Search
Now showing items 11-20 of 345
A New Algorithm of Space Tracing Using a CSG Model
(Eurographics Association, 1987)
This paper describes a new algorithm of space tracing. Scenes are modeled by a CSG tree. Space is subdivided regularly into 3D regions called boxes. With each box is associated a subtree which is the restriction of the ...
EXTENDING GKS TO A DISTRIBUTED ARCHITECTURE
(The Eurographics Association, 1985)
The recently adopted standards in the fields of computer networks and computer graphics has given to the opportunity to start a project to develop a distributed model of the Graphical Kernel System (GKS). The aim of this ...
NEM: A LANGUAGE FOR ANIMATION OF ACTORS AND OBJECTS
(The Eurographics Association, 1985)
The animation of actors and objects is considered in the framework of knowledge representation, with particular regard to motor knowledge. In our opinion, a formal model for motor knowledge should fill a gap between action ...
A VLSI Chip for Ray Tracing Bicubic Patches
(Eurographics Association, 1989)
This paper deals with the integration of a VLSI chip dedicated to ray tracing bicubic patches. A recursive subdivision algorithm is embedded in this chip. The recursion stops when the termination conditions are met. A ...
Photogrammetric Stereocompilation Supported by Interactive Computer Graphics (Abstract)
(The Eurographics Association, 1983)
A single-user computer graphics supported stereophotogrammetric digitizing system is presented in its intermediate experimental state. Essential system component is a Tektronix 4054 graphics desk-top computer connected to ...
A Shareable Centralised Database of KRT3 - A Hierarchical Graphics System Based on PHIGS
(Eurographics Association, 1987)
The Programmer’s Hierarchical Interactive Graphics System (PHIGS), currently under development by ISO, is a specification of a set of functions for device-independent computer graphics programming, supporting dynamic ...
BICEPS - THE INTERACTIVE GRAPHICS AIDED SYSTEM FOR BI-DIMENSIONAL GEOMETRY YODELING, NESTING AND FLAME CUTTING TECHNOLOGY
(The Eurographics Association, 1985)
An essential condition for effective usage of numerically controlled devices is their correct and efficient programming. Especially in cutting applications every nesting layout requires a new control program tape. The ...
AN APPROACH TO A CALCULATION-MINIMIZED HIDDEN LINE ALGORITHM
(The Eurographics Association, 1981)
Hidden line algorithms based on picture primitives only cannot recognize the areas of a picture completely visible or invisible. By testing each primitive of these areas they produce an overhead of calculations. Moreover ...
Optimal Texture Mapping
(Eurographics Association, 1988)
Texture mapping is one of the most important techniques for highquality image synthesis. It can enhance immensely the visual richness of raster-scan images. We address in this paper the problem of mapping planar texture ...
A FAST ALGORITHM FOR COLOUR REGION SEGMENTATION
(The Eurographics Association, 1982)
An algorithm is described which analyses colour scenes in terms of regions. These regions are defined to have the same 'colour'. In this context the colour of a region is determined by its position in the CIE chromaticity ...