Eurographics Conferences: Recent submissions

Now showing items 1081-1100 of 2886

    • Construction Techniques of Graphic, Direct-Manipulation User Interfaces 

      Preea, Wolfgang; Pornberger, Gustav; Sikora, Hermann (Eurographics Association, 1991)
      This paper deals with human-computer interaction in several ways. On the one hand it presents the roots of interactive, graphic user interfaces and how such interfaces are implemented on the abstraction level of programming ...

    • Constructive Cubes: CSG Evaluation For Display Using Discrete 3-D Scalar Data Sets 

      Breen, David E. (Eurographics Association, 1991)
      The algorithm presented in this paper converts a CSG model into a representation for interactive display on an engineering workstation. Called Constructive Cubes, the algorithm extends the standard CSG-point classification ...

    • Combining Volume Rendering with Line and Surface Rendering 

      Frühauf, Martin (Eurographics Association, 1991)
      Volume data is discrete sampled data in the three-dimensional space. Volume rendering is defined as volume visualization directly from volume primitives and not via surface primitives. Geometric objects are represented as ...

    • Continuation Methods for Approximating Isovalued Complex Surfaces 

      Zahlten, Cornelia; Jürgens, Hartmut (Eurographics Association, 1991)
      Basically there are two different approaches for rendering isovalued surfaces in 3D space: projection methods and surface reconstruction. We are discussing two algorithms of the second kind. Both use continuation methods ...

    • FACES: Facial Animation, Construction and Editing System 

      Patel, Manjula; Willis, Philip J. (Eurographics Association, 1991)
      The aim of the Facial Animation, Construction and Editing System (FACES) is to provide a software simulation of the human face. Attention has focused on the face as an important means of non-verbal communication. The ...

    • Colour Illustrations 

      - (Eurographics Association, 1991)

    • WSE: An Environment for Exploring Window Strategies 

      Koivunen, Marja-Riitta (Eurographics Association, 1990)
      This paper describes Window Strategies Environment (WSE), which is an environment for exploring different window strategies. It is a tool for developers who want to implement and explore different window strategies easily. ...

    • TRIES: DATA STRUCTURES BASED ON BINARY REPRESENTATION FOR RAY TRACING 

      Thirion, Jean-Philippe (Eurographics Association, 1990)
      Tries are data structures used for multidimensional searching. We introduce an original method to build Tries for a set of convex polyhedra, weshow how Tries can be used for Ray tracing and we compare them with other data ...

    • OPTIMIZATION OF THE BINARY SPACE PARTITION ALGORITHM (BSP) FOR THE VISUALIZATION OF DYNAMIC SCENES 

      Torres, Enric (Eurographics Association, 1990)
      This paper describes an improvement of the generation of BSP trees and its utilization in the visualization of dynamic polyhedral scenes. Dynamic BSP trees, a new six-level structure, are presented. Dynamic BSP trees are ...

    • RENDERING MIRAGES AND OTHER ATMOSPHERIC PHENOMENA 

      Berger, Marc; Levit, Nancy; Trout, Terry (Eurographics Association, 1990)
      The past few years have seen some very impressive results in rendering natural phenomena. This paper addresses the problem of how to model and render optical illusions brought about by atmospheric refraction. Refraction ...

    • PRELOG - A SYSTEM FOR PRESENTING AND RENDERING LOGIC SPECIFICATIONS OF INTERACTIVE SYSTEMS 

      Johnson, C.W.; Harrison, M.D. (Eurographics Association, 1990)
      Formal specifications provide the non-specialist with an extremely poor impression of what it would be like to interact with a computer system. Prototypes provide a far better impression of the ‘look and feel’ of possible ...

    • Fast Rendering of Arbitrary Distributed Volume Densities 

      Sakas, Georgios (Eurographics Association, 1990)
      In recent years a number of techniques have been developed for rendering volume effects (haze, fog, smoke, clouds, etc.). These techniques are either time consuming (ray-tracing, radiosity) or do not account for arbitrary ...

    • INTERACTIVE RAY-TRACING FOR IMAGE PRODUCTION WITH INCREASING REALISM 

      Sousa, A. Augusto; Costa, Antonio M. C.; Ferreira, Fernando N. (Eurographics Association, 1990)
      The generation of highly realistic images using the conventional Ray-Tracing algorithm, in CAD environments, is totally out of the question if we consider the interactive requirements of most CAD systems. In this paper, ...

    • THREE-DIMENSIONAL TEXTURING USING LATTICES 

      Lewis, Robert R. (Eurographics Association, 1990)
      This paper describes a way to perform realistic three-dimensional texturing of ray-traced objects with irregular surfaces. Such texturing has teen done in the past with texture mapping, particle systems, or volumetric ...

    • AN APPROACH TO THE FORMAL SPECIFICATION OF THE COMPONENTS OF AN INTERACTION 

      Faconti, Giorgio P.; Paterno, Fabio (Eurographics Association, 1990)
      In this paper we present the preliminary results from a work aiming to the formal specification af a model suitable for the description of interactive graphics program within the framework defined by the Reference Model ...

    • Mathematical Models for Semi-globalized Spectral Synthesis 

      Anjyo, Ken-ichi (Eurographics Association, 1990)
      Semi-globalized spectral synthesis is proposed as a new tool for three-dimensional scene description consisting of many natural objects, such as terrain, sea waves, and clouds. The method is based on the mathematical theory ...

    • AN APPROACH TO IMPROVE THE RELIABILITY OF BOOLEAN OPERATION ON A PAIR OF POLYHEDRA 

      Li, Xinyou; Sun, Jiaguang; Tang, Zesheng (Eurographics Association, 1990)
      It is essential and pressing to improve reliability of Boolean operations in geometric modelling systems. The Boolean operations in commercial systems now available are not reliable enough because of numerical calculation ...

    • On Formulation and Display for Visualizing Features and Evaluating Quality of Free-form Surfaces 

      Higashi, Masatake; Kushimoto, Takuya; Hosaka, Mamoru (Eurographics Association, 1990)
      For evaluating quality of free-form surfaces and visualizing their features, various curves on a surface, which characterize its properties, are defined and their equations are deduced. Newly introduced curves include those ...

    • AUTOMATIC MODELLING OF NATURAL SCENES FOR GENERATING SYNTHETIC MOVIES 

      Koch, Reinhard (Eurographics Association, 1990)
      A model based analysis by synthesis algorithm is presented. It combines image analysis and synthesis techniques to obtain a three dimensional scene description and to generate synthetic movies out of that scene description. ...

    • A Stochastic Functional Approach for Terrain Modeling 

      Dong, Jun-Cai; Peng, Qun-Sheng; Liang, You-Dong (Eurographics Association, 1990)
      A new functional modeling approach - -functional modeling, is presented to depict various classes of natural terrain. While this approach possesses the functions of several previous methods, it does not suffer the drawbacks ...