203views Hardware» more  TVCG 2012»
7 years 8 months ago
Morse Set Classification and Hierarchical Refinement Using Conley Index
—Morse decomposition provides a numerically stable topological representation of vector fields that is crucial for their rigorous interpretation. However, Morse decomposition is ...
Guoning Chen, Qingqing Deng, Andrzej Szymczak, Rob...
187views Visualization» more  VLUDS 2010»
9 years 13 days ago
On Moving Least Squares Based Flow Visualization
Modern simulation and measurement methods tend to produce meshfree data sets if modeling of processes or objects with free surfaces or boundaries is desired. In Computational Flui...
Harald Obermaier, Martin Hering-Bertram, Jörg...
109views more  CGF 2010»
9 years 23 days ago
Time-Dependent 2-D Vector Field Topology: An Approach Inspired by Lagrangian Coherent Structures
This paper presents an approach to a time-dependent variant of the concept of vector field topology for 2-D vector fields. Vector field topology is defined for steady vector field...
Filip Sadlo, Daniel Weiskopf
137views Robotics» more  ICRA 2010»
9 years 3 months ago
Dipole-like fields for stabilization of systems with Pfaffian constraints
This paper introduces a framework that guides the design of stabilizing feedback control laws for systems with Pfaffian constraints. A new class of N-dimensional vector fields, the...
Dimitra Panagou, Herbert G. Tanner, Kostas J. Kyri...
84views more  JEI 2000»
9 years 5 months ago
Visualizing local vector field topology
The visualization of vector fields has attracted much attention over the last decade due to the vast variety of applications in science and engineering. Topological methods have b...
Gerik Scheuermann, Bernd Hamann, Kenneth I. Joy, W...
136views more  CGF 2002»
9 years 5 months ago
Designing 2D Vector Fields of Arbitrary Topology
We introduce a scheme of control polygons to design topological skeletons for vector fields of arbitrary topology. Based on this we construct piecewise linear vector fields of exa...
Holger Theisel
95views more  AUTOMATICA 2002»
9 years 5 months ago
Series expansions for analytic systems linear in control
This paper presents a series expansion for the evolution of a class of nonlinear systems characterized by constant input vector fields. We present a series expansion that can be c...
Francesco Bullo
178views more  TVCG 2008»
9 years 5 months ago
Animation of Orthogonal Texture Patterns for Vector Field Visualization
Abstract-- This paper introduces orthogonal vector field visualization on 2D manifolds: a representation by lines that are perpendicular to the input vector field. Line patterns ar...
Sven Bachthaler, Daniel Weiskopf
124views more  JMIV 2006»
9 years 5 months ago
Segmentation of a Vector Field: Dominant Parameter and Shape Optimization
Vector field segmentation methods usually belong to either of three classes: methods which segment regions homogeneous in direction and/or norm, methods which detect discontinuiti...
Tristan Roy, Eric Debreuve, Michel Barlaud, Gilles...
176views more  JMIV 2006»
9 years 5 months ago
Segmentation of Vectorial Image Features Using Shape Gradients and Information Measures
In this paper, we propose to focus on the segmentation of vectorial features (e.g. vector fields or color intensity) using region-based active contours. We search for a domain that...
Ariane Herbulot, Stéphanie Jehan-Besson, St...