Now showing items 24-39 of 39

    • Pandora: An Experiment in Distributed Multimedia 

      King, Tony (Blackwell Science Ltd and the Eurographics Association, 1992)
      An experimental workstation is described which supports digital video and audio in a distributed environment, and which presents this functionality to the user through the medium of a video-extended implementation of the ...
    • The Parametric Differential Method: An Alternative to the Calculation of Form Factors 

      Baranoski, Gladimir V. Guimaraes (Blackwell Science Ltd and the Eurographics Association, 1992)
      The parametric differential method calculates the form factors without using approximations by polygons. Because of this it contributes to the improvement of the realism of the images synthesised through the radiosity ...
    • Radiosity in Flatland 

      Heckhert, Paul S. (Blackwell Science Ltd and the Eurographics Association, 1992)
      The radiosity method for the simulation of interreflection of light between diffuse surfaces is such a common image synthesis technique that its derivation is worthy of study. We here examine the radiosity method in a two ...
    • Realistic Generation and Real Time Animation of Images of the Human Colon 

      Haritsis, Angelo; Gillies, Duncan; Williams, Christopher (Blackwell Science Ltd and the Eurographics Association, 1992)
      A simulator has been built to teach doctors the skill of handling a flexible endoscope for gastrointestinal investigations. Trainees use a dummy endoscope in which the control actions are transduced into voltages and sensed ...
    • Reference, Synthesis and Constraint Satisfaction* 

      Pineda, Luis A. (Blackwell Science Ltd and the Eurographics Association, 1992)
      In this paper we discuss two kinds of constraint satisfaction problems that arise in the context of geometric modelling, In particular in the modification of 2-D wire-frame diagrams that are subject to an arbitrary number ...
    • Rendering NURB Regions For 2D Animation 

      Willis, Philip; Oddy, Robert (Blackwell Science Ltd and the Eurographics Association, 1992)
      We describe an accurate method of rendering by scan-conversion of closed regions bounded by NURBs, with particular comments on its application to computer-based 2D animation. It is shown that the method is fast, analytically ...
    • A Run-Length Slice Line Drawing Algorithm without Division Operations 

      Fung, Khun Yee; Nicholl, Tina M.; Dewdney, A. K. (Blackwell Science Ltd and the Eurographics Association, 1992)
    • A Simple Description of Complex Curves 

      Bouras, A.; Shariat, B.; Vandorpe, D. (Blackwell Science Ltd and the Eurographics Association, 1992)
      In this paper, we propose a method of complex curves description, based on the use of standard primitives (curve arcs), inscribed in including boxes. This method simplifies the creation steps (curves are not defined with ...
    • Simulation of Facial Muscle Actions Based on Rational Free Form Deformations 

      Kalra, Prem; Mangili, Angelo; Thalmann, Nadia Magnenat; Thalmann, Daniel (Blackwell Science Ltd and the Eurographics Association, 1992)
      This paper describes interactive facilities for simulating abstract muscle actions using Rational Free Form Deformations (RFFD). The particular muscle action is simulated as the displacement of the control points of the ...
    • Stochastic Motion-Motion Under the Influence of Wind 

      Shinya, Mikio; Fournier, Alain (Blackwell Science Ltd and the Eurographics Association, 1992)
      Stochastic approaches are very effective for modelling natural phenomena. This paper presents a motion model based on a stochastic process as well as physics, and proposes motion synthesis techniques for stochastic ...
    • SX/Tools - An Open Design Environment for Adaptable Multimedia User Interfaces 

      Kuhme, Thomas; Schneider-Hufschmidt, Matthias (Blackwell Science Ltd and the Eurographics Association, 1992)
      In this paper a brief review of user interface management systems (UIMSs) and their advantages is given. Shortcomings of current UIMSs and open requirements imposed by industrial application areas are outlined. Among the ...
    • Template-Based Volume Viewing 

      Yagel, Roni; Kaufman, Arie (Blackwell Science Ltd and the Eurographics Association, 1992)
      We present an efficient three-phase algorithm for volume viewing that is based on exploiting coherency between rays in parallel projection. The algorithm starts by building a ray-template and determining a special plane ...
    • Two-manifold cell-decomposition of r-sets. 

      Falcidieno, Bianca; Ratto, Ornella (Blackwell Science Ltd and the Eurographics Association, 1992)
      This paper discusses the relationships studied between manifold solids and r-sets by defining an r-set as a decomposition in two-manifold cells. This decomposition is represented as a graph (Two-manifold Cell Decomposition ...
    • A Unified Approach for Physical and Geometric Modeling for Graphics and Animation 

      Essa, Irfan A.; Sclaroff, Stan; Pentland, Alex (Blackwell Science Ltd and the Eurographics Association, 1992)
      We present a unified approach for geometric and physical modeling using implicit functions, for application to graphics and animation. This method extends previously proposed techniques, and allows the standard finite ...
    • Visual Composition and Multimedia 

      de Mey, Vicki; Breiteneder, Christian; Dami, Laurent; Gibbs, Simon and Tsichritzis, Dennis (Blackwell Science Ltd and the Eurographics Association, 1992)
      Multimedia applications can be seen as sets of autonomous parts, independent yet capable of working together. This assumption allows for the construction of multimedia applications in a"connectionist" fashion. In this paper ...
    • The Visualization Input Pipeline - Enabling Semantic Interaction in Scientific Visualization 

      Felger, W.; Schroder, F. (Blackwell Science Ltd and the Eurographics Association, 1992)
      Scientific Visualization systems are primarily output-oriented, Users can specify and change parameters that are controlling the visualization process, which will result in different data representations or images respectively. ...