Now showing items 1-20 of 240

    • Transferring the Rig and Animations from a Character to Different Face Models 

      Orvalho, Veronica Costa; Zacur, Ernesto; Susin, Antonio (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      We introduce a facial deformation system that allows artists to define and customize a facial rig and later apply the same rig to different face models. The method uses a set of landmarks that define specific facial features ...
    • A Four-level Focus + Context Approach to Interactive Visual Analysis of Temporal Features in Large Scientific Data 

      Muigg, Philipp; Kehrer, Johannes; Oeltze, Steffen; Piringer, Harald; Doleisch, Helmut; Preim, Bernhard; Hauser, Helwig (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      In this paper we present a new approach to the interactive visual analysis of time-dependent scientific data - both from measurements as well as from computational simulation - by visualizing a scalar function over time ...
    • Animating Causal Overlays 

      Bartram, Lyn; Yao, Miao (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Most approaches to representing causality, such as the common causal graph, require a separate and static view, but in many cases it is useful to add the dimension of causality to the context of an existing visualization. ...
    • Particle Level Set Advection for the Interactive Visualization of Unsteady 3D Flow 

      Cuntz, Nicolas; Kolb, Andreas; Strzodka, Robert; Weiskopf, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Typically, flow volumes are visualized by defining their boundary as iso-surface of a level set function. Grid-based level sets offer a good global representation but suffer from numerical diffusion of surface detail, ...
    • Extraction Of Feature Lines On Surface Meshes Based On Discrete Morse Theory 

      Sahner, Jan; Weber, Britta; Prohaska, Steffen; Lamecker, Hans (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We present an approach for extracting extremal feature lines of scalar indicators on surface meshes, based on discrete Morse Theory. By computing initial Morse-Smale complexes of the scalar indicators of the mesh, we obtain ...
    • Physically-based Dye Advection for Flow Visualization 

      Li, Guo-Shi; Tricoche, Xavier; Hansen, Charles (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Dye advection is widely used in experimental flow analysis but has seen less use for visualization in computational fluid dynamics. One possible reason for this disconnect is the inaccuracy of the texture-based approach, ...
    • Visual Comparison of Hierarchically Organized Data 

      Holten, Danny; Wijk, Jarke J. van (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      We provide a novel visualization method for the comparison of hierarchically organized data. Our technique visualizes a pair of hierarchies that are to be compared and simultaneously depicts how these hierarchies are related ...
    • Quality Isosurface Mesh Generation Using an Extended Marching Cubes Lookup Table 

      Raman, Sundaresan; Wenger, Rephael (The Eurographics Association and Blackwell Publishing Ltd., 2008)
    • Exploiting Visibility Correlation in Direct Illumination 

      Clarberg, Petrik; Akenine-Moeller, Tomas (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      The visibility function in direct illumination describes the binary visibility over a light source, e.g., an environment map. Intuitively, the visibility is often strongly correlated between nearby locations in time and ...
    • High Performance GPU-based Proximity Queries using Distance Fields 

      Morvan, T.; Reimers, M.; Samset, E. (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      Proximity queries such as closest point computation and collision detection have many applications in computer graphics, including computer animation, physics-based modelling, augmented and virtual reality. We present ...
    • Virtual Klingler Dissection: Putting Fibers into Context 

      Schultz, Thomas; Sauber, Natascha; Anwander, Alfred; Theisel, Holger; Seidel, Hans-Peter (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Fiber tracking is a standard tool to estimate the course of major white matter tracts from diffusion tensor magnetic resonance imaging (DT-MRI) data. In this work, we aim at supporting the visual analysis of classical ...
    • Abstractive Representation and Exploration of Hierarchically Clustered Diffusion Tensor Fiber Tracts 

      Chen, Wei; Zhang, Song; Correia, Stephen; Ebert, David S. (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Diffusion tensor imaging (DTI) has been used to generate fibrous structures in both brain white matter and muscles. Fiber clustering groups the DTI fibers into spatially and anatomically related tracts. As an increasing ...
    • Geometry Textures and Applications 

      De Toledo, Rodrigo; Wang, Bin; Levy, Bruno (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      Geometry textures are a novel geometric representation for surfaces based on height maps. The visualization is done through a graphics processing unit (GPU) ray casting algorithm applied to the whole object. At rendering ...
    • Expressive Speech Animation Synthesis with Phoneme-Level Controls 

      Deng, Z.; Neumann, U. (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      This paper presents a novel data-driven expressive speech animation synthesis system with phoneme-level controls. This system is based on a pre-recorded facial motion capture database, where an actress was directed to ...
    • GPU-Based Spherical Light Field Rendering with Per-Fragment Depth Correction 

      Todt, S.; Rezk-Salama, C.; Kolb, A.; Kuhnert, K.-D. (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      Image-based rendering techniques are a powerful alternative to traditional polygon-based computer graphics. This paper presents a novel light field rendering technique which performs per-pixel depth correction of rays for ...
    • Untitled 

      Leotta, Matthew J.; Vandergon, Austin; Taubin, Gabriel (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      We present a planarity constraint and a novel three-dimensional (3D) point reconstruction algorithm for a multiview laser range slit scanner. The constraint is based on the fact that all observed points on a projected laser ...
    • Diffusion Based Photon Mapping 

      Schjoeth, L.; Sporring, J.; Fogh Olsen, O. (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      Density estimation employed in multi-pass global illumination algorithms give cause to a trade-off problem between bias and noise. The problem is seen most evident as blurring of strong illumination features. In particular, ...
    • Classification and Uncertainty Visualization of Dendritic Spines from Optical Microscopy Imaging 

      Janoos, Firdaus; Nouansengsy, Boonthanome; Xu, Xiaoyin; Machiraju, Raghu; Wong, Stephen T. C. (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      Abstract Neuronal dendrites and their spines affect the connectivity of neural networks, and play a significant role in many neurological conditions. Neuronal function is observed to be closely correlated with the appearance, ...
    • GPU Local Triangulation: an Interpolating Surface Reconstruction Algorithm 

      Buchart, Carlos; Borro, Diego; Amundarain, Aiert (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      A GPU capable method for surface reconstruction from unorganized point clouds without additional information, called GLT (GPU Local Triangulation), is presented. The main objective of this research is the generation of a ...
    • TimeRadarTrees: Visualizing Dynamic Compound Digraphs 

      Burch, Michael; Diehl, Stephan (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      The evolution of dependencies in information hierarchies can be modeled by sequences of compound digraphs with edge weights. In this paper we present a novel approach to visualize such sequences of graphs. It uses radial ...