Browsing Issue 3 by Title
Now showing items 12-31 of 41
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Egocentric Object Manipulation in Virtual Environments: Empirical Evaluation of Interaction Techniques
(Blackwell Publishers Ltd and the Eurographics Association, 1998)The acceptance of virtual environment (VE) technology requires scrupulous optimization of the most basic interactions in order to maximize user performance and provide efficient and enjoyable virtual interfaces. Motivated ... -
Emotion Editing using Finite Elements
(Blackwell Publishers Ltd and the Eurographics Association, 1998)This paper describes the prototype of a facial expression editor. In contrast to existing systems the presented editor takes advantage of both medical data for the simulation and the consideration of facial anatomy during ... -
An Enhanced Spring Model for Information Visualization
(Blackwell Publishers Ltd and the Eurographics Association, 1998)In this paper we present a new technique for visualizing multidimensional information. We describe objects of a higher dimensional information space as small closed free-form-surfaces in the visualization. The location, ... -
Fast Feature-Based Metamorphosis and Operator Design
(Blackwell Publishers Ltd and the Eurographics Association, 1998)Metamorphosis is a powerful visual technique, for producing interesting transition between two images or volume data. Image or volume metamorphosis using simple features provides flexible and easy control of visual effect. ... -
A Framework for Synchronized Editing of Multiple Curve Representations
(Blackwell Publishers Ltd and the Eurographics Association, 1998)Editing curves and surfaces is difficult in part because their mathematical representations rarely correspond to most peopleâ s idea of a curve or surface. The implementation (and hence, behavior) of most manipulation ... -
Frontiers in User-Computer Interaction
(Blackwell Publishers Ltd and the Eurographics Association, 1998)In this age of (near-)adequate computing power, the power and usability of the user interface is as key to an applicationâ s success as its functionality. Most of the code in modern desktop productivity applications resides ... -
Getting Rid of Links in Hierarchical Radiosity
(Blackwell Publishers Ltd and the Eurographics Association, 1998)Hierarchical radiosity with clustering has positioned itself as one of the most efficient algorithms for computing global illumination in non-trivial environments. However, using hierarchical radiosity for complex scenes ... -
Importance Driven Halftoning
(Blackwell Publishers Ltd and the Eurographics Association, 1998)Most halftoning techniques have been primarily concerned with achieving an accurate reproduction of local gray-scale intensities while avoiding the introduction of artifacts. A secondary concern in halftoning has been the ... -
Importance Driven Texture Coordinate Optimization
(Blackwell Publishers Ltd and the Eurographics Association, 1998)Traditionally, texture coordinates have been generated based solely on the modelâ s geometry, often even before a modelâ s textures have been created. With the arrival of new technologies, such as 3D paint programs, ... -
Interactive 3D Morphing
(Blackwell Publishers Ltd and the Eurographics Association, 1998)A new 3D morphing algorithm for polyhedral objects with the same genus is presented in the paper. Our main contribution is an efficient and general algorithm for setting up the vertex correspondence between the polyhedra. ... -
A Light Hierarchy for Fast Rendering of Scenes with Many Lights
(Blackwell Publishers Ltd and the Eurographics Association, 1998)We introduce a new data structure in the form of a light hierarchy for efficiently ray-tracing scenes with many light sources. An octree is constructed with the point light sources in a scene. Each node represents all the ... -
Mass-Spring Simulation using Adaptive Non-Active Points
(Blackwell Publishers Ltd and the Eurographics Association, 1998)This paper introduces an adaptive component to a mass-spring system as used in the modelling of cloth for computer animation. The new method introduces non-active points to the model which can adapt the shape of the cloth ... -
Maximum Intensity Projection Using Splatting in Sheared Object Space
(Blackwell Publishers Ltd and the Eurographics Association, 1998)In this paper we present a new Maximum Intensity Projection (MIP) algorithm which was implemented employing splatting in a shear-warp context. This algorithm renders a MIP image by first splatting each voxel on two ... -
Molecular Dynamics Simulation in Virtual Environments
(Blackwell Publishers Ltd and the Eurographics Association, 1998)A virtual environment for interactive molecular dynamics simulation has been designed and implemented at the Fraunhofer Institute for Computer Graphics. Different kinds of virtual reality devices are used in the environment ... -
Multiresolution Isosurface Extraction with Adaptive Skeleton Climbing
(Blackwell Publishers Ltd and the Eurographics Association, 1998)An isosurface extraction algorithm which can directly generate multiresolution isosurfaces from volume data is introduced. It generates low resolution isosurfaces, with 4 to 25 times fewer triangles than that generated by ... -
A New Approach for Direct Manipulation of Free-Form Curve
(Blackwell Publishers Ltd and the Eurographics Association, 1998)There is an increasing demand for more intuitive methods for creating and modifying free-form curves and surfaces in CAD modeling systems. The methods should be based not only on the change of the mathematical parameters, ... -
Optical Flow Rendering
(Blackwell Publishers Ltd and the Eurographics Association, 1998)This paper proposes a new approach to image-based rendering that generates an image viewed from an arbitrary camera position and orientation by rendering optical flows extracted from reference images. To derive valid optical ... -
Perception Based Color Image Difference
(Blackwell Publishers Ltd and the Eurographics Association, 1998)A good image metric is often needed in digital image synthesis. It can be used to check the convergence behavior in progressive methods, to compare images rendered using various rendering methods etc. Since images are ... -
Preface
(Blackwell Publishers Ltd and the Eurographics Association, 1998) -
Progressive Iso-Surface Extraction from Hierarchical 3D Meshes
(Blackwell Publishers Ltd and the Eurographics Association, 1998)A multiresolution data decomposition offers a fundamental framework supporting compression, progressive transmission, and level-of-detail (LOD) control for large two or three dimensional data sets discretized on complex ...