Now showing items 1-20 of 35

    • Manual Clustering Refinement using Interaction with Blobs 

      Heine, Christian; Scheuermann, Gerik (The Eurographics Association, 2007)
      The huge amount of different automatic clustering methods emphasizes one thing: there is no optimal clustering method for all possible cases. In certain application domains, like genomics and natural language processing, ...
    • Dimensional Congruence for Interactive Visual Data Mining and Knowledge Discovery 

      Baumgaertner, Sebastian; Ebert, Achim; Deller, Matthias (The Eurographics Association, 2007)
      Many authors in the field of 3D human computer interaction have described the advantages of 3D user interfaces: Intuitive metaphors from daily life, immersive workspaces, virtual environments that closely resemble natural ...
    • A Tri-Space Visualization Interface for Analyzing Time-Varying Multivariate Volume Data 

      Akiba, Hiroshi; Ma, Kwan-Liu (The Eurographics Association, 2007)
      The dataset generated by a large-scale numerical simulation may include thousands of timesteps and hundreds of variables describing different aspects of the modeled physical phenomena. In order to analyze and understand ...
    • See What You Know: Analyzing Data Distribution to Improve Density Map Visualization 

      Bertini, Enrico; Girolamo, Alessio Di; Santucci, Giuseppe (The Eurographics Association, 2007)
      Density maps allow for visually rendering density differences, usually mapping density values to a grey or color scale. The paper analyzes the drawbacks arising from the commonly used strategies and introduces a novel ...
    • Animation of Orthogonal Texture-Based Vector Field Visualization 

      Bachthaler, Sven; Weiskopf, Daniel (The Eurographics Association, 2007)
      This paper introduces orthogonal vector field visualization on 2D manifolds: a representation by lines that are perpendicular to the input vector field. Line patterns are generated by line integral convolution (LIC). This ...
    • Sonar Explorer: A New Tool for Visualization of Fish Schools from 3D Sonar Data 

      Balabanian, Jean-Paul; Viola, Ivan; Ona, Egil; Patel, Ruben; Groeller, Eduard (The Eurographics Association, 2007)
      We present a novel framework for analysis and visualization of fish schools in 3D sonar surveys. The 3D sonar technology is new and there have not been applications to visualize the data in 3D. We have created an application ...
    • Viewpoint Selection for Intervention Planning 

      Muehler, Konrad; Neugebauer, Mathias; Tietjen, Christian; Preim, Bernhard (The Eurographics Association, 2007)
      Viewpoint selection is crucial for medical intervention planning. The interactive exploration of a scene with 3d objects involves the systematic analysis of several anatomic structures. Viewpoint selection techniques enhance ...
    • Visualization Methods for Vortex Rings and Vortex Breakdown Bubbles 

      Peikert, Ronald; Sadlo, Filip (The Eurographics Association, 2007)
      Vortex breakdown bubbles are a subject which is of interest in many disciplines such as aeronautics, mixing, and combustion. Existing visualization methods are based on stream surfaces, direct volume rendering, tensor field ...
    • Feature Emphasis and Contextual Cutaways for Multimodal Medical Visualization 

      Burns, Michael; Haidacher, Martin; Wein, Wolfgang; Viola, Ivan; Groeller, Eduard (The Eurographics Association, 2007)
      Dense clinical data like 3D Computed Tomography (CT) scans can be visualized together with real-time imaging for a number of medical intervention applications. However, it is difficult to provide a fused visualization that ...
    • Functional Unit Maps for Data-Driven Visualization of High-Density EEG Coherence 

      Caat, Michael ten; Maurits, Natasha M.; Roerdink, Jos B. T. M. (The Eurographics Association, 2007)
      Synchronous electrical activity in different brain regions is generally assumed to imply functional relationships between these regions. A measure for this synchrony is electroencephalography (EEG) coherence, computed ...
    • The CoMIRVA Toolkit for Visualizing Music-Related Data 

      Schedl, Markus; Knees, Peter; Seyerlehner, Klaus; Pohle, Tim (The Eurographics Association, 2007)
      We present CoMIRVA, which is an abbreviation for Collection of Music Information Retrieval and Visualization Applications. CoMIRVA is a Java framework and toolkit for information retrieval and visualization. It is licensed ...
    • Online Dynamic Graph Drawing 

      Frishman, Yaniv; Tal, Ayellet (The Eurographics Association, 2007)
      This paper presents an algorithm for drawing a sequence of graphs online. The algorithm strives to maintain the global structure of the graph and thus the user's mental map, while allowing arbitrary modifications between ...
    • Parametric Visualization of High Resolution Correlated Multi-spectral Features Using PCA 

      Broersen, Alexander; Liere, Robert van; Heeren, Ron M. A. (The Eurographics Association, 2007)
      An imaging mass spectrometer is an analytical instrument that can determine the spatial distribution of chemical compounds on complex surfaces. The output of the device is a multi-spectral datacube; a three-dimensional ...
    • Path Visualization for Adjacency Matrices 

      Shen, Zeqian; Ma, Kwan-Liu (The Eurographics Association, 2007)
      For displaying a dense graph, an adjacency matrix is superior than a node-link diagram because it is more compact and free of visual clutter. A node-link diagram, however, is far better for the task of path finding because ...
    • Interactive Visual Exploration of Unsteady 3D Flows 

      Buerger, Kai; Schneider, Jens; Kondratieva, Polina; Krueger, J.; Westermann, Ruediger (The Eurographics Association, 2007)
      In this paper we present GPU-based techniques for the interactive visualization of large unsteady 3D flow fields on uniform grids. We propose a novel dual-core approach to asynchronously stream such fields from the CPU, ...
    • Visualization of Uncertainty in Lattices to Support Decision-Making 

      Collins, Christopher; Carpendale, Sheelagh; Penn, Gerald (The Eurographics Association, 2007)
      Lattice graphs are used as underlying data structures in many statistical processing systems, including natural language processing. Lattices compactly represent multiple possible outputs and are usually hidden from users. ...
    • Subdivision Volume Splatting 

      McDonnell, Kevin T.; Neophytou, Neophytos; Mueller, Klaus; Qin, Hong (The Eurographics Association, 2007)
      Volumetric Subdivision (VS) is a powerful paradigm that enables volumetric sculpting and realistic volume deformations that give rise to the concept of "virtual clay". In VS, volumes are commonly represented as a space-filling ...
    • Design of Multi-dimensional Transfer Functions Using Dimensional Reduction 

      Pinto, Francisco de Moura; Freitas, Carla M. D. S. (The Eurographics Association, 2007)
      Direct volume rendering techniques allow visualization of volume data without extracting intermediate geometry. The mapping from voxel attributes to optical properties is performed by transfer functions which, consequently, ...
    • Segmentation of DT-MRI Anisotropy Isosurfaces 

      Schultz, Thomas; Theisel, Holger; Seidel, Hans-Peter (The Eurographics Association, 2007)
      While isosurfaces of anisotropy measures for data from diffusion tensor magnetic resonance imaging (DT-MRI) are known to depict major anatomical structures, the anisotropy metric reduces the rich tensor data to a simple ...
    • Interactive Visualization of Multi-Field Medical Data Using Linked Physical and Feature-Space Views 

      Blaas, Jorik; Botha, Charl P.; Post, Frits H. (The Eurographics Association, 2007)
      Multi-field datasets contain multiple parameters defined over the same spatio-temporal domain. In medicine, such multi-field data is being used more often every day, and there is an urgent need for exploratory visualization ...