Now showing items 1-20 of 54

    • Illustrative Molecular Visualization with Continuous Abstraction 

      Zwan, Matthew van der; Lueks, Wouter; Bekker, Henk; Isenberg, Tobias (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Molecular systems may be visualized with various degrees of structural abstraction, support of spatial perception, and 'illustrativeness.' In this work we propose and realize methods to create seamless transformations that ...
    • Assisted Descriptor Selection Based on Visual Comparative Data Analysis 

      Bremm, Sebastian; Landesberger, Tatiana von; Bernard, Jürgen; Schreck, Tobias (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Exploration and selection of data descriptors representing objects using a set of features are important components in many data analysis tasks. Usually, for a given dataset, an optimal data description does not exist, as ...
    • Visual Exploration of Time-Series Data with Shape Space Projections 

      Ward, Matthew O.; Guo, Zhenyu (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Time-series data is a common target for visual analytics, as they appear in a wide range of application domains. Typical tasks in analyzing time-series data include identifying cyclic behavior, outliers, trends, and periods ...
    • Visual Coherence for Large-Scale Line-Plot Visualizations 

      Muigg, Philipp; Hadwiger, Markus; Doleisch, Helmut; Gröller, Eduard (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Displaying a large number of lines within a limited amount of screen space is a task that is common to many different classes of visualization techniques such as time-series visualizations, parallel coordinates, link-node ...
    • A Visual Analytics Approach for Peak-Preserving Prediction of Large Seasonal Time Series 

      Hao, M. C.; Janetzko, H.; Mittelstädt, S.; Hill, W.; Dayal, U.; Keim, D. A.; Marwah, M.; Sharma, R. K. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Time series prediction methods are used on a daily basis by analysts for making important decisions. Most of these methods use some variant of moving averages to reduce the number of data points before prediction. However, ...
    • Probabilistic Marching Cubes 

      Pöthkow, Kai; Weber, Britta; Hege, Hans-Christian (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      In this paper we revisit the computation and visualization of equivalents to isocontours in uncertain scalar fields. We model uncertainty by discrete random fields and, in contrast to previous methods, also take arbitrary ...
    • Evaluation of the Visibility of Vessel Movement Features in Trajectory Visualizations 

      Willems, Niels; Wetering, Huub van de; Wijk, Jarke J. van (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      There are many visualizations that show the trajectory of a moving object to obtain insights in its behavior. In this user study, we test the performance of three of these visualizations with respect to three movement ...
    • Semantic-Preserving Word Clouds by Seam Carving 

      Wu, Yingcai; Provan, Thomas; Wei, Furu; Liu, Shixia; Ma, Kwan-Liu (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Word clouds are proliferating on the Internet and have received much attention in visual analytics. Although word clouds can help users understand the major content of a document collection quickly, their ability to visually ...
    • A User Study of Visualization Effectiveness Using EEG and Cognitive Load 

      Anderson, Erik W.; Potter, K. C.; Matzen, L. E.; Shepherd, J. F.; Preston, G. A.; Silva, C. T. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Effectively evaluating visualization techniques is a difficult task often assessed through feedback from user studies and expert evaluations. This work presents an alternative approach to visualization evaluation in which ...
    • A Shader Framework for Rapid Prototyping of GPU-Based Volume Rendering 

      Rieder, Christian; Palmer, Stephan; Link, Florian; Hahn, Horst K. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      In this paper, we present a rapid prototyping framework for GPU-based volume rendering. Therefore, we propose a dynamic shader pipeline based on the SuperShader concept and illustrate the design decisions. Also, important ...
    • WaveMap: Interactively Discovering Features From Protein Flexibility Matrices Using Wavelet-based Visual Analytics 

      Barlowe, Scott; Liu, Yujie; Yang, Jing; Livesay, Dennis R.; Jacobs, Donald J.; Mottonen, James; Verma, Deeptak (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      The knowledge gained from biology datasets can streamline and speed-up pharmaceutical development. However, computational models generate so much information regarding protein behavior that large-scale analysis by traditional ...
    • Topological Features in 2D Symmetric Higher-Order Tensor Fields 

      Schultz, Thomas (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      The topological structure of scalar, vector, and second-order tensor fields provides an important mathematical basis for data analysis and visualization. In this paper, we extend this framework towards higher-order tensors. ...
    • Curve Density Estimates 

      Lampe, Ove Daae; Hauser, Helwig (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      In this work, we present a technique based on kernel density estimation for rendering smooth curves. With this approach, we produce uncluttered and expressive pictures, revealing frequency information about one, or, multiple ...
    • Uncertainty-Aware Exploration of Continuous Parameter Spaces Using Multivariate Prediction 

      Berger, Wolfgang; Piringer, H.; Filzmoser, P.; Gröller, Eduard (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Systems projecting a continuous n-dimensional parameter space to a continuous m-dimensional target space play an important role in science and engineering. If evaluating the system is expensive, however, an analysis is ...
    • Visualization of Time-Series Data in Parameter Space for Understanding Facial Dynamics 

      Tam, Gary K. L.; Fang, H.; Aubrey, A. J.; Grant, P. W.; Rosin, P. L.; Marshall, D.; Chen, M. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Over the past decade, computer scientists and psychologists have made great efforts to collect and analyze facial dynamics data that exhibit different expressions and emotions. Such data is commonly captured as videos and ...
    • Prostate Cancer Visualization from MR Imagery and MR Spectroscopy 

      Marino, Joseph; Kaufman, Arie (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Prostate cancer is one of the most prevalent cancers among males, and the use of magnetic resonance imaging (MRI) has been suggested for its detection. A framework is presented for scoring and visualizing various MR data ...
    • The Undistort Lens 

      Brosz, John; Carpendale, Sheelagh; Nacenta, Miguel A. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Detail-in-context lens techniques can be useful for exploring visualizations of data spaces that are too large or have too much detail to fit in regular displays. For example, by bending the space in the right way we can ...
    • Stable Morse Decompositions for Piecewise Constant Vector Fields on Surfaces 

      Szymczak, Andrzej (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Numerical simulations and experimental observations are inherently imprecise. Therefore, most vector fields of interest in scientific visualization are known only up to an error. In such cases, some topological features, ...
    • Temporal Visualization of Boundary-based Geo-information Using Radial Projection 

      Drocourt, Y.; Borgo, Rita; Scharrer, K.; Murray, T.; Bevan, S. I.; Chen, M. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      This work is concerned with a design study by an interdisciplinary team on visualizing a 10-year record of seasonal and inter-annual changes in frontal position (advance/retreat) of nearly 200 marine terminating glaciers ...
    • Visual Boosting in Pixel-based Visualizations 

      Oelke, Daniela; Janetzko, Halldor; Simon, Svenja; Neuhaus, Klaus; Keim, Daniel A. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Pixel-based visualizations have become popular, because they are capable of displaying large amounts of data and at the same time provide many details. However, pixel-based visualizations are only effective if the data set ...