Now showing items 1-20 of 52

    • Learning Probabilistic Transfer Functions: A Comparative Study of Classifiers 

      Soundararajan, Krishna Prasad; Schultz, Thomas (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Complex volume rendering tasks require high-dimensional transfer functions, which are notoriously difficult to design. One solution to this is to learn transfer functions from scribbles that the user places in the volumetric ...
    • Quantitative Measures for Cartogram Generation Techniques 

      Alam, Md. Jawaherul; Kobourov, Stephen G.; Veeramoni, Sankar (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Cartograms are used to visualize geographically distributed data by scaling the regions of a map (e.g., US states) such that their areas are proportional to some data associated with them (e.g., population). Thus the ...
    • Visual Analysis of Spatio-Temporal Data: Applications in Weather Forecasting 

      Diehl, Alexandra; Pelorosso, Leandro; Delrieux, Claudio; Saulo, Celeste; Ruiz, Juan; Gröller, M. Eduard; Bruckner, Stefan (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Weather conditions affect multiple aspects of human life such as economy, safety, security, and social activities. For this reason, weather forecast plays a major role in society. Currently weather forecasts are based on ...
    • Guided Volume Editing based on Histogram Dissimilarity 

      Karimov, Alexey; Mistelbauer, Gabriel; Auzinger, Thomas; Bruckner, Stefan (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Segmentation of volumetric data is an important part of many analysis pipelines, but frequently requires manual inspection and correction. While plenty of volume editing techniques exist, it remains cumbersome and errorprone ...
    • Edge-Aware Volume Smoothing Using L0 Gradient Minimization 

      Wang, Qichao; Tao, Yubo; Lin, Hai (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      In volume visualization, noise in regions of homogeneous material and at boundaries between different materials poses a great challenge in extracting, analyzing and rendering features of interest. In this paper, we present ...
    • Interactive Visual Analysis for Vehicle Detector Data 

      Chen, Yi-Cheng; Wang, Yu-Shuen; Lin, Wen-Chieh; Huang, Wei-Xiang; Lin, I-Chen (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Visualization of vehicle detection (VD) data is essential because the data play an important role in traffic control and policy development. Most previous works focus on visualizing trajectories obtained from global ...
    • Towards a Smooth Design Process for Static Communicative Node-link Diagrams 

      Suslik Spritzer, Andre; Boy, Jeremy; Dragicevic, Pierre; Fekete, Jean-Daniel; Dal Sasso Freitas, Carla Maria (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Node-link infographics are visually very rich and can communicate messages effectively, but can be very difficult to create, often involving a painstaking and artisanal process. In this paper we present an investigation ...
    • Evaluating 2D Flow Visualization Using Eye Tracking 

      Ho, Hsin-Yang; Yeh, I-Cheng; Lai, Yu-Chi; Lin, Wen-Chieh; Cherng, Fu-Yin (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Flow visualization is recognized as an essential tool for many scientific research fields and different visualization approaches are proposed. Several studies are also conducted to evaluate their effectiveness but these ...
    • Fiber Surfaces: Generalizing Isosurfaces to Bivariate Data 

      Carr, Hamish; Geng, Zhao; Tierny, Julien; Chattopadhyay, Amit; Knoll, Aaron (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Scientific visualization has many effective methods for examining and exploring scalar and vector fields, but rather fewer for bivariate fields. We report the first general purpose approach for the interactive extraction ...
    • Refinery: Visual Exploration of Large, Heterogeneous Networks through Associative Browsing 

      Kairam, Sanjay; Henry-Riche, Nathalie; Drucker, Steven; Fernandez, Roland; Heer, Jeffrey (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Browsing is a fundamental aspect of exploratory information-seeking. Associative browsing represents a common and intuitive set of exploratory strategies in which users step iteratively from familiar to novel bits of ...
    • Map-based Visualizations Increase Recall Accuracy of Data 

      Saket, Bahador; Scheidegger, Carlos; Kobourov, Stephen G.; Börner, Katy (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We investigate the memorability of data represented in two different visualization designs. In contrast to recent studies that examine which types of visual information make visualizations memorable, we examine the effect ...
    • Efficient Contrast Effect Compensation with Personalized Perception Models 

      Mittelstädt, Sebastian; Keim, Daniel A. (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Color is one of the most effective visual variables and is frequently used to encode metric quantities. Contrast effects are considered harmful in data visualizations since they significantly bias our perception of colors. ...
    • GraphUnit: Evaluating Interactive Graph Visualizations Using Crowdsourcing 

      Okoe, Mershack; Jianu, Radu (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We present GraphUnit, a framework and online service that automates the process of designing, running and analyzing results of controlled user studies of graph visualizations by leveraging crowdsourcing and a set of ...
    • Dual Adjacency Matrix: Exploring Link Groups in Dense Networks 

      Dinkla, Kasper; Henry-Riche, Nathalie; Westenberg, Michel A. (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Node grouping is a common way of adding structure and information to networks that aids their interpretation. However, certain networks benefit from the grouping of links instead of nodes. Link communities, for example, ...
    • Perfopticon: Visual Query Analysis for Distributed Databases 

      Moritz, Dominik; Halperin, Daniel; Howe, Bill; Heer, Jeffrey (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Distributed database performance is often unpredictable due to issues such as system complexity, network congestion, or imbalanced data distribution. These issues are difficult for users to assess in part due to the opaque ...
    • Adaptive Recommendations for Enhanced Non-linear Exploration of Annotated 3D Objects 

      Rodriguez, Marcos Balsa; Agus, Marco; Marton, Fabio; Gobbetti, Enrico (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We introduce a novel approach for letting casual viewers explore detailed 3D models integrated with structured spatially associated descriptive information organized in a graph. Each node associates a subset of the 3D ...
    • Photoelasticity Raycasting 

      Bußler, Michael; Ertl, Thomas; Sadlo, Filip (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We present a novel physically-based method to visualize stress tensor fields. By incorporating photoelasticity into traditional raycasting and extending it with reflection and refraction, taking into account polarization, ...
    • Vector Field Visualization of Advective-Diffusive Flows 

      Hochstetter, Hendrik; Wurm, Maximilian; Kolb, Andreas (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We propose a framework for unified visualization of advective and diffusive concentration fluxes, which play a key role in many phenomena like, e.g. Marangoni convection and microscopic mixing. The main idea is the ...
    • Visual Analytics for Exploring Local Impact of Air Traffic 

      Buchmüller, Juri; Janetzko, Halldor; Andrienko, Gennady; Andrienko, Natalia; Fuchs, Georg; Keim, Daniel A. (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      The environmental and noise impact of airports often causes extensive political discussion which in some cases even lead to transnational tensions. Analyzing local approach and departure patterns around an airport is ...
    • A Novel Framework for Visual Detection and Exploration of Performance Bottlenecks in Organic Photovoltaic Solar Cell Materials 

      Aboulhassan, Amal; Baum, Daniel; Wodo, Olga; Ganapathysubramanian, Baskar; Amassian, Aram; Hadwiger, Markus (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Current characterization methods of the so-called Bulk Heterojunction (BHJ), which is the main material of Organic Photovoltaic (OPV) solar cells, are limited to the analysis of global fabrication parameters. This reduces ...