Now showing items 1-20 of 39

    • Reasoning About Gestural Interaction 

      Duke, D.J. (Blackwell Science Ltd and the Eurographics Association, 1995)
      Many of the reported developments in the design of virtual spaces or visualisation systems are based on improvements in technology, either physical devices or algorithms for achieving realistic renderings within real-time ...
    • Syntax Channelling and Other Issues affecting Innovation in the Graphical User Interface 

      King, Mike (Blackwell Science Ltd and the Eurographics Association, 1995)
      Does the modern commercial Graphical User Interface constrain the developer of graphics applications into certain interaction styles? This paper looks at the Microsoft Windows environment as an example, with particular ...
    • A Graph-Based Approach to Surface Reconstruction 

      Mencl, Robert (Blackwell Science Ltd and the Eurographics Association, 1995)
      A new approach to the reconstruction of a surface from an unorganized set of points in space is presented. The point set may for example be obtained with a laser scanner or a manual digitizing tool, and is the only source ...
    • A Direct Manipulation Interface for 3D Computer Animation 

      Snibbe, Scott Sona (Blackwell Science Ltd and the Eurographics Association, 1995)
      We present a new set of interface techniques for visualizing and editing animation directly in a single three-dimensional scene. Motion is edited using direct-manipulation tools which satisfy high-level goals such as"reach ...
    • Generating a Texture Map from Object-Surface Texture Data 

      Maruya, Makoto (Blackwell Science Ltd and the Eurographics Association, 1995)
      A number of 3D digitizing methods, including stereopsis, are capable of measuring not only an object s shape but also its surface texture. Measured shape data can be expressed as a polyhedron whose faces are triangular, ...
    • A rational model of the surface swept by a curve* 

      Johnstone, John K.; Williams, James P. (Blackwell Science Ltd and the Eurographics Association, 1995)
      This paper shows how to construct a rational Bezier model of a swept surface that interpolates N frames (i.e., N position/orientation pairs) of a fixed rational space curve c(s) and maintains the shape of the curve at all ...
    • Spherical Triangular B-splines with Application to Data Fitting 

      Pfeifle, Ron; Seidel, Hans-Peter (Blackwell Science Ltd and the Eurographics Association, 1995)
      Triangular B-splines surfaces are a tool for representing arbitrary piecewise polynomial surfaces over planar triangulations, while automatically maintaining continuity properties across patch boundaries. Recently, Alfeld ...
    • Thoughtful Drawings: A Computational Model of the Cognitive Nature of Children s Drawing 

      Burton, Ed (Blackwell Science Ltd and the Eurographics Association, 1995)
      An interpretation of children s drawing is presented that is based on active perception of the world and the construction of an equivalent self contained two-dimensional world. This model is implemented in a computer program ...
    • A Quick Rendering Method Using Basis Functions for Interactive Lighting Design 

      Dobashi, Yoshinori; Kaneda, Kazufumi; Nakatani, Hideki; Yamashita, Hideo; Nishita, Tomoyuki (Blackwell Science Ltd and the Eurographics Association, 1995)
      When designing interior lighting effects, it is desirable to compare a variety of lighting designs involving different lighting devices and directions of light. It is, however, time-consuming to generate images with many ...
    • Fast Wavelet Based Volume Rendering by Accumulation of Transparent Texture Maps 

      Lippert, L.; Gross, M. H. (Blackwell Science Ltd and the Eurographics Association, 1995)
      In the following paper, a new method for fast and accurate volume intensity and color integration is elaborated, which employs wavelet decompositions and texture mapping. At this point, it comprises and unifies the advantages ...
    • Filtering, Clustering and Hierarchy Construction: a New Solution for Ray-Tracing Complex Scenes 

      Cazals, Frederic; Drettakis, George; Puech, Claude (Blackwell Science Ltd and the Eurographics Association, 1995)
      Data structures that handle very complex scenes (hundreds of thousands of objects) have in the past either been laboriously built by hand, or have required the determination of unintuitive parameter values by the user. It ...
    • Three Architectures for Volume Rendering 

      Hesser, Jurgen; Manner, Reinhard; Knittel, Gunter; Strasser, Wolfgang; Pfister, Hanspeter; Kaufman, Arie (Blackwell Science Ltd and the Eurographics Association, 1995)
      Volume rendering is a key technique in scientific visualization that lends itself to significant exploitable parallelism. The high computational demands of real-time volume rendering and continued technological advances ...
    • Distributed Augmented Reality for Collaborative Design Applications 

      Ahlers, Klaus H.; Kramer, Andre; Breen, David E.; Chevalier, Pierre-Yves; Crampton, Chris; Rose, Eric; Tuceryan, Mihran; Whitaker, Ross T.; Greer, Douglas (Blackwell Science Ltd and the Eurographics Association, 1995)
      This paper presents a system for constructing collaborative design applications based on distributed augmented reality. Augmented reality interfaces are a natural method for presenting computer-based design by merging ...
    • An Incremental Alignment Algorithm for Parallel Volume Rendering 

      Or, Daniel Cohen; Fleishman, Shachar (Blackwell Science Ltd and the Eurographics Association, 1995)
      This paper introduces a data distribution scheme and an alignment algorithm for parallel volume rendering. The algorithm performs a single wrap-around shear transformation which requires only a regular inter-processor ...
    • Automatic Reconstruction of Unstructured 3D Data: Combining a Medial Axis and Implicit Surfaces 

      Bittar, Eric; Tsingos, Nicolas; Gascuel, Marie-Paule (Blackwell Science Ltd and the Eurographics Association, 1995)
      This paper presents a new method that combines a medial axis and implicit surfaces in order to reconstruct a 3D solid from an unstructured set of points scattered on the object s surface. The representation produced is ...
    • Fair Surface Reconstruction Using Quadratic Functionals 

      Kolb, Andreas; Pottmann, Helmut; Seidel, Hans-Peter (Blackwell Science Ltd and the Eurographics Association, 1995)
      An algorithm for surface reconstruction from a polyhedron with arbitrary topology consisting of triangular faces is presented. The first variant of the algorithm constructs a curve network consisting of cubic Bezier curves ...
    • A Real-time Continuous Alphabetic Sign Language to Speech Conversion VR System 

      Liang, Rung-Huei; Ouhyoung, Ming (Blackwell Science Ltd and the Eurographics Association, 1995)
      Many ways of communications are used between human and computer, while using gesture is considered to be one of the most natural way in a virtual reality system. Because of its intuitiveness and its capability of helping ...
    • Using Procedural RenderMan Shaders for Global Illurnination 

      Slusallek, Philipp; Pflaum, Thomas; Seidel, Hans-Peter (Blackwell Science Ltd and the Eurographics Association, 1995)
      Global illumination techniques like radiosity or Monte-Carlo ray-tracing are becoming standard features of rendering systems. However, there is currently no accepted interface format which supports an appropriate ...
    • The HUMANOID Environment for Interactive Animation of Multiple Deformable Human Characters 

      Boulic, R.; Capin, T.; Huang, Z.; Kalra, P.; Lintermann, B.; Magnenat-Thalmann, N.; Moccozet, L. and Molet, T. and Pandzic, I. and Saar, K. and Schmitt, A. and Shen, J. and Thalmann, D. (Blackwell Science Ltd and the Eurographics Association, 1995)
      We describe the HUMANOID environment dedicated to human modeling and animation for general multimedia, VR, and CAD applications integrating virtual humans. We present the design of the system and the integration of the ...
    • Synthetic Vision and Audition for Digital Actors 

      NOSER, Hansrudi; THALMANN, Daniel (Blackwell Science Ltd and the Eurographics Association, 1995)
      We present an overview of some principles of synthetic vision and audition for digital autonomous actors in virtual worlds. After a short review of the state-of-the-art we focus on some aspects of synthetic vision and ...