Browsing Short Presentations by Issue Date

Now showing items 1-20 of 44

    • Morphing Rational B-spline Curves and Surfaces Using Mass Distributions 

      Ju, Tao; Goldman, Ron (Eurographics Association, 2003)
      A rational B-spline curve or surface is a collection of points associated with a mass (weight) distribution. These mass distributions can be used to exert local control over the morph between two rational B-spline curves ...

    • 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 ...

    • 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 ...

    • Parallel Visibility Test and Occlusion Culling in Avango Virtual Environment Framework 

      Klimenko, Stanislav; Nikitina, Lialia; Nikitin, Igor (Eurographics Association, 2003)
      Real-time visibility test is an attractive feature for Virtual Environment (VE) applications where large datasets should be interactively explored. In such scenes most of the objects are usually occluded by other ones, and ...

    • Trans-Polygon Stroke Method for Frame Coherent Pastel Images 

      Murakami, Kyoko; Tsuruno, Reiji (Eurographics Association, 2003)
      We propose Trans-Polygon Stroke Method (TPSM) for creating pastel-like animation that keeps frame-to-frame coherence. There are several variable factors in hand-drawn pastel such as paper roughness and pigments. When these ...

    • A Framework for Video-based and Hardware-Accelerated Remote 3D-Visualization 

      Goetz, Frank; Domik, Gitta (Eurographics Association, 2003)
      This paper presents a framework for video-based and hardware-accelerated remote 3d-visualization that produces and delivers high quality video streams at an accurate frame rate. The framework is based on the portable ...

    • 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 ...

    • Continuous Local Parameterization of Polygons 

      Maillot, Jerome (Eurographics Association, 2003)
      Texture mapping has now become a standard technique for adding visual details to 3d models. Nevertheless, intuitive mapping tools have made little progress in the past decade, compared to other computer graphics areas: ...

    • ActiveInk 

      Tobita, Hiroaki; Rekimoto, Jun (Eurographics Association, 2003)
      The ActiveInk system integrates the advantages of real world painting techniques with computer graphics (CG) effects such as natural phenomenon animations (e.g., water, fire, snow, and clouds), attributes (e.g., rubber, ...

    • Occlusion Culling for Image-Based Rendering withWarping 

      Soner, I. Sen; Atalay, Volkan (Eurographics Association, 2003)
      The basic idea of the proposed algorithm is to reduce the number of depth pixels in Layer Depth Images (LDI) by culling the occluded ones before warping. The method combines the octree spatial subdivision concept with LDI ...

    • Goniometric Diagram Mapping for Hemisphere 

      Havran, Vlastimil; Dmitriev, Kirill; Seidel, Hans-Peter (Eurographics Association, 2003)
      Describing the light intensity over the hemisphere using a goniometric diagram is a common practice in the lighting industry and is prescribed for instance by IESNA (Illuminating Engineering Society of North America) ...

    • 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 ...

    • 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 ...

    • 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 ...

    • Information Visualization using Transparent Shape Impostors 

      Seipel, Stefan (Eurographics Association, 2003)
      Transparency is a graphical effect used in visualizations to present co-located graphical glyphs. Accomplishing a visually convincing transparency effect requires complex calculations of light absorption and refraction in ...

    • 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 ...

    • Automatic High Level Avatar Guidance Based on Affordance of Movement 

      Michael, Despina; Chrysanthou, Yiorgos (Eurographics Association, 2003)
      As virtual cities become ever more common and more extensive, the need to populate them with virtual pedestrians grows. One of the problems to be resolved for the virtual population is the behaviour simulation. Currently ...

    • 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 ...

    • Real-Time Simulation of Flexible Materials in Avango Virtual Environment Framework 

      Klimenko, Stanislav; Nikitina, Lialia; Nikitin, Igor (Eurographics Association, 2003)
      his paper describes a system for real-time simulation of linear elastic deformations of volumetric objects in Virtual Environments, implemented in Avango VE Framework 1. The approach makes use of the methods of Finite and ...