Now showing items 21-40 of 75

    • Efficient and Handy Texture Mapping on 3D Surfaces 

      Matsushita, Kenji; Kaneko, Toyohisa (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      There has been a rapid technical progress in three-dimensional (3D) computer graphics. But gathering surface and texture data is yet a laborious task. This paper addresses the problem of mapping photographic images on the ...
    • Data Intermixing and Multi-volume Rendering 

      Cai, Wenli; Sakas, Georgios (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      The main difference between multi-volume rendering and mono-volume rendering is data intermixing. In this paper, we present three levels of data intermixing and their rendering pipelines in direct multi-volume rendering, ...
    • Image Morphing with Feature Preserving Texture 

      Tal, Ayellet; Elber, Gershon (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      Image metamorphosis as an animation tool has mostly been employed in the context of the entire image. This work explores the use of isolated and focused image based metamorphosis between two-dimensional objects, while ...
    • Seamless Integration of Databases in VR for Constructing Virtual Environments 

      Soetebier, Ingo; Dorner, Ralf; Braun, Norbert (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      An approach for authoring virtual environments within the virtual environments themselves is presented, integrating a database containing arbitrary components that are used to construct the 3D scene. The issues important ...
    • An Informed Environment Dedicated to the Simulation of Virtual Humans in Urban Context 

      Farenc, Nathalie; Boulic, Ronan; Thalmann, Daniel (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      In this paper, we outline the creation of an Informed Environment, dedicated to urban life simulation.We propose methods and tools for creating and providing the information necessary for animating virtual humans in a city ...
    • Partitioning and Handling Massive Models for Interactive Collision Detection 

      Wilson, A.; Larsen, E.; Manocha, D.; Lin, M. C. (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      We describe an approach for interactive collision detection and proximity computations on massive models composed of millions of geometric primitives. We address issues related to interactive data access and processing in ...
    • The Hybrid World of Virtual Environments 

      Smith, Shamus; Duke, David; Massink, Mieke (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      Much of the work concerned with virtual environments has addressed the development of new rendering technologies or interaction techniques. As the technology matures and becomes adopted in a wider range of applications, ...
    • Interactive Mechanical Design Variation for Haptics and CAD 

      Nelson, Donald D.; Cohen, Elaine (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      A fast design variation technique for mechanical systems is presented. It is used to interactively optimize mechanical characteristics while "self-assembling" or satisfying large systems of mechanical constraints. The high ...
    • Active Storytelling 

      Glassner, Andrew (Blackwell Publishers Ltd and the Eurographics Association, 1999)
    • A Translucent Sketchpad for the Virtual Table Exploring Motion-based Gesture Recognition 

      Encarnacao, L. M.; Bimber, O.; Schmalstieg, D.; Chandler, S. D. (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      The Virtual Table presents stereoscopic graphics to a user in a workbench-like setting. For this device, a user interface and new interaction techniques have been developed based on transparent props -a tracked hand-held ...
    • A New Method of Image Mosaicking and Its Application to Cultural Heritage Representation 

      Cortelazzo, G.M.; Lucchese, L. (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      This paper presents an original two-step procedure for estimating projective transformations between pairs of images: first, the transformation between the images is approximated as an affine transformation; second, this ...
    • Virtual Dunhuang Art Cave: A Cave within a CAVE 

      Lutz, B.; Weintke, M. (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      Virtual Reality can present historical places in a three-dimensional and interactive way, giving visitors a photorealistic impression of objects. Not only existing scenarios can be shown, but VR can also be used to rebuild ...
    • Texturing 3D Models of Real World Objects from Multiple Unregistered Photographic Views 

      Neugebauer, Peter J.; Klein, Konrad (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      As the efficiency of computer graphic rendering methods is increasing, generating realistic models is now becoming a limiting factor. In this paper we present a new technique to enhance already existing geometry models of ...
    • Stochastic Iteration for Non-diffuse Global Illumination 

      Szirmay-Kalos, Laszlo (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      This paper presents a single-pass, view-dependent method to solve the rendering equation, using a stochastic iterational scheme where the transport operator is selected randomly in each iteration. The requirements of ...
    • A Practical Analysis of Clustering Strategies for Hierarchical Radiosity 

      Hasenfratz, Jean-Marc; Damez, Cyrille; Sillion, Francois; Drettakis, George (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      The calculation of radiant energy balance in complex scenes has been made possible by hierarchical radiosity methods based on clustering mechanisms. Although clustering offers an elegant theoretical solution by reducing ...
    • Computer-Generated Graphite Pencil Rendering of 3D Polygonal Models 

      Sousa, Mario Costa; Buchanan, John W. (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      Researchers in non-photorealistic rendering have investigated the display of three-dimensional worlds using various display models. In particular, recent work has focused on the modeling of traditional artistic media and ...
    • Weighted Multipass Methods for Global Illumination 

      Suykens, Frank; Willems, Yves D. (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      In multipass rendering, care has to be taken to include all light transport only once in the final solution. Therefore the different methods in current multipass configurations handle a perfectly disjunct part of the light ...
    • Compact Metallic Reflectance Models 

      Neumann, Laszlo; Neumannn, Attila; Szirmay-Kalos, Laszlo (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      The paper presents simple, physically plausible, but not physically based reflectance models for metals and other specular materials. So far there has been no metallic BRDF model that is easy to compute, suitable for fast ...
    • An Interactive Designing System with Virtual Sculpting and Virtual Woodcut Printing 

      Mizunoy, S.; Okadayy, M.; Toriwakiy, J. (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      In this paper, we propose an interactive designing method and a system based on it to create 3D objects and 2D images. This system consists of two subsystems for virtual sculpting to create a 3D shape and virtual printing ...
    • Capturing and Re-Using Rendition Styles for Non-Photorealistic Rendering 

      Hamel, J.; Strothotte, T. (Blackwell Publishers Ltd and the Eurographics Association, 1999)
      Rendering high-quality non-photorealistic images of a given geometric model is often associated with a considerable amount of effort on the part of a user to fine-tune the rendition. In this paper we introduce a method and ...