Browsing Issue 3 by Title

Now showing items 21-40 of 41

    • Interactive 3D Morphing 

      Bao, Hujun; Peng, Qunsheng (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      A new 3D morphing algorithm for polyhedral objects with the same genus is presented in the paper. Our main contribution is an efficient and general algorithm for setting up the vertex correspondence between the polyhedra. ...

    • 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 ...

    • 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 ...

    • 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, ...

    • 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)

    • 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 ...

    • Screen-Space Constraints for Camera Movements: the Virtual Cameraman 

      Jardillier, Frank; Languenou, Eric (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      This article presents a virtual cameraman which allows us to obtain the whole set of camera movements satisfying user defined constraints specified in the image space and/or constraints on the objects of the scene. This ...

    • Simulating Wood Using a Voxel Approach 

      Buchanan, John W. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      In this paper we present a technique for generating three-dimensional wood textures using a regular texture array. Currently three-dimensional wood textures are generated using procedural textures. Procedural textures are ...

    • Space Discretization for Efficient Human Navigation 

      Bandi, Srikanth; Thalmann, Daniel (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      There is a large body of research on motion control of legs in human models. However, they require specification of global paths in which to move. A method for automatically computing a global motion path for a human in ...

    • Subdivision Schemes for Thin Plate Splines 

      Weimer, Henrik; Warren, Joe (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      Thin plate splines are a well known entity of geometric design. They are defined as the minimizer of a variational problem whose differential operators approximate a simple notion of bending energy. Therefore, thin plate ...

    • The Art of Knitted Fabrics, Realistic & Physically Based Modelling Of Knitted Patterns 

      Meißner, M.; Eberhardt, B. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      In this paper we will present a system to use three dimensional computer graphics in garment design. This system is capable to visualize the "real", i.e. the physically correct, appearance of a knitted fabric. A fast ...

    • A Two-Pass Hardware-Based Method for Hierarchical Radiosity 

      Martin, I.; Pueyo, X.; Tost, D. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      Finite elements methods for radiosity are aimed at computing global illumination solutions efficiently. However these methods are not suitable for obtaining high quality images due to the lack of error control. Two-pass ...

    • Using Wavefront Tracing for the Visualization and Optimization of Progressive Lenses 

      Loos, J.; Slusallek, Ph.; Seidel, H.-P. (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      Progressive addition lenses are a relatively new approach to compensate for defects of the human visual system. While traditional spectacles use rotationally symmetric lenses, progressive lenses require the specification ...