Now showing items 9-28 of 43

    • Extended Branch Decomposition Graphs: Structural Comparison of Scalar Data 

      Saikia, Himangshu; Seidel, Hans-Peter; Weinkauf, Tino (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We present a method to find repeating topological structures in scalar data sets. More precisely, we compare all subtrees of two merge trees against each other - in an efficient manner exploiting redundancy. This provides ...
    • Extracting Features from Time-Dependent Vector Fields Using Internal Reference Frames 

      Bhatia, Harsh; Pascucci, Valerio; Kirby, Robert M.; Bremer, Peer-Timo (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Extracting features from complex, time-dependent flow fields remains a significant challenge despite substantial research efforts, especially because most flow features of interest are defined with respect to a given ...
    • A Gaze-enabled Graph Visualization to Improve Graph Reading Tasks 

      Okoe, Mershack; Alam, Sayeed Safayet; Jianu, Radu (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Performing typical network tasks such as node scanning and path tracing can be difficult in large and dense graphs. To alleviate this problem we use eye-tracking as an interactive input to detect tasks that users intend ...
    • Glyphs for Exploring Crowd-sourced Subjective Survey Classification 

      Kachkaev, Alex; Wood, Jo; Dykes, Jason (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      The findings drawn from opinion survey responses are usually made by producing summary charts or conducting statistical analysis. Both involve data aggregation and filtering as exploring the unaggregated data has traditionally ...
    • GuideME: Slice-guided Semiautomatic Multivariate Exploration of Volumes 

      Zhou, Liang; Hansen, Charles (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Multivariate volume visualization is important for many applications including petroleum exploration and medicine. State-of-the-art tools allow users to interactively explore volumes with multiple linked parameter-space ...
    • Illustrative Visualization of Molecular Reactions using Omniscient Intelligence and Passive Agents 

      Muzic, Mathieu Le; Parulek, Julius; Stavrum, Anne Kristin; Viola, Ivan (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      In this paper we propose a new type of a particle systems, tailored for illustrative visualization purposes, in particular for visualizing molecular reactions in biological networks. Previous visualizations of biochemical ...
    • InSpectr: Multi-Modal Exploration, Visualization, and Analysis of Spectral Data 

      Amirkhanov, Artem; Fröhler, Bernhard; Kastner, Johann; Gröller, Eduard; Heinzl, Christoph (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      This paper addresses the increasing demand in industry for methods to analyze and visualize multimodal data involving a spectral modality. Two data modalities are used: high-resolution X-ray computed tomography (XCT) for ...
    • Line Integral Convolution for Real-Time Illustration of Molecular Surface Shape and Salient Regions 

      Lawonn, Kai; Krone, Michael; Ertl, Thomas; Preim, Bernhard (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We present a novel line drawing algorithm that illustrates surfaces in real-time to convey their shape. We use line integral convolution (LIC) and employ ambient occlusion for illustrative surface rendering. Furthermore, ...
    • LoVis: Local Pattern Visualization for Model Refinement 

      Zhao, Kaiyu; Ward, Matthew O.; Rundensteiner, Elke A.; Higgins, Huong N. (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Linear models are commonly used to identify trends in data. While it is an easy task to build linear models using pre-selected variables, it is challenging to select the best variables from a large number of alternatives. ...
    • Lyra: An Interactive Visualization Design Environment 

      Satyanarayan, Arvind; Heer, Jeffrey (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We present Lyra, an interactive environment for designing customized visualizations without writing code. Using drag-and-drop interactions, designers can bind data to the properties of graphical marks to author expressive ...
    • Mandatory Critical Points of 2D Uncertain Scalar Fields 

      Günther, David; Salmon, Joseph; Tierny, Julien (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      This paper introduces a novel, non-local characterization of critical points and their global relation in 2D uncertain scalar fields. The characterization is based on the analysis of the support of the probability density ...
    • Many Plans: Multidimensional Ensembles for Visual Decision Support in Flood Management 

      Waser, Jürgen; Konev, Artem; Sadransky, Bernhard; Horváth, Zsolt; Ribicic, Hrvoje; Carnecky, Robert; Kluding, Patrick; Schindler, Benjamin (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Uncertainties in flood predictions complicate the planning of mitigation measures. There is a consensus that many possible incident scenarios should be considered. For each scenario, a specific response plan should be ...
    • Methods for Compensating Contrast Effects in Information Visualization 

      Mittelstädt, Sebastian; Stoffel, Andreas; Keim, Daniel A. (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Color, as one of the most effective visual variables, is used in many techniques to encode and group data points according to different features. Relations between features and groups appear as visual patterns in the ...
    • Metro Transit-Centric Visualization for City Tour Planning 

      Claudio, Pio; Yoon, Sung-Eui (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      In general, city trip planning consists of two main steps: knowing Points-Of-Interest (POIs), and then planning a tour route from the current point to next preferred POIs. We mainly consider the metro for traveling around ...
    • Networks of Names: Visual Exploration and Semi-Automatic Tagging of Social Networks from Newspaper Articles 

      Kochtchi, Artjom; Landesberger, Tatiana von; Biemann, Chris (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Understanding relationships between people and organizations by reading newspaper articles is difficult to manage for humans due to the large amount of data. To address this problem, we present and evaluate a new visual ...
    • Opacity Optimization for Surfaces 

      Günther, Tobias; Schulze, Maik; Esturo, Janick Martinez; Rössl, Christian; Theisel, Holger (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      In flow visualization, integral surfaces rapidly tend to expand, fold and produce vast amounts of occlusion. While silhouette enhancements and local transparency mappings proved useful for semi-transparent depictions, they ...
    • Papilio: Visualizing Android Application Permissions 

      Loorak, Mona Hosseinkhani; Fong, Philip W. L.; Carpendale, Sheelagh (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We introduce Papilio, a new visualization technique for visualizing permissions of real-world Android applications. We explore the development of layouts that exploit the directed acyclic nature of Android application ...
    • Parallel Irradiance Caching for Interactive Monte-Carlo Direct Volume Rendering 

      Khlebnikov, Rostislav; Voglreiter, Philip; Steinberger, Markus; Kainz, Bernhard; Schmalstieg, Dieter (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We propose a technique to build the irradiance cache for isotropic scattering simultaneously with Monte Carlo progressive direct volume rendering on a single GPU, which allows us to achieve up to four times increased ...
    • Preface and Table of Contents 

      H. Carr, P. Rheingans, and H. Schumann (The Eurographics Association and Blackwell Publishing Ltd., 2014)
    • RBF Volume Ray Casting on Multicore and Manycore CPUs 

      Knoll, Aaron; Wald, Ingo; Navratil, Paul; Bowen, Anne; Reda, Khairi; Papka, Mike E.; Gaither, Kelly (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Modern supercomputers enable increasingly large N-body simulations using unstructured point data. The structures implied by these points can be reconstructed implicitly. Direct volume rendering of radial basis function ...