Now showing items 27-46 of 46

    • Local Physical Models for Interactive Character Animation 

      Oore, Sageev; Terzopoulos, Demetri; Hinton, Geoffrey (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      Our goal is to design and build a tool for the creation of expressive character animation. Virtual puppetry, also known as performance animation, is a technique in which the user interactively controls a character's motion. ...
    • Metamorphosis of Polyhedral Surfaces using Decomposition 

      Shlafman, Shymon; Tal, Ayellet; Katz, Sagi (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      This paper describes an algorithm for morphing polyhedral surfaces based on their decompositions into patches. The given surfaces need neither be genus-zero nor two-manifolds. We present a new algorithm for decomposing ...
    • Modeling Surperspective Projection of Landscapes for Geographical Guide-Map Generation 

      Takahashi, Shigeo; Ohta, Naoya; Nakamura, Hiroko; Takeshima, Yuriko; Fujishiro, Issei (Blackwell Science Ltd and the Eurographics Association, 2002)
      It is still challenging to generate hand-drawn pictures because they differ from ordinary photographs in that they are often drawn as seen from multiple viewpoints. This paper presents a new approach for modeling such ...
    • Multi-Resolution Rendering of Complex Animated Scenes 

      Wand, M.; Strasser, W. (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      We present a novel multi-resolution point sample rendering algorithm for keyframe animations. The algorithm accepts triangle meshes of arbitrary topology as input which are animated by specifying different sets of vertices ...
    • Object Space EWA Surface Splatting: A Hardware Accelerated Approach to High Quality Point Rendering 

      Ren, Liu; Pfister, Hanspeter; Zwicker, Matthias (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      Elliptical weighted average (EWA) surface splatting is a technique for high quality rendering of point-sampled 3D objects. EWA surface splatting renders water-tight surfaces of complex point models with high quality, ...
    • Projective Texture Mapping with Full Panorama 

      Kim, Dongho; Hahn, James K. (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      Projective texture mapping is used to project a texture map onto scene geometry. It has been used in many applications, since it eliminates the assignment of fixed texture coordinates and provides a good method of representing ...
    • Real-time Animation of Dressed Virtual Humans 

      Cordier, Frederic; Magnenat-Thalmann, Nadia (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      In this paper, we describe a method for cloth animation in real-time. The algorithm works in a hybrid manner exploiting the merits of both the physical-based and geometric deformations. It makes use of predetermined ...
    • Representation of Pseudo Inter-reflection and Transparency by Considering Characteristics of Human Vision 

      Matsuoka, H.; Takeuchi, T.; Kitazawa, H.; Onozawa, A. (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      We have succeeded in developing a quick and fully automated system that can generate photo-realistic 3D CG data based on a real object. A major factor in this success comes from our findings through psychophysical experiments ...
    • Sculpturing on Discrete Displacement Fields 

      Ayasse, Jorg; Muller, Heinrich (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      A displacement field can be defined by a vector field and a height field on an orientable surfaceS, describing the direction and the amount of displacement to be applied toSin order to get a surface represented by the ...
    • A Simple and Robust Mutation Strategy for the Metropolis Light Transport Algorithm 

      Kelemen, Csaba; Szirmay-Kalos, Laszlo; Antal, Gyorgy; Csonka, Ferenc (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      This paper presents a new mutation strategy for the Metropolis light transport algorithm, which works in the unit cube of pseudo-random numbers instead of mutating in the path space. This transformation makes the integrand ...
    • Slow Growing Subdivision (SGS) in Any Dimension: Towards Removing the Curse of Dimensionality 

      Pascucci, V. (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      In recent years subdivision methods have been one of the most successful techniques applied to the multi-resolution representation and visualization of surface meshes. Extension these techniques to the volumetric case would ...
    • A Solid Model Based Virtual Hairy Brush 

      Xu, Songhua; Tang, Min; Lau, Francis; Pan, Yunhe (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      We present the detailed modeling of the hairy brush used typically in Chinese calligraphy. The complex model, which includes also a model for the ink and the paper, covers the various stages of the brush going through a ...
    • Space-Optimized Texture Maps 

      Balmelli, Laurent; Taubin, Gabriel; Bernardini, Fausto (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      Texture mapping is a common operation to increase the realism of three-dimensional meshes at low cost. We propose a new texture optimization algorithm based on the reduction of the physical space allotted to the texture ...
    • STRANDS: Interactive Simulation of Thin Solids using Cosserat Models 

      Pai, Dinesh K. (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      Strandsare thin elastic solids that are visually well approximated as smooth curves, and yet possess essential physical behaviors characteristic of solid objects such as twisting. Common examples in computer graphics ...
    • Stylizing Silhouettes at Interactive Rates: From Silhouette Edges to Silhouette Strokes 

      Isenberg, Tobias; Halper, Nick; Strothotte, Thomas (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      A way to create effective stylized line drawings is to draw strokes that start and stop at visible portions along the silhouette of an object to be portrayed. In computer graphics to date, algorithms to extract silhouette ...
    • Surface reconstruction based on a dynamical system? 

      Giesen, Joachim; John, Matthias (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      We present an efficient algorithm that computes a manifold triangular mesh from a set of unorganized sample points in. The algorithm builds on the observation made by several researchers that the Gabriel graph of the sample ...
    • Texture Particles 

      Dischler, J.-M.; Maritaud, K.; Levy, B.; Ghazanfarpour, D. (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      This paper presents an analytical extension of texture synthesis techniques based on the distribution of elementary texture components. Our approach is similar to the bombing, cellular, macrostructured and lapped textures ...
    • Transparency in Interactive Technical Illustrations 

      Diepstraten, J.; Weiskopf, D.; Ertl, T. (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      This paper describes how technical illustrations containing opaque and non-opaque objects can be automatically generated. Traditional methods to show transparency in manual drawings are evaluated to extract a small and ...
    • Using Perceptual Texture Masking for Efficient Image Synthesis 

      Walter, Bruce; Pattanaik, Sumanta N.; Greenberg, Donald P. (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      Texture mapping has become indispensable in image synthesis as an inexpensive source of rich visual detail. Less obvious, but just as useful, is its ability to mask image errors due to inaccuracies in geometry or lighting. ...
    • Virtual Visual Servoing: a framework for real-time augmented reality 

      Marchand, Eric; Chaumette, Francois (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      This paper presents a framework to achieve real-time augmented reality applications. We propose a framework based on the visual servoing approach well known in robotics. We consider pose or viewpoint computation as a similar ...