Eurovis: Eurographics Conference on Visualization: Recent submissions

Now showing items 721-740 of 762

    • 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 ...

    • 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 ...

    • Topology-Based Visualization of Time-Dependent 2D Vector Fields 

      Tricoche, Xavier; Scheuermann, Gerik; Hagen, Hans (The Eurographics Association, 2001)
      Topology-based methods have been successfully applied to the visualization of instantaneous planar vector fields. In this paper, we present the topology-based visualization of time-dependent 2D flows. Our method tracks ...

    • 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 ...

    • Stream Surface Generation for Fluid Flow Solutions on Curvilinear Grids 

      Gelder, Allen Van (The Eurographics Association, 2001)
      A stream surface in a steady-state three-dimensional fluid flow vector field is a surface across which there is no flow. Stream surfaces can be useful for visualization because the amount of data presented in one visualization ...

    • Virtual Colon Flattening 

      Bartroli, A. Vilanova; R.Wegenkittl,; König, A.; Gröller, E.; Sorantin, E. (The Eurographics Association, 2001)
      We present a new method to visualize virtual endoscopic views. We propose to flatten the organ by the direct projection of the surface onto a set of cylinders. Two sampling strategies are presented and the introduced ...

    • Vector and Tensor Field Topology Simplification on Irregular Grids 

      Tricoche, Xavier; Scheuermann, Gerik; Hagen, Hans; Clauss, Stefan (The Eurographics Association, 2001)
      Topology-based visualization of planar turbulent flows results in visual clutter due to the presence of numerous features of very small scale. In this paper, we attack this problem with a topology simplification method for ...

    • Subdivision Surfaces for Scattered-data Approximation 

      Bertram, Martin; Hagen, Hans (The Eurographics Association, 2001)
      We propose a modified Loop subdivision surface scheme for the approximation of scattered data in the plane. Starting with a triangulated set of scattered data with associated function values, our scheme applies linear, ...

    • 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 ...

    • Multiresolution Maximum Intensity Volume Rendering by Morphological Pyramids 

      Roerdink, Jos B.T.M. (The Eurographics Association, 2001)
      We propose a multiresolution representation for maximum intensity projection (MIP) volume rendering, based on morphological pyramids which allow progressive refinement and have the property of perfect reconstruction. The ...

    • Fast Multiresolution Extraction of Multiple Transparent Isosurfaces 

      Gerstner, Thomas (The Eurographics Association, 2001)
      In this paper, we present a multiresolution algorithm which is capable to render multiple transparent isosurfaces under real time constraints. To this end, the underlying 3D data set is covered with a hierarchical tetrahedral ...

    • Extraction of Crack-free Isosurfaces from Adaptive Mesh Refinement Data 

      Weber, Gunther H.; Kreylos, Oliver; Ligocki, Terry J.; Shalf, John M.; Hagen, Hans; Hamann, Bernd; Joy, Kenneth I. (The Eurographics Association, 2001)
      Adaptive mesh refinement (AMR) is a numerical simulation technique used in computational fluid dynamics (CFD). It permits the efficient simulation of phenomena characterized by substantially varying scales in complexity ...

    • A Case Study in Multi-Sensory Investigation of Geoscientific Data 

      Harding, Chris; Kakadiaris, Ioannis A.; Casey, John F.; Loftin, R. Bowen (The Eurographics Association, 2001)
      In this paper, we report our ongoing research into multi-sensory investigation of geoscientific data. Our Geoscientific Data Investigation System (GDIS) integrates three-dimensional, interactive computer graphics, touch ...

    • Acquisition and Display of Real-Time Atmospheric Data on Terrain 

      Jiang, Tian-yue; Ribarsky, William; Wasilewski, Tony; Faust, Nickolas; Hannigan, Brendan; Parry, Mitchell (The Eurographics Association, 2001)
      This paper investigates the integrated acquisition, organization, and display of data from disparate sources, including the display of data acquired in real-time. In this case real-time acquisition and display refers to ...

    • Towards visual matching as a way of transferring pre-operative surgery planning 

      Buck, Stijn De; Cleynenbreugel, Johan Van; Marchal, Guy; Suetens, Paul (The Eurographics Association, 2000)
      This paper presents a case study towards intra-operative visualization of pre-operative medical images and surgery planning information. We describe a two stage procedure to provide a surgeon with valuable information ...

    • Case Study: Resource Steering in a Visualization System 

      Chi, Ed H.; Riedl, John T. (The Eurographics Association, 2000)
      Visual computational steering environments extend traditional visualization environments by enabling the user to interactively steer the computations applied to the data. In this paper, we develop a new type of computational ...

    • A Case Study of Isosurface Extraction Algorithm Performance 

      Sutton, Philip M.; Hansen, Charles D.; Shen, Han-Wei; Schikore, Dan (The Eurographics Association, 2000)
      Isosurface extraction is an important and useful visualization method. Over the past ten years, the field has seen numerous isosurface techniques published, leaving the user in a quandary about which one should be used. ...

    • WWW-based Visualization of the Real Time Run of a Space Weather Forecasting Model 

      Maurtis, Sergei; McAllister, Jeff; Watkins, Brenton (The Eurographics Association, 2000)
      As use of earth-orbiting space technology increases, so does the need to understand and forecast the space weather. The University of Alaska Fairbanks Eulerian Parallel Polar Ionosphere Model (UAF EPPIM) is a first principles ...

    • Fast Visualization of Special Relativistic Effects on Geometry and Illumination 

      Weiskopf, Daniel (The Eurographics Association, 2000)
      This paper describes a novel rendering technique for the special relativistic visualization of the geometry and illumination of fast moving objects. The physical basis consists of the relativistic aberration of light, the ...