Browsing VisSym01: Joint Eurographics - IEEE TCVG Symposium on Visualization by Title
Now showing items 9-28 of 33
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Fast Multiresolution Extraction of Multiple Transparent Isosurfaces
(The Eurographics Association, 2001)In this paper, we present a multiresolution algorithm which is capable to render multiple transparent isosurfaces under real time constraints. To this end, the underlying 3D data set is covered with a hierarchical tetrahedral ... -
A Hardware-Assisted Visibility-Ordering Algorithm With Applications To Volume Rendering
(The Eurographics Association, 2001)We propose a hardware-assisted visibility ordering algorithm. From a given viewpoint, a (back-to-front) visibility ordering of a set of objects is a partial order on the objects such that if object A obstructs object B, ... -
I/O-Conscious Volume Rendering
(The Eurographics Association, 2001)Most existing volume rendering algorithms assume that data sets are memory-resident and thus ignore the performance overhead of disk I/O. While this assumption may be true for high-performance graphics machines, it does ... -
Improved visualization in virtual colonoscopy using image-based rendering
(The Eurographics Association, 2001)Virtual colonoscopy (VC) is a patient-friendly alternative for colorectal endoscopic examination. We explore visualization aspects of VC such as surface in view, navigation and communication of a diagnosis. A series of ... -
Interacting with Stock Market Data in a Virtual Environment
(The Eurographics Association, 2001)Virtual Environment technology enables new styles of user interfaces that provide multi-sensory interactions. For example, interfaces can be designed which immerse the user in a 3D space and provide multi-sensory feedback. ... -
Interactive and Multi-modal Visualization for Neuroendoscopic Interventions
(The Eurographics Association, 2001)Based on the VIVENDI-framework for virtual endoscopy, we present a system for the interactive and multi-modal representation of important anatomical structures for neuroendoscopic interventions. A serious problem of ... -
Multiresolution Maximum Intensity Volume Rendering by Morphological Pyramids
(The Eurographics Association, 2001)We propose a multiresolution representation for maximum intensity projection (MIP) volume rendering, based on morphological pyramids which allow progressive refinement and have the property of perfect reconstruction. The ... -
Nonlinear Diffusion in Graphics Hardware
(The Eurographics Association, 2001)Multiscale methods have proved to be successful tools in image denoising, edge enhancement and shape recovery. They are based on the numerical solution of a nonlinear diffusion problem where a noisy or damaged image which ... -
Preserving the Mental Map using Foresighted Layout
(The Eurographics Association, 2001)First we introduce the concept of graph animations as a sequence of evolving graphs and a generic algorithm which computes a Foresighted Layout for dynamically drawing these graphs while preserving the mental map. The ... -
Progressive View-Dependent Isosurface Propagation
(The Eurographics Association, 2001)This paper proposes a new isosurface extraction algorithm that extracts portions of the isosurface in a view-dependent manner by ray casting and propagation. The algorithm casts rays through a volume to find visible active ... -
The Rendering of Unstructured Grids Revisited
(The Eurographics Association, 2001)In this paper we propose a technique for resampling scalar fields given on unstructured tetrahedral grids. This technique takes advantage of hardware accelerated polygon rendering and 2D texture mapping and thus avoids any ... -
Salient Representation of Volume Data
(The Eurographics Association, 2001)We introduce a novel method for identification of objects of interest in volume data. Our approach conveys the information contained in two essentially different concepts, the object s boundaries and the narrow solid ... -
A Selective Refinement Approach for Computing the Distance Functions of Curves
(The Eurographics Association, 2001)We present an adaptive signed distance transform algorithm for curves in the plane. A hierarchy of bounding boxes is required for the input curves. We demonstrate the algorithm on the isocontours of a turbulence simulation. ... -
Space-Efficient Boundary Representation of Volumetric Objects
(The Eurographics Association, 2001)In this paper we present a compression technique for efficiently representing boundary objects from volumetric data-sets. Exploiting spatial coherency within object contours, we are able to reduce the size of the volumetric ... -
Stream Surface Generation for Fluid Flow Solutions on Curvilinear Grids
(The Eurographics Association, 2001)A stream surface in a steady-state three-dimensional fluid flow vector field is a surface across which there is no flow. Stream surfaces can be useful for visualization because the amount of data presented in one visualization ... -
Subdivision Surfaces for Scattered-data Approximation
(The Eurographics Association, 2001)We propose a modified Loop subdivision surface scheme for the approximation of scattered data in the plane. Starting with a triangulated set of scattered data with associated function values, our scheme applies linear, ... -
Three-dimensional Reconstruction and Visualization of the Cerebral Cortex in Primates
(The Eurographics Association, 2001)We present a prototype interactive application for the direct analysis in three dimensions of the cerebral cortex in primates. The paper provides an overview of the current prototype system and presents the techniques used ... -
Topology-Based Visualization of Time-Dependent 2D Vector Fields
(The Eurographics Association, 2001)Topology-based methods have been successfully applied to the visualization of instantaneous planar vector fields. In this paper, we present the topology-based visualization of time-dependent 2D flows. Our method tracks ... -
Vector and Tensor Field Topology Simplification on Irregular Grids
(The Eurographics Association, 2001)Topology-based visualization of planar turbulent flows results in visual clutter due to the presence of numerous features of very small scale. In this paper, we attack this problem with a topology simplification method for ... -
Virtual Colon Flattening
(The Eurographics Association, 2001)We present a new method to visualize virtual endoscopic views. We propose to flatten the organ by the direct projection of the surface onto a set of cylinders. Two sampling strategies are presented and the introduced ...