Browsing VisSym03: Joint Eurographics - IEEE TCVG Symposium on Visualization by Title
Now showing items 14-30 of 30
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Improving Topological Segmentation of Three-dimensional Vector Fields
(The Eurographics Association, 2003)We present three enhancements to accelerate the extraction of separatrices of three-dimensional vector fields, using intelligently selected "sample" streamlines. These enhancements reduce the number of needed sample ... -
Interaction of Light and Tensor Fields
(The Eurographics Association, 2003)We present three new ways of looking at tensor volumes. All three methods are based on the interaction of simulated light and the tensor field. Conceptually, rays are shot from a certain direction into the tensor volume. ... -
Interactive Feature Specification for Focus+Context Visualization of Complex Simulation Data
(The Eurographics Association, 2003)Visualization of high-dimensional, large data sets, resulting from computational simulation, is one of the most challenging fields in scientific viualization. When visualization aims at supporting the analysis of such data ... -
ISOSLIDER: A System for Interactive Exploration of Isosurfaces
(The Eurographics Association, 2003)We present ISOSLIDER, a system for interactive exploration of isosurfaces of a scalar field. Our algorithm focuses on fast update of isosurfaces for interactive display as a user makes small changes to the isovalue of the ... -
Isosurfaces on Optimal Regular Samples
(The Eurographics Association, 2003)Volumetric samples on Cartesian lattices are less efficient than samples on body-centred cubic (BCC) lattices. We show how to construct isosurfaces on BCC lattices using several different algorithms. Since the mesh that ... -
MCMR: A Fluid View on Time Dependent Volume Data
(The Eurographics Association, 2003)Mass Conservative Motion Reconstruction is a new method for estimating motion in time dependent volume data. A time dependent vector field representing the movement of the data is computed from a sequence of scalar volume ... -
Path Seeds and Flexible Isosurfaces Using Topology for Exploratory Visualization
(The Eurographics Association, 2003)Morse theory and the Reeb graph give topological summaries of the behaviour of continuous scalar functions. The contour tree augments the Reeb graph for the isosurfaces in a volume to store seed sets, which are starting ... -
Post-Convolved Splatting
(The Eurographics Association, 2003)One of the most expensive operations in volume rendering is the interpolation of samples in volume space. The number of samples, in turn, depends on the resolution of the final image. Hence, viewing the volume at high ... -
Rendering Vector Data over Global, Multi-resolution 3D Terrain
(The Eurographics Association, 2003)Modern desktop PCs are capable of taking 2D Geographic Information System (GIS) applications into the realm of interactive 3D virtual worlds. In prior work we developed and presented graphics algorithms and data management ... -
A Robust Level-Set Algorithm for Centerline Extraction
(The Eurographics Association, 2003)We present a robust method for extracting 3D centerlines from volumetric datasets. We start from a 2D skeletonization method to locate voxels centered with respect to three orthogonal slicing directions. Next, we introduce ... -
ShellSplatting: Interactive Rendering of Anisotropic Volumes
(The Eurographics Association, 2003)This work presents an extension of shell rendering that is more flexible and yields higher quality volume renderings. Shell rendering consists of efficient data-structures and methods to manipulate and render structures ... -
Shrouds: Optimal Separating Surfaces for Enumerated Volumes
(The Eurographics Association, 2003)We describe new techniques for computing a smooth triangular mesh surface that surrounds an enumerated volume consisting of a collection of points from a 3D rectilinear grid. The surface has the topology of an isosurface ... -
Smart Hardware-Accelerated Volume Rendering
(The Eurographics Association, 2003)For volume rendering of regular grids the display of view-plane aligned slices has proven to yield both good quality and performance. In this paper we demonstrate how to merge the most important extensions of the original ... -
Using Graphs for Fast Error Term Approximation of Time-varying Datasets
(The Eurographics Association, 2003)We present a method for the efficient computation and storage of approximations of error tables used for error estimation of a region between different time steps in time-varying datasets. The error between two time steps ... -
Vector Field Visualization using Markov Random Field Texture Synthesis
(The Eurographics Association, 2003)Vector field visualization aims at generating images in order to convey the information existing in the data. We use Markov Random Field (MRF) texture synthesis methods to generate the visualization from a set of sample ... -
Visual Hierarchical Dimension Reduction for Exploration of High Dimensional Datasets
(The Eurographics Association, 2003)Traditional visualization techniques for multidimensional data sets, such as parallel coordinates, glyphs, and scatterplot matrices, do not scale well to high numbers of dimensions. A common approach to solving this problem ... -
Visualizing Spatial Distribution Data Sets
(The Eurographics Association, 2003)In this paper, we define distributions as a new data type and address the challenges of visualizing spatial distribution data sets. Numerous visualization techniques exist today for dealing with scalar data. That is, there ...