Browsing Issue 3 by Issue Date
Now showing items 1-20 of 41
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Orthogonal Decomposition of Non-Uniform Bspline Spaces using Wavelets
(Blackwell Publishers Ltd and the Eurographics Association, 1997)We take advantage of ideas of an orthogonal wavelet complement to produce multiresolution orthogonal decomposition of nonuniform Bspline (NUB) spaces. The editing of NUB curves and surfaces can be handled at different ... -
A Million Polygons, a Million Pixels: Which is Heavier?
(Blackwell Publishers Ltd and the Eurographics Association, 1997)The impressive progress of rendering software and hardware over the last two decades often leads to the - too rapid - conclusion that high-quality 3D imagery can now be incorporated in all sorts of applications. Interestingly, ... -
Interactive Boundary Computation of Boolean Combinations of Sculptured Solids
(Blackwell Publishers Ltd and the Eurographics Association, 1997)We present algorithms and systems for interactive boundary computation of Boolean combinations of sculptured solids. The algorithm is applicable to all spline solids and computes an accurate boundary representation. To ... -
Interactive Rendering of Deforming NURBS Surfaces
(Blackwell Publishers Ltd and the Eurographics Association, 1997)Non-uniform rational B-splines (NURBS) has been widely accepted as a standard tool for geometry representation and design. Its rich geometric properties allow it to represent both analytic shapes and free-form curves and ... -
Polyhedral Surface Modeling with a Diffusion System
(Blackwell Publishers Ltd and the Eurographics Association, 1997)This paper presents a method of generating polyhedral surfaces by using a diffusion system that calculates the positional and normal vectors on their vertices. The system generates smooth shapes that satisfy the minimum ... -
Animation by Deformation of Space-Time Objects
(Blackwell Publishers Ltd and the Eurographics Association, 1997)This article presents the properties of animation with space-time objects. A space-time object means here a geometrical object embedded in R4 with a volumic topology. Resulting animations are obtained by deforming space-time ... -
The Personal Interaction Panel - a Two-Handed Interface for Augmented Reality
(Blackwell Publishers Ltd and the Eurographics Association, 1997)This paper describes the introduction of a new interaction paradigm to augmented reality applications. The everyday tool handling experience of working with pen and notebooks is extended to create a three dimensional ... -
A Modeling and Rendering Method for Snow by Using Metaballs
(Blackwell Publishers Ltd and the Eurographics Association, 1997)The display of natural scenes such as mountains, trees, the earth as viewed from space, the sea, and waves have been attempted. Here a method to realistically display snow is proposed.In order to achieve this, two important ... -
Computing Volumes of Solids Enclosed by Recursive Subdivision Surfaces
(Blackwell Publishers Ltd and the Eurographics Association, 1997)The volume of a solid enclosed by a recursive subdivision surface can be approximated based on the closed-form representation of regular parts of the subdivision surface and a tight estimate of the local convex hull near ... -
Automatic Hierarchical Level of Detail Optimization in Computer Animation
(Blackwell Publishers Ltd and the Eurographics Association, 1997)We show that the hierarchical level of detail optimization problem is equivalent to a constrained version of the Multiple Choice Knapsack Problem, and present a new algorithm whose solution to it is at least half as good ... -
Building Telepresence Systems: Translating Science Fiction Ideas into Reality
(Blackwell Publishers Ltd and the Eurographics Association, 1997)Many people feel that at some time in the distant future it will be possible to see and interact with remote individuals so realistically that they will appear to be standing next to us, that it will also be possible for ... -
A Multiscale Approach to Integrated Volume Segmentation and Rendering
(Blackwell Publishers Ltd and the Eurographics Association, 1997)A number of techniques have been proposed for rendering volumetric scalar data sets. Techniques have also been proposed for analyzing the three dimensional information contents of the underlying domain, but traditionally ... -
Using Subdivision on Hierarchical Data to Reconstruct Radiosity Distribution
(Blackwell Publishers Ltd and the Eurographics Association, 1997)Computing global illumination by finite element techniques usually generates a piecewise constant approximation of the radiosity distribution on surfaces. Directly displaying such scenes generates artefacts due to ... -
Normal Computation for Discrete Surfaces in 3D Space
(Blackwell Publishers Ltd and the Eurographics Association, 1997)Associating normal vectors to surfaces is essential for many rendering algorithms. We introduce a new method to compute normals on discrete surfaces in object space. Assuming that the surface separates space locally into ... -
Modelling the Garden of Perfect Brightness
(Blackwell Publishers Ltd and the Eurographics Association, 1997)The Yuan Ming Yuan, the Garden of Perfect Brightness, was the culmination of the art of Chinese Imperial gardens. Covering 350 hectares (875 acres) northwest of Beijing, it included 140 distinct sites, 2000 structures, ... -
Deformable Surface Techniques for Field Visualization
(Blackwell Publishers Ltd and the Eurographics Association, 1997)Surface extraction from data fields is often used in scientific visualization, as surfaces can represent meaningful information and they are well suited for display. This paper describes a general method for localized ... -
Radiosity with Well Distributed Ray Sets
(Blackwell Publishers Ltd and the Eurographics Association, 1997)In this paper we present a new radiosity algorithm, based on the notion of a well distributed ray set (WDRS). A WDRS is a set of rays, connecting mutually visible points and patches, that forms an approximate representation ... -
Selective Pixel Transmission for Navigating in Remote Virtual Environments
(Blackwell Publishers Ltd and the Eurographics Association, 1997)This paper presents a technique to improve the performance of a walkthrough in remote virtual environments, where a scene is rendered jointly by the server and the client, in order to reduce the network requirements as ... -
Compression Domain Volume Rendering for Distributed Environments
(Blackwell Publishers Ltd and the Eurographics Association, 1997)This paper describes a method for volume data compression and rendering which bases on wavelet splats. The underlying concept is especially designed for distributed and networked applications, where we assume a remote ... -
A Procedural Description of Geometric Textures by Spectral and Spatial Analysis of Profiles
(Blackwell Publishers Ltd and the Eurographics Association, 1997)In this paper we describe a method for automatically generating procedural "geometric" textures, using a hybrid (spectral and spatial) analysis of profiles (ID curves). The profile describes a certain height variation for ...