Browsing Issue 3 by Title

Now showing items 35-49 of 49

    • Ray Differentials and Multiresolution Geometry Caching for Distribution Ray Tracing in Complex Scenes 

      Christensen, Per H.; Laur, David M.; Fong, Julian; Wooten, Wayne L.; Batali, Dana (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      When rendering only directly visible objects, ray tracing a few levels of specular reflection from large, low-curvaturesurfaces, and ray tracing shadows from point-like light sources, the accessed geometry is coherentand ...

    • Real-Time Caustics 

      Wand, M.; Strasser, W. (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      We present a new algorithm to render caustics. The algorithm discretizes the specular surfaces into samplepoints. Each of the sample points is treated as a pinhole camera that projects an image of the incoming lightonto ...

    • Realistic Animation of Fluid with Splash and Foam 

      Takahashi, Tsunemi; Fujii, Hiroko; Kunimatsu, Atsushi; Hiwada, Kazuhiro; Saito, Takahiro and Tanaka, Ken and Ueki, Heihachi (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      In this paper we describe a method for modeling and rendering dynamic behavior of fluids withsplashes and foam. A particle system is built into a fluid simulation system to represent an ocean wavecresting and spraying over ...

    • Reanimating Faces in Images and Video 

      Blanz, V.; Basso, C.; Poggio, T.; Vetter, T. (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      This paper presents a method for photo-realistic animation that can be applied to any face shown in a single imageor a video. The technique does not require example data of the person's mouth movements, and the image to ...

    • Rendering and Affect 

      Duke, D.J.; Barnard, P.J.; Halper, N.; Mellin, M. (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      Previous studies at the intersection between rendering and psychology have concentrated on issues such as realismand acuity. Although such results have been useful in informing development of realistic rendering ...

    • A Scalable Approach to Interactive Global Illumination 

      Benthin, Carsten; Wald, Ingo; Slusallek, Philipp (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      The addition of global illumination can dramatically increase the realism achievable when rendering virtual environments.In particular with interactive applications we expect the environment to reflect changes in the ...

    • Shadow Volumes on Programmable Graphics Hardware 

      Brabec, Stefan; Seidel, Hans-Peter (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      One of the best choices for fast, high quality shadows is the shadow volume algorithm. However, for real timeapplications the extraction of silhouette edges can significantly burden the CPU, especially with highly ...

    • ShieldTester: Cell-to-Cell Visibility Test for Surface Occluders 

      Navazo, I.; Rossignac, J.; Jou, J.; Shariff, R. (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      We present a novel Cell-To-Cell Visibility (C2CV) algorithm, which given two polyhedra, AandBand a connectedand oriented manifold triangle mesh, S offers a simple, fast and conservative test for detecting when A and B ...

    • Solving Geometric Optimization Problems using Graphics Hardware 

      Denny, Markus (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      We show how to use graphics hardware for tackling optimization problems arising in the field of computationalgeometry. We exemplarily discuss three problems, where combinatorial algorithms are inefficient or hard to ...

    • The Stringed Haptic Workbench: a New Haptic Workbench Solution 

      Tarrin, N.; Coquillart, S.; Hasegawa, S.; Bouguila, L.; Sato, M. (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      The workbench is an interesting semi-immersive configuration for interactive tasks. However, haptic feedback, i.e.force and tactile feedback, is one important cue which is missing. To the authors' knowledge, the sole ...

    • Sub-Voxel Topology Control for Level-Set Surfaces 

      Bischoff, Stephan; Kobbelt, Leif (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      Active contour models are an efficient, accurate, and robust tool for the segmentation of 2D and 3D image data.In particular, geometric deformable models (GDM) that represent an active contour as the level set of an ...

    • Table of Contents CGF 22-3 

      Fellner, Dieter W.; Brunet, Pere (Blackwell Publishers, Inc and the Eurographics Association, 2003)
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    • Visyllable Based Speech Animation 

      Kshirsagar, Sumedha; Magnenat-Thalmann, Nadia (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      Visemes are visual counterpart of phonemes. Traditionally, the speech animation of 3D synthetic faces involvesextraction of visemes from input speech followed by the application of co-articulation rules to generate ...

    • Volumetric cell-and-portal generation 

      Haumont, D.; Debeir, O.; Sillion, F. (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      We present an algorithm to generate a cell-and-portal decomposition of general indoor scenes. The method is an adaptation of the 3D watershed transform, computed on a distance-to-geometry sampled field. The watershed is ...

    • Volumetric Filtering, Modeling and Visualization for Nano-Medicine 

      Bajaj, Chandrajit (Blackwell Publishers, Inc and the Eurographics Association, 2003)
      The 3D structures of individual proteins or small complexes, such as most of the Protein Data Bank entries, are still unable to yield the 'full picture' of a functional biological complex. The study of large macromolecular ...