Now showing items 21-40 of 48

    • A Framework for Interactive Visualization and Classification of Dynamical Processes at the Water Surface 

      Wanner, Sven; Sommer, Christoph; Rocholz, Roland; Jung, Michael; Hamprecht, Fred; Jähne, Bernd (The Eurographics Association, 2011)
      A framework for the visualization and classification of multi-channel spatio-temporal data from water wave imaging is presented. Our interactive visualization tool, WaveVis, allows a detailed study of the water surface ...
    • A Clustering-based Visualization Technique to Emphasize Meaningful Regions of Vector Fields 

      Kuhn, Alexander; Lehmann, Dirk J.; Gaststeiger, Rocco; Neugebauer, Matthias; Preim, Bernhard; Theisel, Holger (The Eurographics Association, 2011)
      This paper proposes a vector field visualization approach that extracts and visualizes grouped regions of static 3D vector fields of similar curvature behavior. These regions are argued to ease the recognition of regions ...
    • A View-Dependent and Inter-Frame Coherent Visualization of Integral Lines using Screen Contribution 

      Günther, Tobias; Bürger, Kai; Westermann, Rüdiger; Theisel, Holger (The Eurographics Association, 2011)
      In vector field visualization, integral lines like stream, path, or streak lines are often used to examine the behavior of steady and unsteady flows. In 3D, however, visualizing integral lines is problematic since the ...
    • AFiT - Atrial Fibrillation Ablation Planning Tool 

      Brost, Alexander B.; Bourier, Felix; Kleinoeder, Andreas; Raab, Jens; Koch, Martin; Stamminger, Marc; Hornegger, Joachim; Strobel, Norbert; Kurzidim, Klaus (The Eurographics Association, 2011)
      The planning of cryo-balloon ablations for treatment of atrial fibrillation is a crucial task for a physician as he has to determine which size of the balloon catheter is required for isolation at each pulmonary vein. ...
    • Adaptive Sampling for Geometry-aware Reconstruction Filters 

      Bauszat, Pablo; Eisemann, Martin; Magnor, Marcus (The Eurographics Association, 2011)
      We present an adaptive sampling scheme for Monte-Carlo-based renderers with the aim to support geometryaware filtering techniques for interactive computation of global illumination. While sophisticated filtering techniques ...
    • Adaptive Level-of-Precision for GPU-Rendering 

      Meyer, Quirin; Sussner, Gerd; Greiner, Günter; Stamminger, Marc (The Eurographics Association, 2011)
      Video memory is a valuable resource that has grown much slower than the rendering power of GPUs over the last years. Today, video memory is often the limiting factor in interactive high-quality rendering applications. The ...
    • Bent Normals and Cones in Screen-space 

      Klehm, Oliver; Ritschel, Tobias; Eisemann, Elmar; Seidel, Hans-Peter (The Eurographics Association, 2011)
      Ambient occlusion (AO) is a popular technique for real-time as well as offline rendering. One of its benefits is a gain in efficiency due to the fact that occlusion and shading are decoupled which results in an average ...
    • Real-time Rendering of Stack-based Terrains 

      Löffler, Falko; Müller, Andreas; Schumann, Heidrun (The Eurographics Association, 2011)
      Usually, terrain rendering relies on a 2D regular grid of height values, the so called height field. Height fields describe 2.5D surfaces and are not able to present complex 3D terrain features. In contrast, a 3D data ...
    • Extracting Flow Structures Using Sparse Particles 

      Agranovsky, Alexy; Garth, Christoph; Joy, Kenneth I. (The Eurographics Association, 2011)
      In recent years, Lagrangian Coherent Structures (LCS) have been characterized using the Finite-Time Lyapunov Exponent, following the advection of a dense set of particles into a corresponding flow field. The large amount ...
    • Particle-Based Anisotropic Sampling for Two-Dimensional Tensor Field Visualization 

      Kratz, Andrea; Kettlitz, Nino; Hotz, Ingrid (The Eurographics Association, 2011)
      We present a particle-based approach to generate unstructured distributions of elliptical samples. Size and shape of the samples are determined by a local metric that is derived from a two-dimensional tensor field. In ...
    • AVDT - Automatic Visualization of Descriptive Texts 

      Spika, Christian; Schwarz, Katharina; Dammertz, Holger; Lensch, Hendrik P. A. (The Eurographics Association, 2011)
      Expressing mental images visually as 3D scenes is a time-consuming challenge. Therefore, we employ natural language to facilitate the creation of virtual environments. In this paper, we present a framework, which automatically ...
    • Fast and Efficient 3D Chamfer Distance Transform for Polygonal Meshes 

      Martinek, Michael; Grosso, Roberto; Greiner, Günther (The Eurographics Association, 2011)
      We present an efficient GPU-based method to perform 3D chamfer distance transform (CDT) in a wavefront scheme. In this context, we also introduce a binary voxelization algorithm which provides the initial boundary condition ...
    • A Cluster Hierarchy-based Volume Rendering Approach for Interactive Visual Exploration of Multi-variate Volume Data 

      Dobrev, Petar; Long, Tran Van; Linsen, Lars (The Eurographics Association, 2011)
      Interactive visual analysis of volumetric data relies on intuitive, yet powerful mechanisms to generate transfer functions. For multi-variate data, traditional methods for interactive transfer functions generation are of ...
    • SBL Mesh Filter: A Fast Separable Approximation of Bilateral Mesh Filtering 

      Vialaneix, Guillaume; Boubekeur, Tamy (The Eurographics Association, 2011)
      Bilateral mesh filtering is a simple and powerful feature-preserving filtering operator which allows to smooth or remove noise from surface meshes while preserving important features in a non-iterative way. However, to be ...
    • Koiter's Thin Shells on Catmull-Clark Limit Surfaces 

      Wawrzinek, Anna; Hildebrandt, Klaus; Polthier, Konrad (The Eurographics Association, 2011)
      We present a discretization of Koiter's model of elastic thin shells based on a finite element that employs limit surfaces of Catmull Clark's subdivision scheme. The discretization can directly be applied to control grids ...
    • Surface Reconstruction from Multi-resolution Sample Points 

      Mücke, Patrick; Klowsky, Ronny; Goesele, Michael (The Eurographics Association, 2011)
      Robust surface reconstruction from sample points is a challenging problem, especially for real-world input data. We significantly improve on a recent method by Hornung and Kobbelt [HK06b] by implementing three major ...
    • Warp-based Near-Regular Texture Analysis for Image-based Texture Overlay 

      Hilsmann, Anna; Schneider, David C.; Eisert, Peter (The Eurographics Association, 2011)
      Image-based texture overlay or retexturing is the process of augmenting a surface in an image or a video sequence with a new, synthetic texture. Some properties of the original texture such as texture distortion as well ...
    • Object-aware Gradient-Domain Image Compositing 

      Eisemann, Martin; Kokemüller, Jan; Magnor, Marcus (The Eurographics Association, 2011)
      We describe an approach to suppress bleeding artifacts without altering the boundary location in gradient-domain compositing, a technique to create seamless composites. While gradient-domain compositing has become a stan- ...
    • Near-Regular Texture Synthesis by Random Sampling and Gap Filling 

      Recas, Diego Lopez; Hilsmann, Anna; Eisert, Peter (The Eurographics Association, 2011)
      This paper addresses the synthesis of near-regular textures, i.e. textures that consist of a regular global structure plus subtle yet very characteristic stochastic irregularities. Such textures are difficult to synthesize ...
    • Smooth Transitions for Large Scale Changes in Multi-Resolution Images 

      Lancelle, Marcel; Fellner, Dieter W. (The Eurographics Association, 2011)
      Today's super zoom cameras offer a large optical zoom range of over 30x. It is easy to take a wide angle photograph of the scene together with a few zoomed in high resolution crops. Only little work has been done to ...