Browsing Issue 3 by Title
Now showing items 1-20 of 39
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An Adaptive Spatial Subdivision of the Object Space for Fast Collision Detection of Animated Rigid Bodies
(Blackwell Science Ltd and the Eurographics Association, 1995)Collision detection tests between objects dominate run time simulation of rigid body animation. Traditionally, hierarchical bounding box tests are used to minimize collision detection time. But the bounding boxes do not ... -
Algorithms for Extracting Correct Critical Points and Constructing Topological Graphs from Discrete Geographical Elevation Data
(Blackwell Science Ltd and the Eurographics Association, 1995)Researchers in the fields of computer graphics and geographical information systems (GISs) have extensively studied the methods of extracting terrain features such as peaks, pits, passes, ridges, and ravines from discrete ... -
Automatic Reconstruction of Unstructured 3D Data: Combining a Medial Axis and Implicit Surfaces
(Blackwell Science Ltd and the Eurographics Association, 1995)This paper presents a new method that combines a medial axis and implicit surfaces in order to reconstruct a 3D solid from an unstructured set of points scattered on the object s surface. The representation produced is ... -
A Direct Manipulation Interface for 3D Computer Animation
(Blackwell Science Ltd and the Eurographics Association, 1995)We present a new set of interface techniques for visualizing and editing animation directly in a single three-dimensional scene. Motion is edited using direct-manipulation tools which satisfy high-level goals such as"reach ... -
Discrete Ray-Tracing of Huge Voxel Spaces
(Blackwell Science Ltd and the Eurographics Association, 1995)The quality of images produced by Discrete Ray-Tracing voxel spaces is highly dependent on 3d grid resolution. The huge amount of memory needed to store such grids often discards discrete Ray-Tracing as a practical ... -
Distributed Augmented Reality for Collaborative Design Applications
(Blackwell Science Ltd and the Eurographics Association, 1995)This paper presents a system for constructing collaborative design applications based on distributed augmented reality. Augmented reality interfaces are a natural method for presenting computer-based design by merging ... -
Fair Surface Reconstruction Using Quadratic Functionals
(Blackwell Science Ltd and the Eurographics Association, 1995)An algorithm for surface reconstruction from a polyhedron with arbitrary topology consisting of triangular faces is presented. The first variant of the algorithm constructs a curve network consisting of cubic Bezier curves ... -
Fast Shadowing Algorithm for Linear Light Sources
(Blackwell Science Ltd and the Eurographics Association, 1995)This paper presents a fast shadowing algorithm for linear light sources that uses a ray-oriented buffer. Space segmentation by the buffer guarantees that if a point is included in a subspace, all light rays toward the point ... -
Fast Wavelet Based Volume Rendering by Accumulation of Transparent Texture Maps
(Blackwell Science Ltd and the Eurographics Association, 1995)In the following paper, a new method for fast and accurate volume intensity and color integration is elaborated, which employs wavelet decompositions and texture mapping. At this point, it comprises and unifies the advantages ... -
Filtering, Clustering and Hierarchy Construction: a New Solution for Ray-Tracing Complex Scenes
(Blackwell Science Ltd and the Eurographics Association, 1995)Data structures that handle very complex scenes (hundreds of thousands of objects) have in the past either been laboriously built by hand, or have required the determination of unintuitive parameter values by the user. It ... -
Generating a Texture Map from Object-Surface Texture Data
(Blackwell Science Ltd and the Eurographics Association, 1995)A number of 3D digitizing methods, including stereopsis, are capable of measuring not only an object s shape but also its surface texture. Measured shape data can be expressed as a polyhedron whose faces are triangular, ... -
A Graph-Based Approach to Surface Reconstruction
(Blackwell Science Ltd and the Eurographics Association, 1995)A new approach to the reconstruction of a surface from an unorganized set of points in space is presented. The point set may for example be obtained with a laser scanner or a manual digitizing tool, and is the only source ... -
The HUMANOID Environment for Interactive Animation of Multiple Deformable Human Characters
(Blackwell Science Ltd and the Eurographics Association, 1995)We describe the HUMANOID environment dedicated to human modeling and animation for general multimedia, VR, and CAD applications integrating virtual humans. We present the design of the system and the integration of the ... -
An Incremental Alignment Algorithm for Parallel Volume Rendering
(Blackwell Science Ltd and the Eurographics Association, 1995)This paper introduces a data distribution scheme and an alignment algorithm for parallel volume rendering. The algorithm performs a single wrap-around shear transformation which requires only a regular inter-processor ... -
The MADE Help System
(Blackwell Science Ltd and the Eurographics Association, 1995)MADE is the acronym for the ESPRIT project 6307, whose aim is to develop an object oriented multimedia application development environment. As part of this project the MADE help system is designed to be a distributed ... -
Modeling 3D Curves of Minimal Energy
(Blackwell Science Ltd and the Eurographics Association, 1995)Modeling a curve through minimizing its energy yields an overall smooth curve. A common way to model shape features is to perform the minimization subject to a number of interpolation constraints. This way of modeling is ... -
Morphological Operations for Color-Coded Images
(Blackwell Science Ltd and the Eurographics Association, 1995)The subject of this paper is the semantically based postprocessing of color-coded images such as classification results. We outline why the classical definition of mathematical morphology suffers if it is used for processing ... -
A Multimedia Constraint System1
(Blackwell Science Ltd and the Eurographics Association, 1995)The MADE constraint system provides excellent opportunities to introduce constraints in a multimedia application. Multimedia applications are not only a good place to experiment with constraint systems- constraints in a ... -
Multiresolution B-spline Radiosity
(Blackwell Science Ltd and the Eurographics Association, 1995)This paper introduces a kind of new wavelet radiosity method called multiresolution B-spline radiosity, which uses B-splines of different scales to represent radiosity distribution functions. A set of techniques and ... -
A new radiosity approach for regular objects: application to ruled surfaces
(Blackwell Science Ltd and the Eurographics Association, 1995)This paper introduces a new approach in the radiosity method. The main principle applied here, is the improvement of form factor computation by the knowledge of the model properties. More precisely, if surfaces describing ...