Browsing Volume 20 (2001) by Title

Now showing items 1-20 of 88

    • 3D Metamorphosis Between Different Types of Geometric Models 

      Breen, David E.; Mauch, Sean; Whitaker, Ross T.; Mao, Jia (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      We present a powerful morphing technique based on level set methods, that can be combined with a variety of scan conversion/model processing techniques. Bringing these techniques together creates a general morphing approach ...

    • Accurate and Fast Proximity Queries Between Polyhedra Using Convex Surface Decomposition 

      Ehmann, Stephen A.; Lin, Ming C. (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      The need to perform fast and accurate proximity queries arises frequently in physically-based modeling, simulation, animation, real-time interaction within a virtual environment, and game dynamics. The set of proximity ...

    • Adaptive Implicit Surface Polygonization Using Marching Triangles 

      Akkouche, Samir; Galin, Eric (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      This paper presents several improvements to the marching triangles algorithm for general implicit surfaces. The original method generates equilateral triangles of constant size almost everywhere on the surface. We present ...

    • An Adaptive Method for Indirect Illumination Using Light Vectors 

      Serpaggi, Xavier; Peroche, Bernard (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      In computer graphics, several phenomema need to be taken into account when it comes to the field of photo-realism. One of the most relevant is obviously the notion of global, and more precisely indirect, illumination. In ...

    • Adaptive Nonlinear Finite Elements for Deformable Body Simulation Using Dynamic Progressive Meshes 

      Wu, Xunlei; Downes, Michael S.; Goktekin, Tolga; Tendick, Frank (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      Realistic behavior of deformable objects is essential for many applications such as simulation for surgical training. Existing techniques of deformable modeling for real time simulation have either used approximate methods ...

    • Adaptive Representation of Specular Light 

      Briere, Normand; Poulin, Pierre (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      Caustics produce beautiful and intriguing illumination patterns. However, their complex behavior makes them difficult to simulate accurately in all but the simplest configurations. To capture their appearance, we present ...

    • Alain Fournier, 1943-2000 An Appreciation 

      Fiume, E. (Blackwell Publishers Ltd and the Eurographics Association., 2001)

    • Animation of Soap Bubble Dynamics, Cluster Formation and Collision 

      Durikovic, Roman (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      What is happening when a soap bubble floats on the air? How do bubbles coalesce to form beautiful three-dimensional clusters? The physical-based model and animation described herein provide the answers. This paper deals ...

    • Antialiasing of Environment Maps 

      Schilling, Andreas (Blackwell Publishers Ltd and the Eurographics Association., 2001)
      Environment maps, like texture maps or any other maps consisting of discretely stored data have to be properly filtered, if they are being resampled in the process of rendering an image. For environment maps, this is ...

    • Are Points the Better Graphics Primitives? 

      Gross, Markus (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      Since the early days of graphics the computer based representation of three-dimensional geometry has been one of the core research fields. Today, various sophisticated geometric modelling techniques including NURBS or ...

    • Artist-Directed Inverse-Kinematics Using Radial Basis Function Interpolation 

      Rose III, Charles F.; Sloan, Peter-Pike J.; Cohen, Michael F. (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      One of the most common tasks in computer animation is inverse-kinematics, or determining a joint configuration required to place a particular part of an articulated character at a particular location in global space. ...

    • Automatic Lighting Design using a Perceptual Quality Metric 

      Shacked, Ram; Lischinski, Dani (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      Lighting has a crucial impact on the appearance of 3D objects and on the ability of an image to communicate information about a 3D scene to a human observer. This paper presents a new automatic lighting design approach for ...

    • A Camera Engine for Computer Games: Managing the Trade-Off Between Constraint Satisfaction and Frame Coherence 

      Halper, Nicolas; Helbing, Ralf; Strothotte, Thomas (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      Many computer games treat the user in the "1st person" and bind the camera to his or her view. More sophistication in a game can be achieved by enabling the camera to leave the users' viewpoint. This, however, requires new ...

    • Coarse-to-fine surface simplification with geometric guarantees 

      Boissonnat, Jean-Daniel; Cazals, Frederic (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      Let PC be a 3D point cloud and ? be a positive value called tolerance. We aim at constructing a triangulated surface S based on a subset PCU of PC such that all the points in PCL=PC?PCU are at distance at most ? from a ...

    • Constrained Fairing for Meshes 

      Liu, Xinguo; Bao, Hujun; Heng, PhengAnn; Wong, TienTsin; Peng, Qunsheng (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      In this paper, we present a novel fairing algorithm for the removal of noise from uniform triangular meshes without shrinkage and serious distortion. The key feature of this algorithm is to keep all triangle centers invariant ...

    • Control of Feature-point-driven Facial Animation Using a Hypothetical Face 

      Su, Ming-Shing; Ko, Ming-Tat; Cheng, Kuo-Young (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      A new approach to the generation of a feature-point-driven facial animation is presented. In the proposed approach, a hypothetical face is used to control the animation of a face model. The hypothetical face is constructed ...

    • CP3: Robust, Output-sensitive Display of Convex Polyhedra in Scanline Mode 

      Barkan, Ella; Gordon, Dan (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      A new technique is developed for displaying disjoint convex polyhedra. The method has the following properties: It is output-sensitive, displays the objects in scanline mode, and it is naturally robust. There is no complex ...

    • Detection of Salient Curvature Features on Polygonal Surfaces 

      Watanabe, Kouki; Belyaev, Alexander G. (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      We develop an approach for stable detection of perceptually salient curvature features on surfaces approximated by dense triangle meshes. The approach explores an "area degenerating" effect of the focal surface near its ...

    • Displacement Mapping using Scan Conversion Hardware Architectures 

      Doggett, Michael; Kugler, Anders; Strasser, Wolfgang (Blackwell Publishers Ltd and the Eurographics Association., 2001)
      This paper presents a novel algorithm and architectures for perspective correct displacement of the surface geometry of a polygonal model using a displacement map. This new displaced surface geometry is passed onto a ...

    • Drawing for Illustration and Annotation in 3D 

      Bourguignon, David; Cani, Marie-Paule; Drettakis, George (Blackwell Publishers Ltd and the Eurographics Association, 2001)
      We present a system for sketching in 3D, which strives to preserve the degree of expression, imagination, and simplicity of use achieved by 2D drawing. Our system directly uses user-drawn strokes to infer the sketches ...