Now showing items 721-740 of 2886

    • Point in Solid Tests for Triangle Meshes. Comparative Study 

      Ogayar, Carlos J.; Segura, Rafael J.; Feito, Francisco R. (Eurographics Association, 2003)
      This document presents a comparative study of several point inclusion tests for triangle meshes. We also discuss some issues about the usefulness of each method depending on the situation, taking into account memory and ...
    • Anisotropic Participating Media at Near Interactive Rates 

      Jimenez, Juan-Roberto; Pueyo, Xavier (Eurographics Association, 2003)
      This article presents an algorithm for the realistic simulation, at near interactive rates, of globally illuminated scenes including participating media, isotropic and anisotropic. The proposed algorithm is divided in three ...
    • Pedagogic discrete visualization of electromagnetic waves 

      Mora, F.; Ruillet, G.; Andres, E.; Vauzelle, R. (Eurographics Association, 2003)
      A dynamic electromagnetic wave propagation visualization tool is presented in this paper. It can simulate wave reflection and diffraction in 2D. It allows to visualize the electric field magnitude. The original approach ...
    • Obscurances for ray-tracing 

      Mendez, A.; Sbert, M.; Neumann, L. (Eurographics Association, 2003)
      We present a powerful method to create realistic-looking pictures of scenes with objects that have diffuse and non-diffuse properties. The method recreates the obscurances technique, introduced some years ago, with a new ...
    • Image-based Extraction of Material Reflectance Properties of a 3D Rigid Object 

      Erdem, M. Erkut; Erdem, I. Aykut; Atalay, Volkan (Eurographics Association, 2003)
      In this study, we concentrate on the extraction of reflectance properties of a 3D rigid object from its 2D images and the other aim of this work is rendering the object in real-time with photorealistic quality in varying ...
    • VR Game Interfaces for Interaction onto 3D Display 

      Choi, Jeong-Dan; Jang, Byung-Tae; Hwang, Chi-Jeong (Eurographics Association, 2003)
      This paper describes the VR game interfaces for interaction onto 3D display. The challenge we are interested in is how to build and use a low cost 3D display that satisfies semi-immersive requirements and how to coordinate ...
    • Real time positioning system based on active stereo and facial features identification 

      Frosio, Iuri; Lanzarotti, Raffaella; Campadelli, Paola; Ferrigno, Giancarlo; Borghese, N. Alberto (Eurographics Association, 2003)
      We propose a new system for patient’s head positioning for radiology and radiotherapy. The system is constituted of two low-cost digital cameras and a digital projector. As a first step a bright pattern is projected onto ...
    • Interactive demo: OpenGLfly, version Euskadi 

      Gómez de Segura, José Daniel; Fernández, Borja; Peral, Rosa; López, Susana; Ibáñez, Eduardo (Eurographics Association, 2003)
      This paper describes the demo associated to one of our projects, which is currently under development. The version presented can be considered as a large terrain simulation over the Basque Country area (North of Spain), ...
    • Resampling structured grids into regular ones 

      Dimitrov, Leonid I.; Kolcun, Aleksej; Sramek, Milos (Eurographics Association, 2003)
      Structured grids and some of their applications in natural sciences are discussed. The problem of their visualization and quantitative evaluation is considered and possible ways for its solution sketched. Resampling a ...
    • Certosa virtual museum: a dynamic multilevel desktop VR application 

      Calori, L.; Diamanti, T.; Guidazzoli, A.; Liguori, M. C.; Mauri, M. A.; Valentini, L. (Eurographics Association, 2003)
      Starting from the exigencies of restoration, safeguard and promotion set by Bologna City Council for its Museum of the Certosa Cemetery, a multilevel application has been developed. Its main features are dynamic generation ...
    • GreenArt: A Tool for Non-Photorealistic Rendering of Plants and Trees 

      Campos, C.; Quirós, R.; Huerta, J.; Camahort, E.; Lluch, J.; Vivo, R. (Eurographics Association, 2003)
      Plant and tree rendering is critical to many computer graphics applications, like interactive walkthroughs, architectural presentations, entertaintment and computer games. Current research focuses on realistic modeling and ...
    • Parametric Foveation for Progressive Texture and Model Transmission 

      Cheng, Irene; Basu, Anup; Pan, Yixin (Eurographics Association, 2003)
      Spatially varying sensing (foveation) has been used in many different areas of Computer Vision, such as image compression and video teleconferencing and in perceptually driven Level of Detail (LOD) representations in ...
    • Pen and Ink Pictures from Gray-Scale Photographs 

      Arroyo, G.; Martín, D. (Eurographics Association, 2003)
      A new method for producing pen and ink pictures from gray-scale photographs is introduced in this article. It is based on path-finding and reconstruction of strokes. First we apply filters to extract contours from photographs ...
    • Combining 3D Scans and Motion Capture for Realistic Facial Animation 

      Breidt, Martin; Wallraven, Christian; Cunningham, Douglas W.; Buelthoff, Heinrich H. (Eurographics Association, 2003)
      We present ongoing work on the development of new methods for highly realistic facial animation. One of the main contributions is the use of real-world, high-precision data for both the timing of the animation and the ...
    • Multi-resolution modelling of terrains by using non restricted quadtree triangulation 

      Aguilera, A.; Torres, J. C.; Feito, F. (Eurographics Association, 2003)
      The interactive visualization of terrains requires the processing of a high amount of data in real time, usually it is not possible to work with all of them on main in memory. In this work we present, a method which solves ...
    • Open Issues in Photo-realistic Rendering 

      Purgathofer, Werner (Eurographics Association, 2003)
      For more than two decades Computer graphics researchers have tried to achieve photo-realism in their images as reliable as possible, mainly by simulating the physical laws of light and adding one effect after the other. ...
    • Freeform Shape Representations for Efficient Geometry Processing 

      Kobbelt, Leif (Eurographics Association, 2003)
      The most important concepts for the handling and storage of freeform shapes in geometry processing applications are parametric representations and volumetric representations. Both have their specific advantages and drawbacks. ...
    • Volumetric Filtering, Modeling and Visualization for Nano-Medicine 

      Bajaj, Chandrajit (Eurographics Association, 2015-11-12)
      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 ...
    • Industrial and Project Presentations 

      Lozano, Felipe A.; Serón, Francisco (Eurographics Association, 2003)
      This volume contains the Industrial and Project Presentations for the 24th annual Conference of the European Association for Computer Graphics, EUROGRAPHICS´03, held in Granada, Spain, between the 1st and 6th of September 2003.
    • A Refereed Server for Educational CG Content 

      Figueiredo, Frederico C.; Eber, Dena E.; Jorge, Joaquim A. (Eurographics Association, 2003)
      Computer graphics has evolved considerably over the past few decades. As computer science, digital arts, and other areas of study that use computer graphics continue to evolve and gain new substance, educators have come ...