Now showing items 21-40 of 69

    • On the Integration of Synthetic Objects with Real-World Scenes 

      Abad, Francisco; Camahort, Emilio; Vivó, Roberto (Eurographics Association, 2002)
      This paper presents a method for integrating synthetic objects in real-world photographs. We take a set of photographs of a real scene and build a simple image-based model. We use high dynamic range images to build an ...
    • Using pre-integrated Transfer Functions in an Interactive Software System for Volume 

      Knittel, Guenter (Eurographics Association, 2002)
      We explore possibilities to implement classification based on pre-integrated transfer functions in a software system for high-speed volume rendering. The major obstacle to remove is the large size of the multi-dimensional ...
    • The Voronoi-Quadtree: construction and visualization 

      Coll, Narcís; Boada, Imma; Sellares, J.A. (Eurographics Association, 2002)
      We define a quadtree-based planar Voronoi diagram codification, the Voronoi-Quadtree, valid for generalized sites (points, line-segments, curve-arc segments, ...) and for different distance functions (Euclidean metrics, ...
    • Simulation of Cumuliform Clouds Based on Computational Fluid Dynamics 

      Miyazaki, Ryo; Dobashi, Yoshinori; Nishita, Tomoyuki (Eurographics Association, 2002)
      Simulation of natural phenomena is one of the important research fields in computer graphics. In particular, clouds play an important role in creating images of outdoor scenes. Fluid simulation is effective in creating ...
    • Extraction of Critical Points and Nets Based on Discrete Gradient Vector Field 

      De Floriani, Leila; Mesmoudi, Mohammed Mostefa; Danovaro, Emanuele (Eurographics Association, 2002)
      In this paper we address the problem of representing the topology of discrete scalar fields defined on triangulated domains. To this aim, we use the notion of discrete gradient vector field that we have introduced in [4] ...
    • Concise Tour to the Virtual Old Prague 

      Zara, Jiri (Eurographics Association, 2002)
      This paper describes a structure and a user interface of the Internet based 3D presentation of existing historical part of city Prague. The application offers a smooth tour to selected regions of the real city, utilizing ...
    • Dynamic Motion Models 

      Grünvogel, Stefan Michael; Lange, Thorsten; Piesk, Jens (Eurographics Association, 2002)
      Real-time animation of virtual characters is a demanding task. We propose dynamic motion models which can create the motion of a virtual character in different styles and have the ability to change the animation while it ...
    • Dynamics-Based Motion Synthesis by Simple Learning Control 

      Kiriazov, Petko (Eurographics Association, 2002)
      Point-to-point motion of a humanoid agent (or any mobile creature) is considered as a composition of basic movements related to the degrees of freedom. With time/energy performance criteria, such movements can be synthesized ...
    • A Method for Creating Mosaic Images Using Voronoi Diagrams 

      Dobashi, Yoshinori; Haga, Toshiyuki; Johan, Henry; Nishita, Tomoyuki (Eurographics Association, 2002)
      This paper proposes a non-photorealistic rendering method that creates an artistic effect called mosaicing. The proposed method converts images provided by the user into the mosaic images. Commercial image editing applications ...
    • Distance fields applied to character animation 

      Rudomin, Isaac; Castillo, J. (Eurographics Association, 2002)
      A general hybrid geometric-physical method that is useful for animating characters with skin, clothing and a MPEG-4 compatible face is presented. This method uses an approximation to the underlying musculo-skeletal structure ...
    • Real-Time Animated Grass 

      Bakay, Brook; Lalonde, Paul; Heidrich, Wolfgang (Eurographics Association, 2002)
      We present a simple method to render fields of grass, animated in the wind, in real-time. The technique employs vertex shaders to render displacement maps with Russian-doll style transparent shells. Animation is achieved ...
    • Improved Integration for Cloth Simulation 

      Parks, David L.; Forsyth, David A. (Eurographics Association, 2002)
      Most methods of cloth simulation produce animations that do not move very freely; the result often looks like the material is “swimming”. The primary sources of this phenomenon are the non-physical dissipation terms often ...
    • Digital Watermarking for Volumetric Datasets 

      Dimitrov, Leonid I.; Sramek, Milos (Eurographics Association, 2002)
      An idea for digitaly watermarking volumetric datasets (VDS) and preliminary results from a test implementation are presented. It consists of a combination of filtering and rendering operations on volumetric data allowing ...
    • Geometric Simplification of Foliage 

      Remolar, Inmaculada; Chover, Miguel; Belmonte, Oscar; Ribelles, Jose; Rebollo, Cristina (Eurographics Association, 2002)
      One of the most important challenges in real-time rendering of outdoor scenes is the representation of vegetation. This is due to the vast amount of polygons that are used to model vegetable species. The present automatic ...
    • Mesh Decimation for Displacement Mapping 

      Collins, Gordon; Hilton, Adrian (Eurographics Association, 2002)
      We present a mesh decimation algorithm for triangular meshes. Unlike other decimation algorithms we are not concerned with geometric error but with the existence of a displacement mapping which can map between the original ...
    • Fast Volume Carving 

      Pyo, Soon Hyoung; Shin, Yeong Gil (Eurographics Association, 2002)
      In recent years, the volumetric scene representation has been widely used in the fields of computer graphics and computer vision. In computer graphics, the representation is used to visualize and reconstruct 3D internal ...
    • A Convolution-Based Algorithm for Animated Water Waves 

      Loviscach, Jörn (Eurographics Association, 2002)
      A non-linear partial differential equation solver is too sophisticated for computer graphics applications if they are only used to render effects like circular waves and ship wakes. We present an approach which simulates ...
    • Modeling Visual Attention in VR: Measuring the Accuracy of Predicted Scanpaths 

      Duchowski, Andrew; Marmitt, Gerd (Eurographics Association, 2002)
      Dynamic human vision is an important contributing factor to the design of perceptually-based Virtual Reality. A common strategy relies on either an implicit assumption or explicit measurement of gaze direction. Given the ...
    • Image Editing with Intelligent Paint 

      Reese, Jack; Barrett, William (Eurographics Association, 2002)
      Intelligent Paint provides a new tool for interactively selecting image objects or regions of interest, while simultaneously applying filters or effects directly to the selection(s). By coupling adaptive cost-ordered region ...
    • Multi-dimensional and Multi-scale Visualizer of Large XML Documents 

      Jacquemin, Christian; Jardino, Michele (Eurographics Association, 2002)
      3D-XV (3-Dimensional XML Visualizer) is an interactive graphical interface for accessing large structured documents. It relies on a geometrical model that combines a sequential organization and a hierarchical structure. ...