Browsing EG1990 Proceedings (Technical Papers) by Issue Date

Now showing items 1-20 of 45

    • Relaxed Multi-rate Systolic Array Graphics Engine for High Resolution Real-time Computer Graphics 

      Jayasinghe, J.A.K.S.; Herrmann, O.E. (Eurographics Association, 1990)
      Generation of realistic images while supporting faster interaction is a topic in computer graphics research which has drawn considerable attention. Conventional frame buffer has been identified as a major bottle-neck for ...

    • A shadow algorithm for CSG 

      Jansen, Frederik W.; van der Zalm, Arno N. T. (Eurographics Association, 1990)
      An algorithm is presented for constructing shadow volumes for CSG objects. For each primitive solid, the algorithm calculates a tree of shadow volumes to model the shadows generated by the shadow-generating parts of the ...

    • A PIPELINED-PARALLEL ARCHITECTURE FOR 2.5-D BATCH RASTERIZERS 

      Birk, Yitzhak; Mccrossin, lames M . (Eurographics Association, 1990)
      The emergence of application programs that take advantage of highly expressive page description languages has sharply increased the amount of computing required for rasterizing an average page, and single-microprocessor ...

    • COLOR IMAGE RECONSTRUCTION FROM NONUNIFORM SPARSE SAMPLES USING A THIN PLATE MODEL 

      Metaxas, Dimitris; Milios, Evangelos (Eurographics Association, 1990)
      In this paper we solve the problem of reconstructing a color image from sparse, noisy, and nonuniformly distributed color measurements. We apply a method for reconstructing a surface from sparse depth measurements to each ...

    • AN OBJECT ORIENTED APPROACH TO ENSURE PORTABILITY OF CAD STANDARD PARTS LIBRARIES 

      Pierra, Guy (Eurographics Association, 1990)
      The integration, in CAD systems, of libraries of standard parts is often considered to be one of the key factors for increasing productivity of Computer Aided Design [1] [2] [3]. These libraries must be able to integrate ...

    • A PROPOSAL FOR A POSTSCRIPT 3D EXTENSION 

      Cesar, Christian L. (Eurographics Association, 1990)
      A 3D graphics extension to the PostScript language is proposed. The extension maintains the same graphic programming style that characterizes the language's 2D environment. The extensions proposed cover 3D graphics state, ...

    • Joint Editing with DAPHNE A System integrating CGMs into SGML Documents 

      Scheller, Angela; Fuhrhop, Christian (Eurographics Association, 1990)
      This paper presents DAPHNE, a document processing system for joint editing within the German Research Network DFN. DAPHNE is based on two international standards in the area of document and graphics processing, the Standard ...

    • 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 ...

    • Cross Scanline Algorithm 

      Tanaka, Toshimitsu; Talcahashi, Tokiichiro (Eurographics Association, 1990)
      This paper proposes a new hidden surface removal algorithm which is based on the scanline algorithm but scans in two directions, horizontally and vertically. Named the cross scanline algorithm, it can efficiently detect ...

    • TRIMO A Workstation-Based Interactive System for the Generation, Manipulation, and Display of Surfaces over Arbitrary Topological Meshes 

      Slusallek, Philipp B.; Seidel, Hans-Peter (Eurographics Association, 1990)
      TRIMO has been designed as a workstation-based interactive system for the generation, manipulation, and display of surfaces over arbitrary toplogical meshes. In addition to rational tensor product Bezier and B-spline ...

    • PRESENTATION OF PRODUCT MODEL DATA -AN INTERFACE BETWEEN GRAPHICS AND CAD- 

      Klement, Kornel (Eurographics Association, 1990)
      The associative visualization of revisable product model data is of great importance for the usefulness and the acceptance of standards in the field of CAD data exchange. The outlines of a separate Presentation module which ...

    • 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 ...

    • COLOR SHADING IN 2D SYNTHESIS 

      Bourdin, J.J.; Braquelaire, J.P. (Eurographics Association, 1990)
      In interactive 2D synthesis applications, features for filling regions are generally elementary (uniform colouring, filling with a regular pattern.. .). Interactive design of 2D colour shadings raises two major problems: ...

    • 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. ...

    • 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. ...

    • Colour Illustrations 

      - (Eurographics Association, 1990)

    • 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 ...

    • ADAPTIVE POLYGONIZATION OF IMPLICIT SURFACES USING SIMPLICIAL DECOMPOSITION AND BOUNDARY CONSTRAINTS 

      Velho, Luiz (Eurographics Association, 1990)
      This paper presents a method to generate a polygonal approximation of implicit surfaces. Space partitioning by simplicial decomposition is used to sample the surface, which provides an unambiguous framework for polygon ...

    • 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 ...