Browsing Volume 10 (1991) by Title

Now showing items 36-55 of 65

    • Liberation from Flatland: 3D Interaction Based on the Desktop Bat 

      Slater, Mel; Davison, Allan (Eurographics Association, 1991)
      A novel device for 3D interaction is introduced, the Desktop Bat. This device is an evolutionary development of a mouse. It is like a mouse in that it is used on a desktop, but provides 5 degrees of freedom since in ...

    • Low Sampling Densities using a psychovisual approach 

      Bouville, Christian; Tellier, Pierre; Bouatouch, Kadi (Eurographics Association, 1991)
      It has long been observed that the keenness of sight is lower for diagonal directions than for horizontal or vertical ones. This anisotropy of the human eye response can be exploited by using a non-orthogonal sampling ...

    • A Methodology And Tool Set For Supporting The Development Of Graphical User Interfaces 

      Neelamkavil, F.; Mullarney, O. (Blackwell Science Ltd and the Eurographics Association, 1991)
      A methodology and tool set for building application (assumed to be inherently non-graphical) software with graphical user interface is described. Initially, pure application software is built from a set of basic building ...

    • Million-Point Sculptures 

      Pickover, Cliff (Blackwell Science Ltd and the Eurographics Association, 1991)
      Visually interesting chaotic attractors resembling sculpture are described.

    • MOVE-X: A System for Combining Video Films and Computer Animation 

      Ertl, Gerhard; Müller-Seelich, Heimo; Tabatabai, Behnam (Eurographics Association, 1991)
      The objective of the presented project was to implement a system for the visualization of buildings. The system is used to create movies of buildings and interior rooms before they are built. For a realistic impression of ...

    • Object-Oriented Data Modelling for Graphics Databases: a Declarative Approach 

      Bhalla, Neelam; Balasundaram, S. (Blackwell Science Ltd and the Eurographics Association, 1991)
      This paper presents a new scheme to integrate the declarative approach to graphics and object-oriented data modelling techniques to form a fruitful symbiosis for constraint-based graphics database systems. It has rich ...

    • A Physically Based Colour Model 

      Oddy, Robert J.; Willis, Philip J. (Blackwell Science Ltd and the Eurographics Association, 1991)
      We propose an intuitively simple way of representing colour which has the additional virtue that, it permits mixing and overlaying of transparent and opaque paints to an arbitrary degree. Our approach is related to the ...

    • A Picture Archive Browser 

      Willis, Philip; Hunter, Andrew (Blackwell Science Ltd and the Eurographics Association, 1991)
      We describe an implementation of a networked picture browser. The system offers a pictorial interface to pictorial data, relieves the users of thinking about the underlying filing system, provides managerial tools for ...

    • Quadtrees, Transforms and Image Coding 

      Martin, R.R.; Anguh, M.M. (Blackwell Science Ltd and the Eurographics Association, 1991)
      Transforms and quadtrees are both methods of representing information in an image in terms of the presence of information at differing length scales. This paper presents a mathematical relationship between these two ...

    • Radiosity for Furry Surfaces 

      Chen, Hong; Wu, En-Hua (Eurographics Association, 1991)
      Though radiosity method is an advanced rendering technique of global illumination, it is still not sufficiently to cope with many natural phenonmena such as furry surfaces. The rendering of furry surfaces has been a long ...

    • Refinement criteria for adaptive stochastic ray tracing of textures 

      van Walsum, Theo; van Nieuwenhuizen, Peter R.; Jansen, Frederik W. (Eurographics Association, 1991)
      Adaptive stochastic ray tracing is a rendering technique that generates high-quality anti-aliased images by sampling the image in a non-regular pattern that is adaptively refined. Image refinement can be guided by image ...

    • Sampling and Anti-Aliasing of Discrete 3-D Volume Density Textures 

      Sakas, Georgios; Gerth, Matthias (Eurographics Association, 1991)
      In recent years, a number of techniques have been developed for rendering volume effects (haze, fog, smoke, clouds, etc.) in order to enhance reality in computer-generated imagery as well as to improve the performance of ...

    • Search for the Intersection Polygon of any Two Polygons: Application to the Garment Industry 

      Mangen, Alain; Lasudry, Nadine (Blackwell Science Ltd and the Eurographics Association, 1991)
      One of the biggest problems usually encountered by the clothes manufacturer consists of placing various pattern parts on a rectangular area in such a way that the waste of material between the pieces is minimized.To bring ...

    • Serial cuttings matching: An application to muscle fiber characterization 

      Buche, Patrice (Eurographics Association, 1991)
      In this paper, we present one important aspect of a complete application of numerical image analysis in biology. We want to analyse a biological object through serial cuttings to measure morphological and biochemical ...

    • Several approaches to implement the merging step of the split and merge region segmentation 

      Popovic, M.; Chantemargue, F.; Canals, R.; Bonton, P. (Eurographics Association, 1991)
      The purpose of this paper is to propose several approaches for the implementation of the merging step of split and merge region segmentation. The splitting step has already been studied and its parallelization has subsequently ...

    • Shading with Area Light Sources 

      Tanaka, Toshimitsu; Takahashi, Tokiichiro (Eurographics Association, 1991)
      This paper derives a shading model for area light sources which covers both diffuse and specular reflection. The shading model assumes ideally diffuse polygonal light sources and uses Phong’s reflection model. The model ...

    • The Shortest Way to Draw a Connected Picture 

      Seebold, Patrice; Slowinski, Karine (Blackwell Science Ltd and the Eurographics Association, 1991)
      With any word over the alphabet ?=r, r?, u, u, we associate a connected picture in the following manner: the reading of each letter of this word induces a unit line: r (r?, u, u respectively) stands for a right (left, up, ...

    • Simultaneous Generation of Stereoscopic Views 

      Adelson, Stephen J.; Bentley, Jeffrey B.; Chong, In Seok and Hodges, Larry F. and Winograd, Joseph (Blackwell Science Ltd and the Eurographics Association, 1991)
      Currently almost all computer graphic stereoscopic images are generated by doubling the work required to create a single image. In this paper we derive and analyze algorithms for simultaneous generation of the two views ...

    • Solid-Interpolating Deformations: Construction and animation of PIPs 

      Kaul, Anil; Rossignac, Jarek (Eurographics Association, 1991)
      Computer programs that simulate the deformations of geometric shapes have played a key role in the increasing popularity of software tools for artistic animation. Previously published techniques for specifying and animating ...

    • A Survey of Several Root-Finding Methods in the Complex Plane 

      Szyszkowicz, Mieczyslaw (Blackwell Science Ltd and the Eurographics Association, 1991)
      In this paper a few classes of root-finding iterative methods are presented and used in the complex plane to solve the equation z4? 1 = 0. These methods are studied using computer graphics techniques.