Uncertain 2D Vector Field Topology

11 years 8 months ago
Uncertain 2D Vector Field Topology
We introduce an approach to visualize stationary 2D vector fields with global uncertainty obtained by considering the transport of local uncertainty in the flow. For this, we extend the concept of vector field topology to uncertain vector fields by considering the vector field as a density distribution function. By generalizing the concepts of stream lines and critical points we obtain a number of density fields representing an uncertain topological segmentation. Their visualization as height surfaces gives insight into both the flow behavior and its uncertainty. We present a Monte Carlo approach where we integrate probabilistic particle paths, which lead to the segmentation of topological features. Moreover, we extend our algorithms to detect saddle points and present efficient implementations. Finally, we apply our technique to a number of real and synthetic test data sets.
Mathias Otto, Tobias Germer, Hans-Christian Hege,
Added 11 Mar 2010
Updated 15 Mar 2010
Type Conference
Year 2010
Authors Mathias Otto, Tobias Germer, Hans-Christian Hege, Holger Theisel
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