Search
Now showing items 1-10 of 61
Contextual Visualization of Actor Status in Social Networks
(The Eurographics Association, 2000)
We propose a novel information visualization approach for an analytical method applied in the social sciences. In social network analysis, social structures are formally represented as graphs, and structural properties of ...
Hierarchical Data Representations Based on Planar Voronoi Diagrams
(The Eurographics Association, 2000)
Multiresolution representation of high-dimensional scattered data is a fundamental problem in scientific visualization. This paper introduces a data hierarchy of Voronoi diagrams as a versatile solution. Given an arbitrary ...
The Interaction Between Individuals' Immersive Tendencies and the Sensation of Presence in a Virtual Environment
(The Eurographics Association, 2000)
Witmer and Singer have developed a questionnaire for presence (PQ) as well as an immersive tendencies questionnaire (ITQ). Their research has shown that ITQ scores are positively correlated with PQ scores. This paper reports ...
Single-Pass Full-Screen Hardware Accelerated Antialiasing
(The Eurographics Association, 2000)
This paper describes a modified A-buffer algorithm and its hardware architecture for single-pass full-screen antialiasing. For storage and management of fragments, a dynamic memory management scheme, which can be efficiently ...
Improving Angular Resolution in Visualizations of Geographic Networks
(The Eurographics Association, 2000)
In visualizations of large-scale transportation and communications networks, node coordinates are usually fixed to preserve the underlying geography, while links are represented as geodesics for simplicity. This often leads ...
WWW-based Visualization of the Real Time Run of a Space Weather Forecasting Model
(The Eurographics Association, 2000)
As use of earth-orbiting space technology increases, so does the need to understand and forecast the space weather. The University of Alaska Fairbanks Eulerian Parallel Polar Ionosphere Model (UAF EPPIM) is a first principles ...
Very Large Scale Visualization Methods for Astrophysical Data
(The Eurographics Association, 2000)
We address the problem of interacting with scenes that contain a very large range of scales. Computer graphics environments normally deal with only a limited range of orders of magnitude before numerical error and other ...
Towards Hardware Implementation Of Loop Subdivision
(The Eurographics Association, 2000)
We present a novel algorithm to evaluate and render Loop subdivision surfaces. The algorithm exploits the fact that Loop subdivision surfaces are piecewise polynomial and uses the forward difference technique for efficiently ...
Towards Interactive Bump Mapping with Anisotropic Shift-Variant BRDFs
(The Eurographics Association, 2000)
In this paper a technique is presented that combines interactive hardware accelerated bump mapping with shift-variant anisotropic reflectance models. An evolutionary path is shown how some simpler reflectance models can ...
The RACE II Engine for Real-Time Volume Rendering
(The Eurographics Association, 2000)
In this paper, we present the RACE II Engine, which uses a hybrid volume rendering methodology that combines algorithmic and hardware acceleration to maximize ray casting performance relative the total amount of volume ...