Now showing items 321-340 of 524

    • Content-Addressable Memories for Quadtree-8ased Images 

      Oldfield, J.V.; Williams, R.D.; Wiseman, N.E.; Brûlé, M.R. (The Eurographics Association, 1988)
      Quadtrees are attractive for storing and processing mages with area coherence, but performance has been limited by software overheads. A Content-Addressable Memory (CAM) with ternary storage allows single-cycle searches ...
    • An Integrated Highly Parallel Architecture for Image Reconstruction 

      Lattard, Didier; Mazare, Guy (The Eurographics Association, 1988)
      The large amount of information and computations is a critical problem in image processing. In this paper we show a highly oarallel method to do image reconstruction which performs at real-time, using an asynchronous ...
    • A Massively Parallel Approach for the Design of a Raytracing Oriented Architecture 

      Muntean, T.; Waille, Ph. (The Eurographics Association, 1988)
      Solving time critical problems requires a computing power of an order of magnitude greater than todays available conventional computers. The use of massively parallel architectures appears to be an attractive and effective ...
    • A Distributed Data Model for Raytracing 

      Skyttä, Jorma; Takala, Tapio (The Eurographics Association, 1988)
      Ray tracing is a superior method for producing realistic images. It can take into account all natural phenomena covered by classical ray optics in image formation, and that without any extra modeling effort. The main ...
    • Point-driven Generation of Images from a Hierarchical Data Structure 

      Jong, Dirk de; Siobbe, Paul van; Splunter, Marinus van (The Eurographics Association, 1988)
      In this paper, a system IS described which renders an image from a hierarchical data structure in a point-driven way. The data structure allows dynamic color mapping and arbitrary affine transformat·ons of objects with ...
    • A VLSI Design Strategy for Graphics 

      Nimmo, AD.; Lister, P.F.; Grimsdale, R.L. (The Eurographics Association, 1988)
      The tools available for ASIC design now offer the features and functionality necessary to permit ideas to be realised in silicon In a relatively short period of lime, This paper introduces work undertaken at Sussex University ...
    • Cellular Architectures and Algorithmsfor Image Synthesis 

      Meriaux, Michel (The Eurographics Association, 1987)
      The aim of this paper is to provide some refiexions and partial results about cellular architectures for image synthesis and graphics. As some steps of image synthesis involve a long processing time, quite incompatible ...
    • Reconstructing Solids from Tomographic Scans --The PARCUM II System-· 

      Jackèl, D. (The Eurographics Association, 1987)
      The computer-aided design of mechanical parts is supported by sophisticated geometric modelers and visualized by high-performance raster graphics systems allowing for a realistic display. The geometric modeler accepts the ...
    • A Multi-Processor Workstationwith a Logic-Enhanced Distributed Frame Buffer 

      Jansen, Frederik W. (The Eurographics Association, 1987)
      A graphics workstation should offer both a wide variety of 20 and 3D realtime display functions as well as a programmable parallel-processing capacity for large processing tasks. A system concept is proposed that meets ...
    • Pixel-Planes 4: A Summary 

      Eyles, John; Austint, John; Fuchs, Henry; Greer, Trey; Poulton, John (The Eurographics Association, 1987)
      We describe the current state of the Pixel-planes research project, whose goal is to develop powerful raster graphics systems for the next generation of workstations, The first full-scale prototype has been in regular use ...
    • Parallel Subpixel Scanconversion 

      Claussen, Ute (The Eurographics Association, 1987)
      "IntroductionComputer graphics and its subsections image processing, image analysis and image generation are known to be a wide field for the application of parallel architectures. While in image processing and analysis ...
    • A Vector-like Architecture for Raster Graphics 

      Akman, Varol; Hagen, Paul ten; Kuijk, Fons (The Eurographics Association, 1987)
      Raster graphics, while good at achieving realistic and cost-effective image generation, lacks useful (e.g. high-level) and fast (e.g. almost real-time) interaction facilities. One may try to speed up the entire classical ...
    • VLSI Drawing Processor Utilizing Multiple ParallelScan-Line Processors 

      Denault, Damian; Ryherd, Eric; Torborg, John (The Eurographics Association, 1987)
      In a typical graphics system, a single drawing processor is used to perform pixel level drawing operations, one pixel at a time. A VLSI based drawing processor and image memory controller is presented which takes advantage ...
    • A Two-Dimensional Frame Buffer Processor 

      Kaufman, Arie (The Eurographics Association, 1987)
      The two-dimensional Frame Buffer Processor (FBP) is part of a proposed raster graphics computer architecture. It is a hardware-oriented organisation of a variation of a bitblt engine with a much richer repertoire. In ...
    • A Multiple Application Graphics Integrated CircuitMAGIC II 

      Finch, H.R; Agate, M.; Garel, A.A.; Lister, P.F.; Grimsdale, RL (The Eurographics Association, 1987)
      This paper describes the design considerations for a polygon graphics geometry processor subsystem. The architecture for a Multiple Application Graphics Integrated Circuit (MAGIC II) is outlined, and low, medium and high ...
    • Comparison of Two Floatin~Point Arithmetic Unitsfor a Precomputer in a Graphics System forReal Time Simulation 

      Möller, Reinhard (The Eurographics Association, 1987)
      This paper compares two realized concepts of floating point units in a visual system for a traffic simulator. The hardware structure of a Transformation Processor is described, with which a set of 1x4 vectors can be floating ...
    • 3D Graphics For Consumer Applications -How Realistic Does it Have to Be? 

      Winser, Paul (The Eurographics Association, 1987)
      The design of graphics Ie's for the consumer market has performance limitations imposed by the need to maintain low cost, and must be driven by consideration of the potential applications. The likely requirements for a ...
    • Ray Tracing Rational B-Spline Patches in VLSI 

      Schneider, Bengt-Olaf (The Eurographics Association, 1987)
      Rational B-spline surfaces make it possible to merge the concepts of freeform surfaces and that of surfaces described by rational polynomials especially conic sections. For ray tracing it is crucial to determine the ...
    • An O(log N) Parallel Time Exact Hidden-LineAlgorithm 

      Dévai, F. (The Eurographics Association, 1987)
      "Parallel algorithms are given for the exact solution of the hidden-line problem. Most of the parallel algorithms proposed for visibility problems in the literature give approximate solutions. and thus cannot yield an upper ...
    • Partially Ordered Search Indices in the Organizationof a Fixed Hierarchy 

      Skyttä, Jorma; Takala, Tapio (The Eurographics Association, 1987)
      "IntroductionThe mapping of even very advanced algorithms directly to hardware does not typically bring good results as these algorithms are originally designed for sequential processing. However, the power of the modern ...