Now showing items 1-20 of 43

    • Stability of Dissipation Elements: A Case Study in Combustion 

      Gyulassy, Attila; Bremer, Peer-Timo; Grout, Ray; Kolla, Hemanth; Chen, Jacqueline; Pascucci, Valerio (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Recently, dissipation elements have been gaining popularity as a mechanism for measurement of fundamental properties of turbulent flow, such as turbulence length scales and zonal partitioning. Dissipation elements segment ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Evaluating the Impact of User Characteristics and Different Layouts on an Interactive Visualization for Decision Making 

      Conati, Cristina; Carenini, Giuseppe; Hoque, Enamul; Steichen, Ben; Toker, Dereck (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      There is increasing evidence that user characteristics can have a significant impact on visualization effectiveness, suggesting that visualizations could be designed to better fit each user's specific needs. Most studies ...
    • Semi-Automatic Editing of Graphs with Customized Layouts 

      Gladisch, Stefan; Schumann, Heidrun; Ernst, Mathias; Füllen, Georg; Tominski, Christian (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Usually visualization is applied to gain insight into data. Yet consuming the data in form of visual representation is not always enough. Instead, users need to edit the data, preferably through the same means used to ...
    • 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 ...
    • Towards an Unbiased Comparison of CC, BCC, and FCC Lattices in Terms of Prealiasing 

      Vad, Viktor; Csébfalvi, Balázs; Rautek, Peter; Gröller, Eduard (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      In the literature on optimal regular volume sampling, the Body-Centered Cubic (BCC) lattice has been proven to be optimal for sampling spherically band-limited signals above the Nyquist limit. On the other hand, if the ...
    • Authoring Narrative Visualizations with Ellipsis 

      Satyanarayan, Arvind; Heer, Jeffrey (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Data visualization is now a popular medium for journalistic storytelling. However, current visualization tools either lack support for storytelling or require significant technical expertise. Informed by interviews with ...
    • Comparative Blood Flow Visualization for Cerebral Aneurysm Treatment Assessment 

      Pelt, Roy van; Gasteiger, Rocco; Lawonn, Kai; Meuschke, Monique; Preim, Bernhard (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      A pathological vessel dilation in the brain, termed cerebral aneurysm, bears a high risk of rupture, and is associated with a high mortality. In recent years, incidental findings of unruptured aneurysms have become more ...
    • 4D MRI Flow Coupled to Physics-Based Fluid Simulation for Blood-Flow Visualization 

      Hoon, Niels de; Pelt, Roy van; Jalba, Andrei; Vilanova, Anna (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Modern MRI measurements deliver volumetric and time-varying blood-flow data of unprecedented quality. Visual analysis of these data potentially leads to a better diagnosis and risk assessment of various cardiovascular ...
    • Visualization of Medicine Prescription Behavior 

      Corput, Paul van der; Arends, Johan; Wijk, Jarke J. van (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Medicine prescriptions play an important role in medical treatments. More insight in medicine prescription behavior can lead to more efficient and effective treatments, as well as reflection on prescription behavior for ...
    • Visualizing Validation of Protein Surface Classifiers 

      Sarikaya, Alper; Albers, Danielle; Mitchell, Julie; Gleicher, Michael (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Many bioinformatics applications construct classifiers that are validated in experiments that compare their results to known ground truth over a corpus. In this paper, we introduce an approach for exploring the results of ...
    • 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 ...
    • Volumetric Data Reduction in a Compressed Sensing Framework 

      Xu, Xie; Sakhaee, Elham; Entezari, Alireza (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      In this paper, we investigate compressed sensing principles to devise an in-situ data reduction framework for visualization of volumetric datasets. We exploit the universality of the compressed sensing framework and show ...
    • Visual Analysis of Sets of Heterogeneous Matrices Using Projection-Based Distance Functions and Semantic Zoom 

      Behrisch, Michael; Davey, James; Fischer, Fabian; Thonnard, Olivier; Schreck, Tobias; Keim, Daniel; Kohlhammer, Jörn (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Matrix visualization is an established technique in the analysis of relational data. It is applicable to large, dense networks, where node-link representations may not be effective. Recently, domains have emerged in which ...
    • Visual Analysis of Time-Series Similarities for Anomaly Detection in Sensor Networks 

      Steiger, Martin; Bernard, Jürgen; Mittelstädt, Sebastian; Lücke-Tieke, Hendrik; Keim, Daniel; May, Thorsten; Kohlhammer, Jörn (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We present a system to analyze time-series data in sensor networks. Our approach supports exploratory tasks for the comparison of univariate, geo-referenced sensor data, in particular for anomaly detection. We split the ...