Browsing VisSym03: Joint Eurographics - IEEE TCVG Symposium on Visualization by Title
Now showing items 1-20 of 30
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Accelerated Force Computation for Physics-Based Information Visualization
(The Eurographics Association, 2003)Visualization of similarity is an emerging technique for analyzing relation-based data sets. A common way of computing the respective layouts in an information space is to employ a physics-based mass-spring system. Force ... -
Adaptive Smooth Scattered-data Approximation for Large-scale Terrain Visualization
(The Eurographics Association, 2003)We present a fast method that adaptively approximates large-scale functional scattered data sets with hierarchical B-splines. The scheme is memory efficient, easy to implement and produces smooth surfaces. It combines ... -
Analysis of the HDAF for Interpolation and Noise Suppression in Volume Rendering
(The Eurographics Association, 2003)In this paper, we evaluate the HDAF (Hermite Distributed Approximating Functionals) family of interpolation and derivative functions, with respect to their accuracy for reliable volume rendering, and compare them with other ... -
Anti-Aliased Volume Extraction
(The Eurographics Association, 2003)We present a technique to extract regions from a volumetric dataset without introducing any aliasing so that the extracted volume can be explored using direct volume rendering techniques. Extracting regions using binary ... -
Case Study: Cellar Scaffold Extraction Using Crest Point for Volume Rendering
(The Eurographics Association, 2003)Extraction of scaffolds, such as the meiotic spindles, a 3D tubular framework consisting of the microtubules, from conforcal laser scanning microscopy (CLSM) data of a cell is a challenge in biological image processing. ... -
Case Study: Comparing Two Methods for Filtering External Motion in 4D Confocal Microscopy Data
(The Eurographics Association, 2003)In this case study, we compare two methods for filtering external motion in time dependent volume data sets acquired from confocal microscopy. The pros and cons of a landmark based and a voxel based method are discussed. ... -
Contouring Curved Quadratic Elements
(The Eurographics Association, 2003)We show how to extract a contour line (or isosurface) from quadratic elements - specifically from quadratic triangles and tetrahedra. We also devise how to transform the resulting contour line (or surface) into a quartic ... -
Detecting Critical Regions in Scalar Fields
(The Eurographics Association, 2003)Trivariate data is commonly visualized using isosurfaces or direct volume rendering. When exploring scalar fields by isosurface extraction it is often difficult to choose isovalues that convey "useful" information. The ... -
Detection of constrictions on closed polyhedral surfaces
(The Eurographics Association, 2003)We define constrictions on a surface as simple closed geodesic curves, i.e. curves whose length is locally minimal. They can be of great interests in order to cut the surface in smaller parts. In this paper, we present a ... -
Efficient Visualization of Large Medical Image Datasets on Standard PC Hardware
(The Eurographics Association, 2003)Fast and accurate algorithms for medical image processing and visualization are becoming increasingly important due to routine acquisition and processing of rapidly growing amounts of data in clinical practice. At the same ... -
Feature Flow Fields
(The Eurographics Association, 2003)Feature tracking algorithms for instationary vector fields are usually based on a correspondence analysis of the features at different time steps. This paper introduces a method for feature tracking which is based on the ... -
Hardware-assisted View-dependent Isosurface Extraction using Spherical Partition
(The Eurographics Association, 2003)Extracting only the visible portion of an isosurface can improve both the computation efficiency and the rendering speed. However, the visibility test overhead can be quite high for large scale data sets. In this paper, ... -
Hierarchical Isosurface Segmentation Based on Discrete Curvature
(The Eurographics Association, 2003)A high-level approach to describe the characteristics of a surface is to segment it into regions of uniform curvature behavior and construct an abstract representation given by a (topology) graph. We propose a surface ... -
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 ...