Now showing items 1-20 of 33

    • Progressive View-Dependent Isosurface Propagation 

      Liu, Zhiyan; Finkelstein, Adam; Li, Kai (The Eurographics Association, 2001)
      This paper proposes a new isosurface extraction algorithm that extracts portions of the isosurface in a view-dependent manner by ray casting and propagation. The algorithm casts rays through a volume to find visible active ...
    • Interactive and Multi-modal Visualization for Neuroendoscopic Interventions 

      Bartz, Dirk; Straßer, Wolfgang; Gürvit, Özlem; Freudenstein, Dirk; Skalej, Martin (The Eurographics Association, 2001)
      Based on the VIVENDI-framework for virtual endoscopy, we present a system for the interactive and multi-modal representation of important anatomical structures for neuroendoscopic interventions. A serious problem of ...
    • I/O-Conscious Volume Rendering 

      Yang, Chuan-Kai; Chiueh, Tzi-cker (The Eurographics Association, 2001)
      Most existing volume rendering algorithms assume that data sets are memory-resident and thus ignore the performance overhead of disk I/O. While this assumption may be true for high-performance graphics machines, it does ...
    • Comparative Visualization of Instabilities in Crash-Worthiness Simulations 

      Sommer, Ove; Ertl, Thomas (The Eurographics Association, 2001)
      Since crash-worthiness simulations get more and more important as part of the car development process in order to reduce the cost of development, enhance the product quality, and minimize the time-to-market, the reliability ...
    • Salient Representation of Volume Data 

      Hladuvka, Jiri; König, Andreas; Gröller, Eduard (The Eurographics Association, 2001)
      We introduce a novel method for identification of objects of interest in volume data. Our approach conveys the information contained in two essentially different concepts, the object s boundaries and the narrow solid ...
    • Interacting with Stock Market Data in a Virtual Environment 

      Nesbitt, Keith (The Eurographics Association, 2001)
      Virtual Environment technology enables new styles of user interfaces that provide multi-sensory interactions. For example, interfaces can be designed which immerse the user in a 3D space and provide multi-sensory feedback. ...
    • Three-dimensional Reconstruction and Visualization of the Cerebral Cortex in Primates 

      Demelio, Sergio; Bettio, Fabio; Gobbetti, Enrico; Luppino, Giuseppe (The Eurographics Association, 2001)
      We present a prototype interactive application for the direct analysis in three dimensions of the cerebral cortex in primates. The paper provides an overview of the current prototype system and presents the techniques used ...
    • Improved visualization in virtual colonoscopy using image-based rendering 

      Serlie, Iwo; Vos, Frans; Gelder, Rogier van; Stoker, Jaap; Truyen, Roel; Gerritsen, Frans; Nio, Yung; Post, Frits (The Eurographics Association, 2001)
      Virtual colonoscopy (VC) is a patient-friendly alternative for colorectal endoscopic examination. We explore visualization aspects of VC such as surface in view, navigation and communication of a diagnosis. A series of ...
    • A Selective Refinement Approach for Computing the Distance Functions of Curves 

      Laney, Daniel E.; Duchaineau, Mark A.; Max, Nelson L. (The Eurographics Association, 2001)
      We present an adaptive signed distance transform algorithm for curves in the plane. A hierarchy of bounding boxes is required for the input curves. We demonstrate the algorithm on the isocontours of a turbulence simulation. ...
    • A Hardware-Assisted Visibility-Ordering Algorithm With Applications To Volume Rendering 

      Krishnan, Shankar; Silva, Cláudio T.; Wei, Bin (The Eurographics Association, 2001)
      We propose a hardware-assisted visibility ordering algorithm. From a given viewpoint, a (back-to-front) visibility ordering of a set of objects is a partial order on the objects such that if object A obstructs object B, ...
    • Visualization of Generalized Voronoi Diagrams 

      Telea, Alexandru; Wijk, Jarke J. van (The Eurographics Association, 2001)
      Voronoi diagrams are an important data structure in computer science. However well studied mathematically, understanding such diagrams for different metrics, orders, and site shapes is a complex task. We propose a new ...
    • DDDiver: 3D Interactive Visualization of Entity Relationships 

      Coomans, Marc; Timmermans, Harry (The Eurographics Association, 2001)
      In this paper we present DDDiver, a tool for the interactive visualization and editing of Object-Oriented databases. It was developed to visualize and manipulate large loosely-structured data sets with multiple relation ...
    • Automotive Soiling Simulation Based On Massive Particle Tracing 

      Roettger, Stefan; Schulz, Martin; Bartelheimer, Wolf; Ertl, Thomas (The Eurographics Association, 2001)
      In the automotive industry Lattice-Boltzmann type flow solvers like PowerFlow from Exa Corporation are becoming increasingly important. In contrast to the traditional finite volume approach PowerFlow utilizes a hierachical ...
    • Case Study: Visualization and Information Retrieval Techniques for Network Intrusion Detection 

      Atkison, Travis; Pensy, Kathleen; Nicholas, Charles; Ebert, David; Atkison, Rebekah; Morris, Chris (The Eurographics Association, 2001)
      We describe our efforts to analyze network intrusion detection data using information retrieval and visualization tools. By regarding Telnet sessions as documents, which may or may not include attacks, a session that ...
    • Preserving the Mental Map using Foresighted Layout 

      Diel, Stepahn; Görg, Carsten; Kerren, Andreas (The Eurographics Association, 2001)
      First we introduce the concept of graph animations as a sequence of evolving graphs and a generic algorithm which computes a Foresighted Layout for dynamically drawing these graphs while preserving the mental map. The ...
    • Volume Rendering Data with Uncertainty Information 

      Djurcilov, Suzana; Kim, Kwansik; Lermusiaux, Pierre F. J.; Pang, Alex (The Eurographics Association, 2001)
      This paper explores two general methods for incorporating volumetric uncertainty information in direct volume rendering. The goal is to produce volume rendered images that depict regions of high (or low) uncertainty in the ...
    • Visualization of Thermal Flows in an Automotive Cabin with Volume Rendering Method 

      Ono, Kenji; Matsumoto, Hideki; Himeno, Ryutaro (The Eurographics Association, 2001)
      A predictive system of thermal flow with quick turnaround time in a passenger compartment has been developed. An efficient method based on the Cartesian mesh system was used to reduce the period of analysis. The computed ...
    • The Rendering of Unstructured Grids Revisited 

      Westermann, Rüdiger (The Eurographics Association, 2001)
      In this paper we propose a technique for resampling scalar fields given on unstructured tetrahedral grids. This technique takes advantage of hardware accelerated polygon rendering and 2D texture mapping and thus avoids any ...
    • Nonlinear Diffusion in Graphics Hardware 

      Rumpf, M.; Strzodka, R. (The Eurographics Association, 2001)
      Multiscale methods have proved to be successful tools in image denoising, edge enhancement and shape recovery. They are based on the numerical solution of a nonlinear diffusion problem where a noisy or damaged image which ...
    • Voxel Column Culling: Occlusion Culling for Large Terrain Models 

      Zaugg, Brian; Egbert, Parris K. (The Eurographics Association, 2001)
      We present Voxel Column Culling, an occlusion culling algorithm for real-time rendering of large terrain models. This technique can greatly reduce the number of polygons that must be rendered every frame, allowing a larger ...