EG2003: Recent submissions

Now showing items 41-60 of 113

    • Improved Indirect Photon Mapping withWeighted Importance Sampling 

      Szirmay-Kalos, Laszlo; Szecsi, Laszl (Eurographics Association, 2003)
      This paper offers a novel approach to the indirect photon mapping method. The placement of photons acting as virtual light sources is regarded as a cheap sampling scheme, allowing for the reuse of a complete shooting path ...

    • Shadow Mapping Based on Dual Depth Layers 

      Weiskopf, Daniel; Ertl, Thomas (Eurographics Association, 2003)
      Shadow maps are a widely used means for the generation of shadows although they exhibit aliasing artifacts and problems of numerical precision. In this paper we extend the concept of a single shadow map by introducing dual ...

    • Estimating Positions and Radiances of a Small Number of Light Sources for Real-Time Image-Based Lighting 

      Madsen, Claus B.; Sorensen, Mads K. D.; Vittrup, Michael (Eurographics Association, 2003)
      Image-based lighting (IBL) of virtual objects has become a popular approach to blending virtual and real scenes. In IBL an omni-directional image of a scene is used as the illumination environment for rendering virtual ...

    • Parameter-driven freeform deformations 

      Song, Y.; Vergeest, J.S.M.; Saakes, D.P. (Eurographics Association, 2003)
      High-level parameters offer user an easy and intuitive tool to modify an existing model. In this paper, an approach of deforming freeform shapes using intrinsic parameters is proposed, where those parameters were not part ...

    • Generation of Radiosity Texture Atlas for Realistic Real-Time Rendering 

      Ray, Nicolas; Ulysse, Jean-Christophe; Cavin, Xavier; Levy, Bruno (Eurographics Association, 2003)
      Radiosity methods are a both physically correct and efficient way to compute the global illumination giving the visual atmosphere to a 3D scene. In this paper, we present a new approach to optimizing the visualization of ...

    • A Precise Approach Calibrated by Experimental Data to Make an Artificial Impulse 

      Iguchi, Toshiko; Kodama, Tetsuya; Noborio, Hiroshi (Eurographics Association, 2003)
      Baraffs and Mirtichs approaches are well known so as to generate force and impulsive force artificially at collision between rigid bodies. However, both cannot be unfortunately applied for a practical use such as complex ...

    • Multilevel modelling and rendering of architectural scenes 

      Kushal, Akash M.; Chanda, Gaurav; Shrivastava, Kanishka; Gupta, Mohit; Sanyal, Subhajit; Sriram, T. V. N.; Kalra, Prem; Banerjee, Subhashis (Eurographics Association, 2003)
      We present a novel approach for multilevel modelling and rendering of architectural scenes using a small set of photographs. Our approach is based on interactive probing of intuitive measures like lengths, widths and heights ...

    • The Virtual Painting Paintbox 

      Sobczyk, D.; Boyer, V.; Bourdin, J-J. (Eurographics Association, 2003)
      We present VPUP8 a new kind of paint boxes. It includes a model for the simulation of physic dynamics involved in the painting process and a human-machine interface to manage the position and the moves of the user. Usually ...

    • Particle-based Collision Detection 

      Senin, Mikhail; Nikita, Kojekine; Savchenko, Vladimir; Hagiwara, Ichiro (Eurographics Association, 2003)
      In the paper we present a novel algorithm for collision detection between complex geometric objects represented by polygonal models and undergoing rigid motions and deformations. Most algorithms described in the literature ...

    • Motion Planning and Visibility Problems using the Polar Diagram 

      Grima, C.I.; Márquez, A.; Ortega, L. (Eurographics Association, 2003)
      Motion planning and visibility problems are some of the most important topics studied in Computer Graphics, Computational Geometry and Robotics. There exits several and important results to these problems. We propose a new ...

    • Extending the Immediate Buckling Model to Triangular Meshes for Simulating Complex Clothes 

      Choi, Kwang-Jin; Ko, Hyeong-Seok (Eurographics Association, 2003)
      The immediate buckling model is an essential element for simulating realistic cloth animations without introducing buckling instability. The original model is restricted to structured regular quad meshes, by which its use ...

    • Interactive Dynamic Environments Using Image-Based Modeling and Rendering (393.4 kB) Timothy A. Davis, Stephen P. Ficklin An approach to construct augmented CAD models using acquired digital images 

      Bianconi, Francesco; Conti, Paolo (Eurographics Association, 2003)
      An approach for integrating CAD models and information associated with digital images is discussed in this paper. The main objective of the proposed framework is the construction of augmented CAD models using digital images ...

    • Precise Deformation of Rheology MSD Model Calibrated by Randomized Algorithm 

      Noborio, Hiroshi; Nogami, Ryo; Enoki, Ryo (Eurographics Association, 2003)
      In this paper, we propose and compare three kinds of mass-spring-damper (MSD) models of rheology object, and experimentally select the best model concerning to shape deformation and volume accuracy. The MSD model requires ...

    • Efficient Sampling of Textured Scenes in Vertex Tracing 

      Ullmann, Thomas; Preidel, Thomas; Bruderlin, Beat (Eurographics Association, 2003)
      We present vertex tracing, an adaptive progressive ray tracing approach for efficient sampling of the radiance function, based on refinement in object space and subsequent reconstruction, using standard 3D graphics accelerator ...

    • Uncertainty Visualization Methods in Isosurface Rendering 

      Rhodes, Philip J.; Laramee, Robert S.; Bergeron, R. Daniel; Sparr, Ted M. (Eurographics Association, 2003)
      We describe two techniques for rendering isosurfaces in multiresolution volume data such that the uncertainty (error) in the data is shown in the resulting visualization. In general the visualization of uncertainty in data ...

    • Implicit Surface Reconstruction and uniform Sampling by Striped Marching Triangles 

      Leborán, Víctor; Pardo, Xose M. (Eurographics Association, 2003)
      The synthesis of computer models from real objects is a usual procedure in medical image processing and reverse engineering. In both cases, the main issues are to reach a topologically consistent and geometrically precise ...

    • Inelastic Scattering and Participating Media.Application to the ocean 

      Cerezo, Eva; Seron, Francisco J. (Eurographics Association, 2003)
      A system, developed to treat general participating media, is generalized to make it capable of considering volumetric inelastic processes such as fluorescence. The system is based on the discrete ordinates method, and can ...

    • High quality images from 2.5D video 

      Berretty, Robert-Paul; Ernst, Fabian (Eurographics Association, 2003)
      Given a 2D video stream with an accompanying depth channel, we render high quality images from viewpoints close to the original one. This is for instance required to generate a 3D impression on stereoscopic or multiview ...

    • Reconstruction of Animatable Personalized 3D Faces by Adaptation-based Modeling 

      Zhang, Yu; Sim, Terence; Tan, Chew Lim (Eurographics Association, 2003)
      We present an efficient method for the construction of an animatable 3D facial model of a specific person with minimal user interaction. The method is based on adapting an anatomy-based prototype facial model that is ...

    • VelvetPath - Layout Design System with Sketch and Paint Manipulations 

      Tobita, Hiroaki (Eurographics Association, 2003)
      We describe the VelvetPath system, a system that allows users to design layouts for visualized information by using sketch and paint manipulations. Many systems enable users to visually search and browse through information ...