Now showing items 59-78 of 89

    • A Light Hierarchy for Fast Rendering of Scenes with Many Lights 

      Paquette, Eric; Poulin, Pierre; Drettakis, George (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      We introduce a new data structure in the form of a light hierarchy for efficiently ray-tracing scenes with many light sources. An octree is constructed with the point light sources in a scene. Each node represents all the ...
    • Mass-Spring Simulation using Adaptive Non-Active Points 

      Howlett, P.; Hewitt, W.T. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      This paper introduces an adaptive component to a mass-spring system as used in the modelling of cloth for computer animation. The new method introduces non-active points to the model which can adapt the shape of the cloth ...
    • Maximum Intensity Projection Using Splatting in Sheared Object Space 

      Cai, Wenli; Sakas, Georgios (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      In this paper we present a new Maximum Intensity Projection (MIP) algorithm which was implemented employing splatting in a shear-warp context. This algorithm renders a MIP image by first splatting each voxel on two ...
    • Metro: Measuring Error on Simplified Surfaces 

      Cignoni, P.; Rocchini, C.; Scopigno, R. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      This paper presents a new tool, Metro, designed to compensate for a deficiency in many simplification methods proposed in literature. Metro allows one to compare the difference between a pair of surfaces (e.g. a triangulated ...
    • A Modelling Method and User Interface for Creating Plants 

      Lintermann, Bernd; Deussen, Oliver (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      We present a modelling method and graphical user interface for the creation of natural branching structures such as plants. Structural and geometric information is encapsulated in objects that are combined to form a ...
    • Molecular Dynamics Simulation in Virtual Environments 

      Ai, Z.; Frohlich, T. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      A virtual environment for interactive molecular dynamics simulation has been designed and implemented at the Fraunhofer Institute for Computer Graphics. Different kinds of virtual reality devices are used in the environment ...
    • Multiresolution Isosurface Extraction with Adaptive Skeleton Climbing 

      Poston, Tim; Wong, Tien-Tsin; Heng, Pheng-Ann (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      An isosurface extraction algorithm which can directly generate multiresolution isosurfaces from volume data is introduced. It generates low resolution isosurfaces, with 4 to 25 times fewer triangles than that generated by ...
    • Network Service 

      Unknown author (Blackwell Publishers Ltd and the Eurographics Association, 1998)
    • Network Service 

      Unknown author (Blackwell Publishers Ltd and the Eurographics Association, 1998)
    • A New Approach for Direct Manipulation of Free-Form Curve 

      Zheng, J.M.; Chan, K.W.; Gibson, I. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      There is an increasing demand for more intuitive methods for creating and modifying free-form curves and surfaces in CAD modeling systems. The methods should be based not only on the change of the mathematical parameters, ...
    • Ninth Eurographics Workshop on Visualization in Scientific Computing, Blaubeuren, Germany, April 20-22 1998 

      Duce, D. A. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
    • Optical Flow Rendering 

      Park, Tae-Joon; Shin, Sung Yong; Lee, Seungyong (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      This paper proposes a new approach to image-based rendering that generates an image viewed from an arbitrary camera position and orientation by rendering optical flows extracted from reference images. To derive valid optical ...
    • Perception Based Color Image Difference 

      Neumann, Laszlo; Matkovic, Kresimir; Purgathofer, Werner (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      A good image metric is often needed in digital image synthesis. It can be used to check the convergence behavior in progressive methods, to compare images rendered using various rendering methods etc. Since images are ...
    • Preface 

      Ferreira, F.; Goebel, Martin (Blackwell Publishers Ltd and the Eurographics Association, 1998)
    • The Priority Face Determination Tree for Hidden Surface Removal 

      James, A.; Day, A. M. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      Many virtual environments are built from a set of polygons that form the basis of objects in the scene. Using priority-list algorithms, the sequence in which these polygons are drawn is dependent upon the location of an ...
    • Programming Paradigms in an Object-Oriented Multimedia Standard 

      Duke, D. J.; Herman, I. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      Of the various programming paradigms in use today, object-orientation is probably the most successful in terms of industrial take-up and application, particularly in the field of multimedia. It is therefore unsurprising ...
    • Progressive Iso-Surface Extraction from Hierarchical 3D Meshes 

      Grosso, Roberto; Ertl, Thomas (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      A multiresolution data decomposition offers a fundamental framework supporting compression, progressive transmission, and level-of-detail (LOD) control for large two or three dimensional data sets discretized on complex ...
    • Rapid and Accurate Contact Determination between Spline Models using ShellTrees 

      Krishnan, S.; Gopi, M.; Lin, M.; Manocha, D.; Pattekar, A. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      In this paper, we present an efficient algorithm for contact determination between spline models. We make use of a new hierarchy, called ShellTree, that comprises of spherical shells and oriented bounding boxes. Each ...
    • Real-time Biomechanically-based Muscle Volume Deformation using FEM 

      Zhu, Qing-hong; Chen, Yan; Kaufman, Arie (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      This paper presents a voxel-based biomechanical model for muscle deformation using finite element method (FEM) and volume graphics. Hierarchical voxel meshes are reconstructed from filtered segmented muscle images followed ...
    • Reference Models for Distributed Cooperative Visualization 

      Duce, D. A.; Giorgetti, D.; Cooper, C. S.; Gallop, J. R.; Johnson, I. J.; Robinson, K.; Seelig, C. D. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      In this paper reference models for visualization systems that have appeared in the literature are surveyed and a new reference model for distributed cooperative visualization developed in the MANICORAL project (funded by ...