Now showing items 1-20 of 43

    • Combining Extended Table Lens and Treemap Techniques for Visualizing Tabular Data 

      Telea, Alexandru (The Eurographics Association, 2006)
      We present a framework for visualizing large tabular data that combines two views: the table view and the treemap view. The table view extends the known table lens as follows: We cluster related elements to reduce subsampling ...
    • Robust Surface Detection for Variance Comparison and Dimensional Measurement 

      Heinzl, C.; Klingesberger, R.; Kastner, J.; Gröller, E. (The Eurographics Association, 2006)
      This paper describes a robust method for creating surface models from volume datasets with distorted density values due to artefacts and noise. Application scenario for the presented work is variance comparison and dimensional ...
    • PhylloTrees: Phyllotactic Patterns for Tree Layout 

      Neumann, Petra; Carpendale, Sheelagh; Agarawala, Anand (The Eurographics Association, 2006)
      Motivations for drawing hierarchical structures are probably as diverse as datasets to visualize. This ubiquity of tree structures has lead to a manifold of tree layout algorithms and tree visualization systems. While many ...
    • A Spectral Visualization System for Analyzing Financial Time Series Data 

      Keim, Daniel A.; Nietzschmann, Tilo; Schelwies, Norman; Schneidewind, Jörn; Schreck, Tobias; Ziegler, Hartmut (The Eurographics Association, 2006)
      Visual data analysis of time related data sets has attracted much research interest recently, and a number of sophisticated visualization methods have been proposed in the past. In financial analysis, however, the most ...
    • Volume Composition Using Eye Tracking Data 

      Lu, Aidong; Maciejewski, Ross; Ebert, David S. (The Eurographics Association, 2006)
      This paper presents a method to automate rendering parameter selection, simplifying tedious user interaction and improving the usability of visualization systems. Our approach acquires regions-of-interest for a dataset ...
    • Knowledge-Based Out-of-Core Algorithms for Data Management in Visualization 

      Chisnall, David; Chen, Min; Hansen, Charles (The Eurographics Association, 2006)
      Data management is the very first issue in handling very large datasets. Many existing out-of-core algorithms used in visualization are closely coupled with application-specific logic. This paper presents two knowledgebased ...
    • GPU-Based Hyperstreamlines for Diffusion Tensor Imaging 

      Reina, G.; Bidmon, K.; Enders, F.; Hastreiter, P.; Ertl, T. (The Eurographics Association, 2006)
      We propose a new approach for the visualization of hyperstreamlines, which offers potential for better scalability than the conventional polygon-based approach. Our method circumvents the bandwidth bottleneck between the ...
    • Hardware-accelerated Extraction and Rendering of Point Set Surfaces 

      Tejada, E.; Gois, J. P.; Nonato, L. G.; Castelo, A.; Ertl, T. (The Eurographics Association, 2006)
      Point-based models are gaining lately considerable attention as an alternative to traditional surface meshes. In this context, Point Set Surfaces (PSS) were proposed as a modeling and rendering method with important ...
    • Enhancing Slice-based Visualizations of Medical Volume Data 

      Tietjen, Christian; Meyer, Björn; Schlechtweg, Stefan; Preim, Bernhard; Hertel, Ilka; Strauß, Gero (The Eurographics Association, 2006)
      Slice-based visualizations of CT and MRI data are frequently used for diagnosis, intervention planning and intraoperative navigation since they allow a precise analysis and localization. We present new techniques to enhance ...
    • Evaluating the Effectiveness of Tree Visualization Systems for Knowledge Discovery 

      Wang, Yue; Teoh, Soon Tee; Ma, Kwan-Liu (The Eurographics Association, 2006)
      User studies, evaluations, and comparisons of tree visualization systems have so far focused on questions that can readily be answered by simple, automated queries without needing visualization. Studies are lacking on the ...
    • Terrain Rendering using Spherical Clipmaps 

      Clasen, Malte; Hege, Hans-Christian (The Eurographics Association, 2006)
      We describe a terrain rendering algorithm for spherical terrains based on clipmaps. It leverages the high geometry throughput of current GPU to render large static triangle sets. The vertices are displaced by a height map ...
    • Natural Visualizations 

      Haroz, Steve; Ma, Kwan-Liu (The Eurographics Association, 2006)
      This paper demonstrates the prevalence of a shared characteristic between visualizations and images of nature. We have analyzed visualization competitions and user studies of visualizations and found that the more preferred, ...
    • GPUFLIC: Interactive and Accurate Dense Visualization of Unsteady Flows 

      Li, Guo-Shi; Tricoche, Xavier; Hansen, Charles (The Eurographics Association, 2006)
      The paper presents an efficient and accurate implementation of Unsteady Flow LIC (UFLIC) on the Graphics Processing Unit (GPU). We obtain the same, high quality texture representation of unsteady two-dimensional flows as ...
    • Efficient Surface Reconstruction from Noisy Data using Regularized Membrane Potentials 

      Jalba, A. C.; Roerdink, J. B. T. M. (The Eurographics Association, 2006)
      We present a novel, physically-motivated method for surface reconstruction that can recover smooth surfaces from noisy and sparse data sets, without using orientation information. A new volumetric technique based on ...
    • GPU-Accelerated Volume Splatting With Elliptical RBFs 

      Neophytou, Neophytos; Mueller, Klaus; McDonnell, Kevin T.; Hong, Wei; Guan, Xin; Qin, Hong; Kaufman, Arie (The Eurographics Association, 2006)
      Radial Basis Functions (RBFs) have become a popular rendering primitive, both in surface and in volume rendering. This paper focuses on volume visualization, giving rise to 3D kernels. RBFs are especially convenient for ...
    • Direct Isosurface Extraction from Scattered Volume Data 

      Rosenthal, Paul; Linsen, Lars (The Eurographics Association, 2006)
      Isosurface extraction is a standard visualization method for scalar volume data and has been subject to research for decades. Nevertheless, to our knowledge, no isosurface extraction method exists that directly extracts ...
    • Texture Advection on Stream Surfaces: A Novel Hybrid Visualization Applied to CFD Simulation Results 

      Laramee, Robert S.; Garth, Christoph; Schneider, Jürgen; Hauser, Helwig (The Eurographics Association, 2006)
      Stream surfaces are a classic flow visualization technique used to portray the characteristics of vector fields, and texture advection research has made rapid advances in recent years. We present a novel hybrid visualization ...
    • An Interactive Visualization System for Quantifying Coral Structures 

      Kruszynski, K. J.; Liere, R. van; Kaandorp, J. A. (The Eurographics Association, 2006)
      Determining the shape of coral structures is an essential step for coral biologists to classify and compare corals. Currently, coral biologists analyze shape by performing manual measurements on photographs of coral colonies. ...
    • Path Line Oriented Topology for Periodic 2D Time-Dependent Vector Fields 

      Shi, K.; Theisel, H.; Weinkauf, T.; Hauser, H.; Hege, H.-C.; Seidel, H.-P. (The Eurographics Association, 2006)
      This paper presents an approach to extracting a path line oriented topological segmentation for periodic 2D timedependent vector fields. Topological methods aiming in capturing the asymptotic behavior of path lines rarely ...
    • Simultaneous Classification of Time-Varying Volume Data Based on the Time Histogram 

      Akiba, Hiroshi; Fout, Nathaniel; Ma, Kwan-Liu (The Eurographics Association, 2006)
      An important challenge in the application of direct volume rendering to time-varying data is the specification of transfer functions for all time steps. Very little research has been devoted to this problem, however. To ...