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Now showing items 11-20 of 33
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, ...
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 ...
Visualization of Generalized Voronoi Diagrams
(The Eurographics Association, 2001)
Voronoi diagrams are an important data structure in computer science. However well studied mathematically, understanding such diagrams for different metrics, orders, and site shapes is a complex task. We propose a new ...
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 ...
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 ...
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. ...
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 ...
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 ...
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 ...