Now showing items 1-20 of 113

    • 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. ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Polygon-Polygon Collision Detection in 2D 

      Jiménez Delgado, Juan J.; Segura Sánchez, Rafael J.; Feito Higueruela, Francisco R. (Eurographics Association, 2003)
      Collision detection between moving objects is an open question which raises major problems concerning its algorithmic complexity. In this paper we present a polygon collision detection algorithm which uses polygon decomposition ...
    • 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 ...
    • 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.
    • Learning by doing: A Case for Constructivist 3D Virtual Learning Environment 

      Hu, Weihua; Zhu, Jiejie; Pan, Zhigeng; Li, Yanfeng; Ju, Cunhui (Eurographics Association, 2003)
      This paper puts forward an idea that 3D virtual learning environment (3DVLE ) is an effective way to improve the feasibility of implementing constructivist learning theory in distance education. In this paper, we first ...
    • Drag and Drop Scripting: How To Do Hypermedia Right 

      Hanisch, F.; Straßer, W. (Eurographics Association, 2003)
      The rising interest in repositories for educational material consolidates efforts of the diversied educational community. Developers, teachers, and designers have recognized the need for collaboration in order to create ...
    • A Virtual Laboratory for Computer Graphics Education 

      Pettersson, L. W.; Jensen, N.; Seipel, S. (Eurographics Association, 2003)
      We specify a 3D network-distributed virtual environment (DVE) where students learn computer graphics programming. The client/server software consists of a programming environment, the 3D DVE that is used to develop dynamic ...
    • Interactive Learning of Computer Graphics Algorithms 

      Pan, Zhigeng; Lun, Hung Pak; Gao, Rong (Eurographics Association, 2003)
      Nowadays, computer graphics course is usually taught with traditional teaching methodologies and tools, which has its own limitations. In this paper, we present an online interactive computer graphics tutorial. The practical ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...