Hierarchical vorticity skeletons

Sebastian Eberhardt, Ulrich Pinkall, Steffen Weissmann, Nils Thuerey

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

We propose a novel method to extract hierarchies of vortex filaments from given three-dimensional how velocity fields. We call these collections of filaments Hierarchical Vorticity Skeletons (HVS). They extract multi-scale information from the input velocity field, which is not possible with any previous filament extractionapproach. Once computed, these HVSs provide a powerful mechanism for data compression and a very natural way for modifying flows. The data compression rates for all presented examples are above 99%. Employing our skeletons for flow modification has several advantages over traditional approaches. Most importantly, they reduce the complexity of three-dimensional fields to one-dimensional lines and, make complex fluid data more accessible for changing defining features of a flow. The strongly reduced HVS dataset still carries the main characteristics of the flow. Through the hierarchy we can capture the main features of different scales in the flow and by that provide a level of detail control. In contrast to previous

Original languageEnglish
Title of host publicationProceedings - SCA 2017
Subtitle of host publicationACM SIGGRAPH / Eurographics Symposium on Computer Animation
EditorsStephen N. Spencer
PublisherAssociation for Computing Machinery, Inc
ISBN (Electronic)9781450350914
DOIs
StatePublished - 28 Jul 2017
Event16th ACM SIGGRAPH / Eurographics Symposium on Computer Animation, SCA 2017 - Los Angeles, United States
Duration: 28 Jul 201730 Jul 2017

Publication series

NameProceedings - SCA 2017: ACM SIGGRAPH / Eurographics Symposium on Computer Animation

Conference

Conference16th ACM SIGGRAPH / Eurographics Symposium on Computer Animation, SCA 2017
Country/TerritoryUnited States
CityLos Angeles
Period28/07/1730/07/17

Keywords

  • Compression
  • Flow Guiding
  • Scale separation
  • Vortex filaments

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