEEE Educational Activities Department Piscataway, NJ, USA
ISSN: 1077-2626

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IEEE Transactions on Visualization and Computer Graphics

Volume 16 Issue 6, November 2010

Table of Contents
Message from the Editor-in-Chief
Thomas Ertl
Pages: x-x
doi>10.1109/TVCG.2010.178
Full text available: Publisher SitePublisher Site
Preface
Jean-Daniel Fekete, Frank van Ham, Raghu Machiraju, Torsten Moller, Hanspeter Pfister
Pages: xi-xx
doi>10.1109/TVCG.2010.188
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In Memoriam: Illuminating Our Paths - James (Jim) Joseph Thomas
David S Ebert, John Dill, David J. Kasik
Page: xxi
doi>10.1109/TVCG.2010.167
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The 2010 Visualization Career Award
Page: xxii
doi>10.1109/TVCG.2010.203
Full text available: Publisher SitePublisher Site
The 2010 Visualization Techinal Achievement Award
Page: xxiii
doi>10.1109/TVCG.2010.204
Full text available: Publisher SitePublisher Site
VisWeek Keynote Address
Mary Hegarty
Page: xxiv
doi>10.1109/TVCG.2010.220
Full text available: Publisher SitePublisher Site
Necklace Maps
authro Speckmann, Kevin Verbeek
Pages: 881-889
doi>10.1109/TVCG.2010.180
Full text available: Publisher SitePublisher Site

Statistical data associated with geographic regions is nowadays globally available in large amounts and hence automated methods to visually display these data are in high demand. There are several well-established thematic map types for quantitative ...
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Rethinking Map Legends with Visualization
Jason Dykes, Jo Wood, Aidan Slingsby
Pages: 890-899
doi>10.1109/TVCG.2010.191
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This design paper presents new guidance for creating map legends in a dynamic environment. Our contribution is a set ofguidelines for legend design in a visualization context and a series of illustrative themes through which they may be expressed. Theseare ...
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SignalLens: Focus+Context Applied to Electronic Time Series
Robert Kincaid
Pages: 900-907
doi>10.1109/TVCG.2010.193
Full text available: Publisher SitePublisher Site

Electronic test and measurement systems are becoming increasingly sophisticated in order to match the increased complexity and ultra-high speed of the devices under test. A key feature in many such instruments is a vastly increased capacity for storage ...
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Comparative Analysis of Multidimensional, Quantitative Data
Miriah Meyer, Tamara Munzner, Angela DePace, Hanspeter Pfister
Pages: 908-917
doi>10.1109/TVCG.2010.137
Full text available: Publisher SitePublisher Site

Cells in an organism share the same genetic information in their DNA, but have very different forms and behavior becauseof the selective expression of subsets of their genes. The widely used approach of measuring gene expression over time froma tissue ...
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Gremlin: An Interactive Visualization Model for Analyzing Genomic Rearrangements
Trevor O'Brien, Anna Ritz, Benjamin Raphael, David Laidlaw
Pages: 918-926
doi>10.1109/TVCG.2010.163
Full text available: Publisher SitePublisher Site

In this work we present, apply, and evaluate a novel, interactive visualization model for comparative analysis of structural variants and rearrangements in human and cancer genomes, with emphasis on data integration and uncertainty visualization. To ...
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Graphical Perception of Multiple Time Series
Waqas Javed, Bryan McDonnel, Niklas Elmqvist
Pages: 927-934
doi>10.1109/TVCG.2010.162
Full text available: Publisher SitePublisher Site

Line graphs have been the visualization of choice for temporal data ever since the days of William Playfair (1759-1823), but realistic temporal analysis tasks often include multiple simultaneous time series.In this work, we explore user performance for ...
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Uncovering Strengths and Weaknesses of Radial Visualizations---an Empirical Approach
Stephan Diehl, Fabian Beck, Michael Burch
Pages: 935-942
doi>10.1109/TVCG.2010.209
Full text available: Publisher SitePublisher Site

Radial visualizations play an important role in the information visualization community. But the decision to choose a radial coordinate system is rather based on intuition than on scientific foundations. The empirical approach presented in this paper ...
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How Information Visualization Novices Construct Visualizations
Lars Grammel, Melanie Tory, Margaret-Anne Storey
Pages: 943-952
doi>10.1109/TVCG.2010.164
Full text available: Publisher SitePublisher Site

It remains challenging for information visualization novices to rapidly construct visualizations during exploratory data analysis. We conducted an exploratory laboratory study in which information visualization novices explored fictitious sales data ...
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eSeeTrack—Visualizing Sequential Fixation Patterns
Hoi Ying Tsang, Melanie Tory, Colin Swindells
Pages: 953-962
doi>10.1109/TVCG.2010.149
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We introduce eSeeTrack, an eye-tracking visualization prototype that facilitates exploration and comparison of sequential gaze orderings in a static or a dynamic scene. It extends current eye-tracking data visualizations by extracting patterns of sequential ...
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Evaluating the impact of task demands and block resolution on the effectiveness of pixel-based visualization
Rita Borgo, Karl Proctor, Min Chen, Heike Janicke, Tavi Murray, Ian Thornton
Pages: 963-972
doi>10.1109/TVCG.2010.150
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Pixel-based visualization is a popular method of conveying large amounts of numerical data graphically. Application scenarios include business and finance, bioinformatics and remote sensing. In this work, we examined how the usability of such visual ...
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Graphical inference for infovis
Hadley Wickham, Dianne Cook, Heike Hofmann, Andreas Buja
Pages: 973-979
doi>10.1109/TVCG.2010.161
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How do we know if what we see is really there? When visualizing data, how do we avoid falling into the trap of apophenia where we see patterns in random noise? Traditionally, infovis has been concerned with discovering new relationships, and statistics ...
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Matching Visual Saliency to Confidence in Plots of Uncertain Data
David Feng, Lester Kwock, Yueh Lee, Russell Taylor
Pages: 980-989
doi>10.1109/TVCG.2010.176
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Conveying data uncertainty in visualizations is crucial for preventing viewers from drawing conclusions based on untrustworthy data points. This paper proposes a methodology for efficiently generating density plots of uncertain multivariate data sets ...
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Perceptual Guidelines for Creating Rectangular Treemaps
Nicholas Kong, Jeffrey Heer, Maneesh Agrawala
Pages: 990-998
doi>10.1109/TVCG.2010.186
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Treemaps are space-filling visualizations that make efficient use of limited display space to depict large amounts of hierarchical data. Creating perceptually effective treemaps requires carefully managing a number of design parameters including the ...
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Mental Models, Visual Reasoning and Interaction in Information Visualization: A Top-down Perspective
Zhicheng Liu, John Stasko
Pages: 999-1008
doi>10.1109/TVCG.2010.177
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Although previous research has suggested that examining the interplay between internal and external representations can benefit our understanding of the role of information visualization (InfoVis) in human cognitive activities, there has been little ...
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Laws of Attraction: From Perceptual Forces to Conceptual Similarity
Caroline Ziemkiewicz, Robert Kosara
Pages: 1009-1016
doi>10.1109/TVCG.2010.174
Full text available: Publisher SitePublisher Site

Many of the pressing questions in information visualization deal with how exactly a user reads a collection of visual marks as information about relationships between entities. Previous research has suggested that people see parts of a visualization ...
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Pargnostics: Screen-Space Metrics for Parallel Coordinates
Aritra Dasgupta, Robert Kosara
Pages: 1017-1026
doi>10.1109/TVCG.2010.184
Full text available: Publisher SitePublisher Site

Interactive visualization requires the translation of data into a screen space of limited resolution. While currently ignored by most visualization models, this translation entails a loss of information and the introduction of a number of artifacts that ...
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Comparative Analysis of Multidimensional, Quantitative Data
Alexander Lex, Marc Streit, Christian Partl, Dieter Schmalstieg
Pages: 1027-1035
doi>10.1109/TVCG.2010.138
Full text available: Publisher SitePublisher Site

When analyzing multidimensional, quantitative data, the comparison of two or more groups of dimensions is a commontask. Typical sources of such data are experiments in biology, physics or engineering, which are conducted in different configurationsand ...
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An Extension of Wilkinson’s Algorithm for Positioning Tick Labels on Axes
Justin Talbot, Sharon Lin, Pat Hanrahan
Pages: 1036-1043
doi>10.1109/TVCG.2010.130
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The non-data components of a visualization, such as axes and legends, can often be just as important as the data itself. They provide contextual information essential to interpreting the data. In this paper, we describe an automated system for choosing ...
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Stacking Graphic Elements to Avoid Over-Plotting
Tuan Nhon Dang, Leland Wilkinson, Anushka Anand
Pages: 1044-1052
doi>10.1109/TVCG.2010.197
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An ongoing challenge for information visualization is how to deal with over-plotting forced by ties or the relatively limitedvisual field of display devices. A popular solution is to represent local data density with area (bubble plots, treemaps), color(heatmaps), ...
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Visualization of Diversity in Large Multivariate Data Sets
Tuan Pham, Rob Hess, Crystal Ju, Eugene Zhang, Ronald Metoyer
Pages: 1053-1062
doi>10.1109/TVCG.2010.216
Full text available: Publisher SitePublisher Site

Understanding the diversity of a set of multivariate objects is an important problem in many domains, including ecology, college admissions, investing, machine learning, and others. However, to date, very little work has been done to help users achieve ...
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PedVis: A Structured, Space-Efficient Technique for Pedigree Visualization
Claurissa Tuttle, Luis Gustavo Nonato, Claudio Silva
Pages: 1063-1072
doi>10.1109/TVCG.2010.185
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Public genealogical databases are becoming increasingly populated with historical data and records of the current population's ancestors.As this increasing amount of available information is used to link individuals to their ancestors, the resulting ...
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GeneaQuilts: A System for Exploring Large Genealogies
Anastasia Bezerianos, Pierre Dragicevic, Jean-Daniel Fekete, Juhee Bae, Ben Watson
Pages: 1073-1081
doi>10.1109/TVCG.2010.159
Full text available: Publisher SitePublisher Site

GeneaQuilts is a new visualization technique for representing large genealogies of up to several thousand individuals. Thevisualization takes the form of a diagonally-filled matrix, where rows are individuals and columns are nuclear families. After identifyingthe ...
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Visualization of Graph Products
Stefan Janicke, Christian Heine, Marc Hellmuth, Peter F. Stadler, Gerik Scheuermann
Pages: 1082-1089
doi>10.1109/TVCG.2010.217
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Graphs are a versatile structure and abstraction for binary relationships between objects. To gain insight into such relationships, their corresponding graph can be visualized. In the past, many classes of graphs have been defined, e.g. trees, planar ...
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Untangling Euler Diagrams
Nathalie Henry Riche, Tim Dwyer
Pages: 1090-1099
doi>10.1109/TVCG.2010.210
Full text available: Publisher SitePublisher Site

In many common data analysis scenarios the data elements are logically grouped into sets. Venn and Euler style diagrams are a common visual representation of such set membership where the data elements are represented by labels or glyphs and sets are ...
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The FlowVizMenu and Parallel Scatterplot Matrix: Hybrid Multidimensional Visualizations for Network Exploration
Christophe Viau, Michael J. McGuffin, Yves Chiricota, Igor Jurisica
Pages: 1100-1108
doi>10.1109/TVCG.2010.205
Full text available: Publisher SitePublisher Site

A standard approach for visualizing multivariate networks is to use one or more multidimensional views (for example, scatterplots) for selecting nodes by various metrics, possibly coordinated with a node-link view of the network. In this paper, we present ...
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OpinionSeer: Interactive Visualization of Hotel Customer Feedback
Yingcai Wu, Furu Wei, Shixia Liu, Norman Au, Weiwei Cui, Hong Zhou, Huamin Qu
Pages: 1109-1118
doi>10.1109/TVCG.2010.183
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The rapid development of Web technology has resulted in an increasing number of hotel customers sharing their opinionson the hotel services. Effective visual analysis of online customer opinions is needed, as it has a significant impact on buildinga ...
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The Streams of Our Lives: Visualizing Listening Histories in Context
Dominikus Baur, Frederik Seiffert, Michael Sedlmair, Sebastian Boring
Pages: 1119-1128
doi>10.1109/TVCG.2010.206
Full text available: Publisher SitePublisher Site

The choices we take when listening to music are expressions of our personal taste and character. Storing and accessing our listening histories is trivial due to services like Last.fm, but learning from them and understanding them is not. Existing solutions ...
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A Visual Backchannel for Large-Scale Events
Marian Dork, Daniel Gruen, Carey Williamson, Sheelagh Carpendale
Pages: 1129-1138
doi>10.1109/TVCG.2010.129
Full text available: Publisher SitePublisher Site

We introduce the concept of a Visual Backchannel as a novel way of following and exploring online conversations aboutlarge-scale events. Microblogging communities, such as Twitter, are increasingly used as digital backchannels for timely exchange ofbrief ...
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Narrative Visualization: Telling Stories with Data
Edward Segel, Jeffrey Heer
Pages: 1139-1148
doi>10.1109/TVCG.2010.179
Full text available: Publisher SitePublisher Site

Data visualization is regularly promoted for its ability to reveal stories within data, yet these “data stories” differ in important ways from traditional forms of storytelling. Storytellers, especially online journalists, have increasingly ...
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Declarative Language Design for Interactive Visualization
Jeffrey Heer, Michael Bostock
Pages: 1149-1156
doi>10.1109/TVCG.2010.144
Full text available: Publisher SitePublisher Site

We investigate the design of declarative, domain-specific languages for constructing interactive visualizations. By separatingspecification from execution, declarative languages can simplify development, enable unobtrusive optimization, and supportretargeting ...
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WebCharts: Extending Applications with Web-Authored, Embeddable Visualizations
Danyel Fisher, Steven Drucker, Roland Fernandez, Scott Ruble
Pages: 1157-1163
doi>10.1109/TVCG.2010.222
Full text available: Publisher SitePublisher Site

In order to use new visualizations, most toolkits require application developers to rebuild their applications and distribute new versions to users. The WebCharts Framework take a different approach by hosting JavaScript from within an application and ...
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“behaviorism”: a framework for dynamic data visualization
Angus Forbes, Tobias Hollerer, George Legrady
Pages: 1164-1171
doi>10.1109/TVCG.2010.126
Full text available: Publisher SitePublisher Site

While a number of information visualization software frameworks exist, creating new visualizations, especially those that involve novel visualization metaphors, interaction techniques, data analysis strategies, and specialized rendering algorithms, is ...
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FacetAtlas: Multifaceted Visualization for Rich Text Corpora
Nan Cao, Jimeng Sun, Yu-Ru Lin, David Gotz, Shixia Liu, Huamin Qu
Pages: 1172-1181
doi>10.1109/TVCG.2010.154
Full text available: Publisher SitePublisher Site

Documents in rich text corpora usually contain multiple facets of information. For example, an article about a specific disease often consists of different facets such as symptom, treatment, cause, diagnosis, prognosis, and prevention. Thus, documents ...
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SparkClouds: Visualizing Trends in Tag Clouds
Bongshin Lee, Nathalie Henry Riche, Amy K. Karlson, Sheelash Carpendale
Pages: 1182-1189
doi>10.1109/TVCG.2010.194
Full text available: Publisher SitePublisher Site

Tag clouds have proliferated over the web over the last decade. They provide a visual summary of a collection of texts by visually depicting the tag frequency by font size. In use, tag clouds can evolve as the associated data source changes over time. ...
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ManiWordle: Providing Flexible Control over Wordle
Kyle Koh, Bongshin Lee, Bohyoung Kim, Jinwook Seo
Pages: 1190-1197
doi>10.1109/TVCG.2010.175
Full text available: Publisher SitePublisher Site

Among the multifarious tag-clouding techniques, Wordle stands out to the community by providing an aesthetic layout, eliciting the emergence of the participatory culture and usage of tag-clouding in the artistic creations. In this paper, we introduce ...
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On the Fractal Dimension of Isosurfaces
Marc Khoury, Rephael Wenger
Pages: 1198-1205
doi>10.1109/TVCG.2010.182
Full text available: Publisher SitePublisher Site

A (3D) scalar grid is a regular $n_1 x n_2 x n_3$ grid of vertices where each vertex v is associated with some scalar value $s_v$. ;Applying trilinear interpolation, the scalar grid determines a scalar function g where $g(v) = s_v$ for each grid vertex ...
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An Information-theoretic Framework for Visualization
Min Chen, Heike Jaenicke
Pages: 1206-1215
doi>10.1109/TVCG.2010.132
Full text available: Publisher SitePublisher Site

In this paper, we examine whether or not information theory can be one of the theoretic frameworks for visualization. We formulate concepts and measurements for qualifying visual information. We illustrate these concepts with examples that manifest the ...
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An Information-Theoretic Framework for Flow Visualization
Lijie Xu, Teng-Yok Lee, Han-Wei Shen
Pages: 1216-1224
doi>10.1109/TVCG.2010.131
Full text available: Publisher SitePublisher Site

The process of visualization can be seen as a visual communication channel where the input to the channel is the raw data, and the output is the result of a visualization algorithm. From this point of view, we can evaluate the effectiveness of visualization ...
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Streak Lines as Tangent Curves of a Derived Vector Field
Tino Weinkauf, Holger Theisel
Pages: 1225-1234
doi>10.1109/TVCG.2010.198
Full text available: Publisher SitePublisher Site

Characteristic curves of vector fields include stream, path, and streak lines. Stream and path lines can be obtained by a simple vector field integration of an autonomous ODE system, i.e., they can be described as tangent curves of a vector field. This ...
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A Curved Ray Camera for Handling Occlusions through Continuous Multiperspective Visualization
Jian Cui, Paul Rosen, Voicu Popescu, Christoph Hoffmann
Pages: 1235-1242
doi>10.1109/TVCG.2010.127
Full text available: Publisher SitePublisher Site

Most images used in visualization are computed with the planar pinhole camera. This classic camera model has important advantages such as simplicity, which enables efficient software and hardware implementations, and similarity to the human eye, which ...
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Special Relativistic Visualization by Local Ray Tracing
Thomas Muller, Sebastian Grottel, Daniel Weiskopf
Pages: 1243-1250
doi>10.1109/TVCG.2010.196
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Special relativistic visualization offers the possibility of experiencing the optical effects of traveling near the speed of light, including apparent geometric distortions as well as Doppler and searchlight effects. Early high-quality computer graphics ...
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Computing Robustness and Persistence for Images
Paul Bendich, Herbert Edelsbrunner, Michael Kerber
Pages: 1251-1260
doi>10.1109/TVCG.2010.139
Full text available: Publisher SitePublisher Site

We are interested in 3-dimensional images given as arrays of voxels with intensity values. Extending these values to acontinuous function, we study the robustness of homology classes in its level and interlevel sets, that is, the amount of perturbationneeded ...
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Browsing Large Image Datasets through Voronoi Diagrams
Paolo Brivio, Marco Tarini, Paolo Cignoni
Pages: 1261-1270
doi>10.1109/TVCG.2010.136
Full text available: Publisher SitePublisher Site

Conventional browsing of image collections use mechanisms such as thumbnails arranged on a regular grid or on a line,often mounted over a scrollable panel. However, this approach does not scale well with the size of the datasets (number of images).In ...
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Visual Exploration of High Dimensional Scalar Functions
Samuel Gerber, Peer-Timo Bremer, Valerio Pascucci, Ross Whitaker
Pages: 1271-1280
doi>10.1109/TVCG.2010.213
Full text available: Publisher SitePublisher Site

An important goal of scientific data analysis is to understand thebehavior of a system or process based on a sample of the system.In manyinstances it is possible to observe both input parameters and system outputs, and characterize the system as a high-dimensional ...
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Two-Phase Mapping for Projecting Massive Data Sets
Fernando V. Paulovich, Claudio T. Silva, Luis G. Nonato
Pages: 1281-1290
doi>10.1109/TVCG.2010.207
Full text available: Publisher SitePublisher Site

Most multidimensional projection techniques rely on distance (dissimilarity) information between data instances to embed high-dimensional data into a visual space. When data are endowed with Cartesian coordinates, an extra computational effort is necessary ...
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Discontinuities in Continuous Scatter Plots
Dirk J. Lehmann, Holger Theisel
Pages: 1291-1300
doi>10.1109/TVCG.2010.146
Full text available: Publisher SitePublisher Site

The concept of continuous scatterplot (CSP) is a modern visualization technique.The idea is to define a scalar density value based on the map between an n-dimensional spatial domain and an m-dimensional data domain, which describe the CSP space. Usually ...
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Spatial Conditioning of Transfer Functions Using Local Material Distributions
Stefan Lindholm, Patric Ljung, Claes Lundstrom, Anders Persson, Anders Ynnerman
Pages: 1301-1310
doi>10.1109/TVCG.2010.195
Full text available: Publisher SitePublisher Site

In many applications of Direct Volume Rendering (DVR) the importance of a certain material or feature is highly dependent on its relative spatial location. For instance, in the medical diagnostic procedure, the patient's symptoms often lead to specification ...
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Exploded View Diagrams of Mathematical Surfaces
Olga Karpenko, Wilmot Li, Niloy Mitra, Maneesh Agrawala
Pages: 1311-1318
doi>10.1109/TVCG.2010.151
Full text available: Publisher SitePublisher Site

We present a technique for visualizing complicated mathematical surfaces that is inspired by hand-designed topologicalillustrations.Our approach generates exploded views that exposethe internal structure of such a surface by partitioning it intoparallel ...
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IRIS: Illustrative Rendering for Integral Surfaces
Mathias Hummel, Christoph Garth, Bernd Hamann, Hans Hagen, Kenneth I. Joy
Pages: 1319-1328
doi>10.1109/TVCG.2010.173
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Integral surfaces are ideal tools to illustrate vector fields and fluid flow structures. However, these surfaces can be visually complex and exhibit difficult geometric properties, owing to strong stretching, shearing and folding of the flow from which ...
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Illustrative Stream Surfaces
Silvia Born, Alexander Wiebel, Jan Friedrich, Gerik Scheuermann, Dirk Bartz
Pages: 1329-1338
doi>10.1109/TVCG.2010.166
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Stream surfaces are an intuitive approach to represent 3D vector fields. In many cases, however, they are challenging objects to visualize and to understand, due to a high degree of self-occlusion. Despite the need for adequate rendering methods, little ...
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Exploration of 4D MRI Blood Flow using Stylistic Visualization
Roy van Pelt, Javier Olivan Bescos, Marcel Breeuwer, Rachel E. Clough, M. Eduard Groller, Bart ter Haar Romenij, Anna Vilanova
Pages: 1339-1347
doi>10.1109/TVCG.2010.153
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Insight into the dynamics of blood-flow considerably improves the understanding of the complex cardiovascular system and its pathologies. Advances in MRI technology enable acquisition of 4D blood-flow data, providing quantitative blood-flow velocities ...
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Supine and Prone Colon Registration Using Quasi-Conformal Mapping
Wei Zeng, Joseph Marino, Krishna Chaitanya Gurijala, Xianfeng Gu, Arie Kaufman
Pages: 1348-1357
doi>10.1109/TVCG.2010.200
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In virtual colonoscopy, CT scans are typically acquired with the patient in both supine (facing up) and prone (facing down) positions. The registration of these two scans is desirable so that the user can clarify situations or confirm polyp findings ...
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Uncertainty-Aware Guided Volume Segmentation
Jorg-Stefan Prassni, Timo Ropinski, Klaus Hinrichs
Pages: 1358-1365
doi>10.1109/TVCG.2010.208
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Although direct volume rendering is established as a powerful tool for the visualization of volumetric data, efficient and reliable feature detection is still an open topic. Usually, a tradeoff between fast but imprecise classification schemes and accurate ...
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Exploration and Visualization of Segmentation Uncertainty using Shape and Appearance Prior Information
Ahmed Saad, Ghassan Hamarneh, Torsten Moller
Pages: 1366-1375
doi>10.1109/TVCG.2010.152
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We develop an interactive analysis and visualization tool for probabilistic segmentation in medical imaging. The originality of our approach is that the data exploration is guided by shape and appearance knowledge learned from expert-segmented images ...
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Edge Aware Anisotropic Diffusion for 3D Scalar Data
Zahid Hosssain, Torsten Moller
Pages: 1376-1385
doi>10.1109/TVCG.2010.147
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In this paper we present a novel anisotropic diffusion model targeted for 3D scalar field data. Our model preserves material boundaries as well as fine tubular structures while noise is smoothed out. One of the major novelties is the use of the directional ...
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Interactive Histology of Large-Scale Biomedical Image Stacks
Won-Ki Jeong, Jens Schneider, Stephen Turney, Beverly E Faulkner-Jones, Dominik Meyer, Rudiger Westermann, R. Clay Reid, Jeff Lichtman, Hanspeter Pfister
Pages: 1386-1395
doi>10.1109/TVCG.2010.168
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Histology is the study of the structure of biological tissue using microscopy techniques. As digital imaging technology advances, high resolution microscopy of large tissue volumes is becoming feasible; however, new interactive tools are needed to explore ...
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Articulated Planar Reformation for Change Visualization in Small Animal Imaging
Peter Kok, Martin Baiker, Emile A. Hendriks, Frits H. Post, Jouke Dijkstra, Clemens W. G. M. Lowik, Boudewijn P. F. Lelieveldt, Charl P. Botha
Pages: 1396-1404
doi>10.1109/TVCG.2010.134
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The analysis of multi-timepoint whole-body small animal CT data is greatly complicated by the varying posture of the subjectat different timepoints. Due to these variations, correctly relating and comparing corresponding regions of interest is challenging.In ...
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Volumetric Modeling in Laser BPH Therapy Simulation
Nan Zhang, Xiangmin Zhou, Yunhe Shen, Robert Sweet
Pages: 1405-1412
doi>10.1109/TVCG.2010.221
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In this paper, we introduce a novel application of volume modeling techniques onlaser Benign Prostatic Hyperplasia (BPH) therapy simulation.The core technique in our system is an algorithm for simulating the tissue vaporization process by laser heating. ...
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Scalable Multi-variate Analytics of Seismic and Satellite-based Observational Data
Xiaoru Yuan, He Xiao, Hanqi Guo, Peihong Guo, Wesley Kendall, Jian Huang, Yongxian Zhang
Pages: 1413-1420
doi>10.1109/TVCG.2010.192
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Over the past few years, large human populations around the world have been affected by an increase in significant seismic activities. For both conducting basic scientific research and for setting critical government policies, it is crucial to be able ...
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Noodles: A Tool for Visualization of Numerical Weather Model Ensemble Uncertainty
Jibonananda Sanyal, Song Zhang, Jamie Dyer, Andrew Mercer, Philip Amburn, Robert Moorhead
Pages: 1421-1430
doi>10.1109/TVCG.2010.181
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Numerical weather prediction ensembles are routinely used for operational weather forecasting. The members of these ensembles are individual simulations with either slightly perturbed initial conditions or different model parameterizations, or occasionally ...
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Analysis of Recurrent Patterns in Toroidal Magnetic Fields
Allen Sanderson, Guoning Chen, Xavier Tricoche, David Pugmire, Scott Kruger, Joshua Breslau
Pages: 1431-1440
doi>10.1109/TVCG.2010.133
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In the development of magnetic confinement fusion which will potentially be a future source for low cost power, physicists must be able to analyze the magnetic field that confines the burning plasma. While the magnetic field can be described as a vector ...
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Interactive Visualization of Hyperspectral Images of Historical Documents
Seon Joo Kim, Shaojie Zhuo, Fanbo Deng, Chi-Wing Fu, Michael Brown
Pages: 1441-1448
doi>10.1109/TVCG.2010.172
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This paper presents an interactive visualization tool tostudy and analyze hyperspectral images (HSI) of historicaldocuments. This work is part of a collaborative effort with theNationaal Archief of the Netherlands (NAN) and Art Innovation, amanufacturer ...
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Interactive Visual Analysis of Multiple Simulation Runs Using the Simulation Model View: Understanding and Tuning of an Electronic Unit Injector
Kresimir Matkovic, Denis Gracanin, Mario Jelovic, Andreas Ammer, Alan Lez, Helwig Hauser
Pages: 1449-1457
doi>10.1109/TVCG.2010.171
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Multiple simulation runs using the same simulation model with different values of control parameters generate a large data set that captures the behavior of the modeled phenomenon. However, there is a conceptual and visual gap between the simulation ...
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World Lines
Jurgen Waser, Raphael Fuchs, Hrvoje Ribicic, Benjamin Schindler, Gunther Bloschl, Eduard Groller
Pages: 1458-1467
doi>10.1109/TVCG.2010.223
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In this paper we present World Lines as a novel interactive visualization that provides complete control over multiple heterogeneous simulation runs. In many application areas, decisions can only be made by exploring alternative scenarios. The goal of ...
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Result-Driven Exploration of Simulation Parameter Spaces for Visual Effects Design
Stefan Bruckner, Torsten Moller
Pages: 1468-1476
doi>10.1109/TVCG.2010.190
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Graphics artists commonly employ physically-based simulation for the generation of effects such as smoke, explosions, and similar phenomena. The task of finding the correct parameters for a desired result, however, is difficult and time-consuming as ...
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Visual Optimality and Stability Analysis of 3DCT Scan Positions
Artem Amirkhanov, Christoph Heinzl, Michael Reiter, Eduard Groller
Pages: 1477-1486
doi>10.1109/TVCG.2010.214
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Industrial cone-beam X-Ray computed tomography (CT) systems often face problems due to artifacts caused by a bad placement of the specimen on the rotary plate. This paper presents a visual-analysis tool for CT systems, which provides a simulation-based ...
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Pre-Integrated Volume Rendering with Non-Linear Gradient Interpolation
Amel Guetat, Alexandre Ancel, Stephane Marchesin, Jean-Michel Dischler
Pages: 1487-1494
doi>10.1109/TVCG.2010.187
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Shading is an important feature for the comprehension of volume datasets, but is difficult to implement accurately. Current techniques based on pre-integrated direct volume rendering approximate the volume rendering integral by ignoring non-linear gradient ...
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Gradient Estimation Revitalized
Usman Alim, Torsten Moller, Laurent Condat
Pages: 1495-1504
doi>10.1109/TVCG.2010.160
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We investigate the use of a Fourier-domain derivative error kernel to quantify the error incurred while estimating the gradient of a function from scalar point samples on a regular lattice. We use the error kernel to show that gradient reconstruction ...
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Direct Interval Volume Visualization
Marco Ament, Daniel Weiskopf, Hamish Carr
Pages: 1505-1514
doi>10.1109/TVCG.2010.145
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We extend direct volume rendering with a unified model for generalized isosurfaces, also called interval volumes, allowing a wider spectrum of visual classification. We generalize the concept of scale-invariant opacity—typical for isosurface rendering—to ...
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VDVR: Verifiable Volume Visualization of Projection-Based Data
Ziyi Zheng, Wei Xu, Klaus Mueller
Pages: 1515-1524
doi>10.1109/TVCG.2010.211
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Practical volume visualization pipelines are never without compromises and errors. A delicate and often-studied component is the interpolation of off-grid samples, where aliasing can lead to misleading artifacts and blurring, potentially hiding fine ...
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Fast High-Quality Volume Ray Casting with Virtual Samplings
Byeonghun Lee, Jihye Yun, Jinwook Seo, Byonghyo Shim, Yeong-Gil Shin, Bohyoung Kim
Pages: 1525-1532
doi>10.1109/TVCG.2010.155
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Volume ray-casting with a higher order reconstruction filter and/or a higher sampling rate has been adopted in direct volume rendering frameworks to provide a smooth reconstruction of the volume scalar and/or to reduce artifacts when the combined frequency ...
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Efficient High-Quality Volume Rendering of SPH Data
Roland Fraedrich, Stefan Auer, Rudiger Westermann
Pages: 1533-1540
doi>10.1109/TVCG.2010.148
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High quality volume rendering of SPH data requires a complex order-dependent resampling of particle quantities along the view rays. In this paper we present an efficient approach to perform this task using a novel view-space discretization of the simulation ...
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Fast, Memory-Efficient Cell Location in Unstructured Grids for Visualization
Christoph Garth, Kenneth I. Joy
Pages: 1541-1550
doi>10.1109/TVCG.2010.156
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Applying certain visualization techniques to datasets described on unstructured grids requires the interpolation of variables of interest at arbitrary locations within the dataset's domain of definition. Typical solutions to the problem of finding the ...
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Visualization by Proxy: A Novel Framework for Deferred Interaction with Volume Data
Anna Tikhonova, Carlos D. Correa, Kwan-Liu Ma
Pages: 1551-1559
doi>10.1109/TVCG.2010.215
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Interactivity is key to exploration of volume data. Interactivity may be hindered due to many factors, e.g. large data size,high resolution or complexity of a data set, or an expensive rendering algorithm. We present a novel framework for visualizing ...
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Interactive Vector Field Feature Identification
Joel Daniels II, Erik W. Anderson, Luis Gustavo Nonato, Claudio T. Silva
Pages: 1560-1568
doi>10.1109/TVCG.2010.170
Full text available: Publisher SitePublisher Site

We introduce a flexible technique for interactive exploration of vector field data through classification derived from userspecified feature templates. Our method is founded on the observation that, while similar features within the vector field may ...
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Interactive Separating Streak Surfaces
Florian Ferstl, Kai Burger, Holger Theisel, Rudiger Westermann
Pages: 1569-1577
doi>10.1109/TVCG.2010.169
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Streak surfaces are among the most important features to support 3D unsteady flow exploration, but they are also among the computationally most demanding. Furthermore, to enable a feature driven analysis of the flow, one is mainly interested in streak ...
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View-Dependent Streamlines for 3D Vector Fields
Stephane Marchesin, Cheng-Kai Chen, Chris Ho, Kwan-Liu Ma
Pages: 1578-1586
doi>10.1109/TVCG.2010.212
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This paper introduces a new streamline placement and selection algorithm for 3D vector fields. Instead of considering the problem as a simpl feature search in data space, we base our work on the observation that most streamline fields generate a lot ...
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Visualizing Flow Trajectories Using Locality-based Rendering and Warped Curve Plots
Chad Jones, Kwan-Liu Ma
Pages: 1587-1594
doi>10.1109/TVCG.2010.218
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In flow simulations the behavior and properties of particle trajectories often depend on the physical geometry containedin the simulated environment. Understanding the flow in and around the geometry itself is an important part of analyzing the data.Previous ...
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Superquadric Glyphs for Symmetric Second-Order Tensors
Thomas Schultz, Gordon L. Kindlmann
Pages: 1595-1604
doi>10.1109/TVCG.2010.199
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Symmetric second-order tensor fields play a central role in scientific and biomedical studies as well as in image analysis and feature-extraction methods. The utility of displaying tensor field samples has driven the development of visualization techniques ...
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TanGeoMS: Tangible Geospatial Modeling System
Laura Tateosian, Helena Mitasova, Brendan Harmon, Brent Fogleman, Katherine Weaver, Russel Harmon
Pages: 1605-1612
doi>10.1109/TVCG.2010.202
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We present TanGeoMS, a tangible geospatial modeling visualization system that couples a laser scanner, projector, and a flexible physical three-dimensional model with a standard geospatial information system (GIS) to create a tangible user interface ...
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FI3D: Direct-Touch Interaction for the Exploration of 3D Scientific Visualization Spaces
Lingyun Yu, Pjotr Svetachov, Petra Isenberg, Maarten H. Everts, Tobias Isenberg
Pages: 1613-1622
doi>10.1109/TVCG.2010.157
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We present the design and evaluation of FI3D, a direct-touch data exploration technique for 3D visualization spaces. The exploration of three-dimensional data is core to many tasks and domains involving scientific visualizations. Thus, effective data ...
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A Scalable Distributed Paradigm for Multi-User Interaction with Tiled Rear Projection Display Walls
Pablo Roman, Maxim Lazarov, Aditi Majumder
Pages: 1623-1632
doi>10.1109/TVCG.2010.128
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We present the first distributed paradigm for multiple users to interact simultaneously with large tiled rear projection display walls. Unlike earlier works, our paradigm allows easy scalability across different applications, interaction modalities, ...
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Projector Placement Planning for High Quality Visualizations on Real-World Colored Objects
Alvin J. Law, Daniel G. Aliaga, Aditi Majumder
Pages: 1633-1641
doi>10.1109/TVCG.2010.189
Full text available: Publisher SitePublisher Site

Many visualization applications benefit from displaying content on real-world objects rather than on a traditional display(e.g., a monitor). This type of visualization display is achieved by projecting precisely controlled illumination from multiple ...
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VisWeek Capstone Address
Alexander S. Szalay
Pages: xxv-xxvi
doi>10.1109/TVCG.2010.219
Full text available: Publisher SitePublisher Site
Author Index and Cover Image Credits
Pages: xxvii-xxviii
doi>10.1109/TVCG.2010.135
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