Now showing items 20-39 of 69

    • Feature Extraction and Visualisation of Flow Fields 

      Post, Frits H.; Vrolijk, Benjamin; Hauser, Helwig; Laramee, Robert S.; Doleisch, Helmut (Eurographics Association, 2002)
      Flow visualisation has already been a very attractive part of visualisation research for a long time. Usually very large data sets need to be processed, which often consist of multivariate data with a large number of sample ...
    • Feature interference in free form template matching 

      Song, Y.; Vergeest, J. S. M.; Horvath, I. (Eurographics Association, 2002)
      Template matching is a useful method in the reconstruction of free form surfaces. In this paper, matching of free form surfaces with parameterized templates is studied with the emphasis on feature interference. By their ...
    • Flexible bump map capture from video 

      Paterson, James Alexander; Fitzgibbon, Andrew W. (Eurographics Association, 2002)
      We extend recent techniques for the automated capture of surface normal maps or bump maps from real-world material samples. In contrast to recent systems, which have required cumbersome laboratory setups with careful ...
    • Frame-Coherent Stippling 

      Meruvia Pastor, Oscar E.; Strothotte, Thomas (Eurographics Association, 2002)
      Stippling is an artistic rendering technique where shading and texture is given by placing points or stipples on the canvas until the desired darkness is achieved. Computer-generated stippling has focused on producing high ...
    • From Textual Chats to Interest Groups in 3D Virtual Space 

      Masa, Michal; Zara, Jiri (Eurographics Association, 2002)
      While the textual chat is a highly popular tool for various kinds of social interactions, its extension to the visual three-dimensional domain remains almost untouched and without practical utilization yet. This paper ...
    • Function-defined shape node for VRML 

      Lai, Feng Min; Sourin, Alexei (Eurographics Association, 2002)
      This paper describes how the web-based visualisation can be greatly improved using the function-based shape modelling technique. We propose the function-defined VRML shape node, which allows the content creators to describe ...
    • Geometric Data Structures for Computer Graphics 

      Zachmann, Gabriel; Langetepe, Elmar (Eurographics Association, 2002)
      This tutorial aims at presenting a wide range of geometric data structures, algorithms and techniques from computational geometry to computer graphics practitioners. To achieve this goal we introduce several data structures, ...
    • 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 ...
    • Global Illumination for Interactive Applications and High-Quality Animations 

      Damez, Cyrille; Dmitriev, Kirill; Myszkowski, Karol (Eurographics Association, 2002)
      One of the main obstacles to the use of global illumination in image synthesis industry is the considerable amount of time needed to compute the lighting for a single image. Until now, this computational cost has prevented ...
    • Hardware-Assisted Relief Texture Mapping 

      Fujita, Masahiro; Kanai, Takashi (Eurographics Association, 2002)
      Image-Based Rendering by Warping (IBRW) creates three-dimensional scene by deforming several 2D images with depth information. Image-based rendering has an advantage compared to traditional polygon rendering that 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 ...
    • An Image-Based Radiosity Representation 

      Mertens, Tom; Van Reeth, Frank (Eurographics Association, 2002)
      We present a geometry-independent radiosity representation which stems from image-based methodologies. Our image-based representation is inspired by the concept of layered depth images. To construct the radiosity function ...
    • Improved Bump Mapping by using Quadratic Vector Interpolation 

      Hast, Hans Anders; Barrera, Tony; Bengtsson, Ewert (Eurographics Association, 2002)
      Bump mapping is a technique that perturbs normals used in the illumination computation in order to make the surface appear rough or wrinkled. Standard graphics hardware linearly interpolates rotated vectors in the direction ...
    • 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 ...
    • Information-Theoretic Oracle Based on Kernel Smoothness for Hierarchical Radiosity 

      Feixas, Miquel; Rigau, Jaume; Bekaert, Philippe; Sbert, Mateu (Eurographics Association, 2002)
      One of the main problems in the radiosity method is how to discretise the surfaces of a scene into mesh elements that allow us to accurately represent illumination. In this paper we present a robust information-theoretic ...
    • Interactive High-Quality Volume Rendering with Flexible Consumer Graphics Hardware 

      Engel, Klaus; Ertl, Thomas (Eurographics Association, 2002)
      Recently, the classic rendering pipeline in 3D graphics hardware has become flexible by means of programmable geometry engines and rasterization units. This development is primarily driven by the mass market of computer ...
    • Interactive Polygonisation for Function-based Modelling 

      Sourin, Alexei; Levinski, Konstantin (Eurographics Association, 2002)
      This paper addresses interactive function-based shape modelling. Interactive modification of the function model with concurrent visualization of the respective polygonal mesh lets us provide both the interactivity and any ...
    • Interactive Visualization with Programmable Graphics Hardware 

      Ertl, Thomas (Eurographics Association, 2002)
      One of the main scientific goals of visualization is the development of algorithms and appropriate data models which facilitate interactive visual analysis and direct manipulation of the increasingly large data sets which ...
    • Interpolating 2D Shape Hierarchically 

      Johan, Henry; Nishita, Tomoyuki (Eurographics Association, 2002)
      Shape interpolation has been widely used in the field of computer graphics for modeling and for creating visual effects. This paper presents a novel hierarchical method to interpolate between two 2D shapes. A hierarchical ...
    • Knowledge-Based Representation of Cinematic Expression and its Application to Animation 

      Friedman, Doron; Feldman, Yishai (Eurographics Association, 2002)
      Camera control in virtual environments received growing attention recently, and some of the research turned to cinematography as a source for inspiration. Cinematic knowledge is a highly challenging domain for formalization. ...