Browsing VisSym04: Joint Eurographics - IEEE TCVG Symposium on Visualization by Title

Now showing items 11-30 of 39

    • Efficient Display of Background Objects for Virtual Endoscopy using Flexible First-Hit Ray Casting 

      Neubauer, A.; Forster, M.; Wegenkittl, R.; Mroz, L.; Bühler, K. (The Eurographics Association, 2004)
      Many applications of virtual endoscopy require the display of background objects behind the semi-transparent surface of the investigated organ. This paper deals with pre-processing and visualization of background objects ...

    • Efficient Isosurface Tracking Using Precomputed Correspondence Table 

      Ji, Guangfeng; Shen, Han-Wei (The Eurographics Association, 2004)
      Feature tracking is a useful method for visualizing and analyzing time-varying scalar fields. It allows scientists to focus on regions of interest and track their evolution and interaction over time. To allow the user to ...

    • Efficient Isosurface Tracking Using Precomputed Correspondence Table 

      Ji, Guangfeng; Shen, Han-Wei (The Eurographics Association, 2004)
      Feature tracking is a useful method for visualizing and analyzing time-varying scalar fields. It allows scientists to focus on regions of interest and track their evolution and interaction over time. To allow the user to ...

    • Generalized Distance Transforms and Skeletons in Graphics Hardware 

      Strzodka, R.; Telea, A. (The Eurographics Association, 2004)
      We present a framework for computing generalized distance transforms and skeletons of two-dimensional objects using graphics hardware. Our method is based on the concept of footprint splatting. Combining different splats ...

    • Graph Drawing by Subspace Optimization 

      Koren, Yehuda (The Eurographics Association, 2004)
      We show a novel approach for accelerating the computation of graph drawing algorithms. The method is based on the notion that we can find a subspace with a relatively low dimensionality that captures the "nice" layouts of ...

    • High-Quality Lighting and Efficient Pre-Integration for Volume Rendering 

      Lum, Eric B.; Wilson, Brett; Ma, Kwan-Liu (The Eurographics Association, 2004)
      Pre-integrated volume rendering is an effective technique for generating high-quality visualizations. The precomputed lookup tables used by this method are slow to compute and can not include truly pre-integrated lighting ...

    • Illustrating Surfaces in Volume 

      Yuan, Xiaoru; Chen, Baoquan (The Eurographics Association, 2004)
      This paper presents a novel framework for illustrating surfaces in a volume. Surfaces are illustrated by drawing only feature lines, such as silhouettes, valleys, ridges, and surface hatching strokes, and are embedded in ...

    • Interaction Spaces in Data and Information Visualization 

      Ward, M.; Yang, J. (The Eurographics Association, 2004)
      User interaction plays an integral part in the effective visualization of data and information. Typical interaction operations include navigation, selection, and distortion. A problem that can occur when these operations ...

    • Interactive High Quality Trimmed NURBS Visualization Using Appearance Preserving Tessellation 

      Guthe, M.; Balázs, Á.; Klein, R. (The Eurographics Association, 2004)
      Trimmed NURBS models are the standard representation used in CAD/CAM systems and accurate visualization of large trimmed NURBS models at interactive frame rates is of great interest for industry. To visualize the quality ...

    • Interactive TreemapsWith Detail on Demand to Support Information Search in Documents 

      Schlechtweg, Stefan; Schulze-Wollgast, Petra; Schumann, Heidrun (The Eurographics Association, 2004)
      This paper addresses the issue of how information visualization techniques can be used to assist full-text search in electronic documents. Our approach supports multiple term queries with interactive treemaps. We use a ...

    • Interactively Visualizing Procedurally Encoded Scalar Fields 

      Jang, Yun; Weiler, Manfred; Hopf, Matthias; Huang, Jingshu; Ebert, David S.; Gaither, Kelly P.; Ertl, Thomas (The Eurographics Association, 2004)
      While interactive visualization of rectilinear gridded volume data sets can now be accomplished using texture mapping hardware on commodity PCs, interactive rendering and exploration of large scattered or unstructured data ...

    • Medical Applications of Multi-Field Volume Rendering and VR Techniques 

      Kniss, Joe; Schulze, Jürgen P.; Wössner, Uwe; Winkler, Peter; Lang, Ulrich; Hansen, Charles (The Eurographics Association, 2004)
      This paper reports on a new approach for visualizing multi-field MRI or CT datasets in an immersive environment with medical applications. Multi-field datasets combine multiple scanning modalities into a single 3D, ...

    • Meshless Isosurface Generation from Multiblock Data 

      Co, Christopher S.; Porumbescu, Serban D.; Joy, Kenneth I. (The Eurographics Association, 2004)
      We propose a meshless method for the extraction of high-quality continuous isosurfaces from volumetric data represented by multiple grids, also called "multiblock" data sets. Multiblock data sets are commonplace in ...

    • Occlusion Culling for Sub-Surface Models in Geo-Scientific Applications 

      Plate, John; Grundhoefer, Anselm; Schmidt, Benjamin; Froehlich, und Bernd (The Eurographics Association, 2004)
      Modern graphics cards support occlusion culling in hardware. We present a three pass algorithm, which makes efficient use of this feature. Our geo-scientific sub-surface data sets consist typically of a set of high resolution ...

    • Ray Casting Curved-Quadratic Elements 

      Wiley, D. F.; Childs, H. R.; Hamann, B.; Joy, K. I. (The Eurographics Association, 2004)
      We present a method for ray casting curved-quadratic elements in 3D. The advantages of this approach is that a curved element can be directly visualized. Conventionally, higher-order elements are tessellated with several ...

    • Shape-Embedded-Histograms for Visual Data Mining 

      Amir, Amihood; Kashi, Reuven; Keim, Daniel A.; Netanyahu, Nathan S.; Wawryniuk, Markus (The Eurographics Association, 2004)
      Scatterplots are widely used in exploratory data analysis and class visualization. The advantages of scatterplots are that they are easy to understand and allow the user to draw conclusions about the attributes which span ...

    • Software Landscapes: Visualizing the Structure of Large Software Systems 

      Balzer, Michael; Noack, Andreas; Deussen, Oliver; Lewerentz, Claus (The Eurographics Association, 2004)
      Modern object-oriented programs are hierarchical systems with many thousands of interrelated subsystems. Visualization helps developers to better comprehend these large and complex systems. This paper presents a three-dimensional ...

    • Superquadric Tensor Glyphs 

      Kindlmann, Gordon (The Eurographics Association, 2004)
      Tensor field visualization is a challenging task due in part to the multi-variate nature of individual tensor samples. Glyphs convey tensor variables by mapping the tensor eigenvectors and eigenvalues to the orientation ...

    • Surface Techniques for Vortex Visualization 

      Garth, Christoph; Tricoche, Xavier; Salzbrunn, Tobias; Bobach, Tom; Scheuermann, Gerik (The Eurographics Association, 2004)
      This paper presents powerful surface based techniques for the analysis of complex flow fields resulting from CFD simulations. Emphasis is put on the examination of vortical structures. An improved method for stream surface ...

    • Techniques for Visualizing Multi-Valued Flow Data 

      Urnessy, Timothy; Interrante, Victoria; Longmire, Ellen; Marusic, Ivan; Ganapathisubramani, Bharathram (The Eurographics Association, 2004)
      In this paper we discuss several techniques to display multiple scalar distributions within an image depicting a 2D flow field. We first address how internal contrast and mean luminance can effectively be used to represent ...