An Interpolation Scheme for VDVP Lagrangian Basis Flows

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dc.contributor.authorSane, Sudhanshuen_US
dc.contributor.authorChilds, Hanken_US
dc.contributor.authorBujack, Roxanaen_US
dc.contributor.editorChilds, Hank and Frey, Steffenen_US
dc.date.accessioned2019-06-02T18:26:09Z
dc.date.available2019-06-02T18:26:09Z
dc.date.issued2019
dc.description.abstractUsing the Eulerian paradigm, accurate flow visualization of 3D time-varying data requires a high temporal resolution resulting in large storage requirements. The Lagrangian paradigm has proven to be a viable in situ-based approach to tackle this large data visualization problem. However, previous methods constrained the generation of Lagrangian basis flows to the special case of fixed duration and fixed placement (FDFP), in part because reconstructing the flow field using these basis flows is trivial. Our research relaxes this constraint, by considering the general case of variable duration and variable placement (VDVP) with the goal of increasing the amount of information per byte stored. That said, reconstructing the flow field using VDVP basis flows is non-trivial; the primary contribution of our work is a method we call VDVP-Interpolation which solves this problem. VDVP-Interpolation reduces error propagation and limits interpolation error while using VDVP Lagrangian basis flows. As a secondary contribution of the work, we generate VDVP basis flows for multiple data sets and demonstrate improved accuracy-storage propositions compared to previous work. In some cases, we demonstrate up to 40-60% more accurate pathline calculation while using 50% less data storage.en_US
dc.description.sectionheadersSession 4
dc.description.seriesinformationEurographics Symposium on Parallel Graphics and Visualization
dc.identifier.doi10.2312/pgv.20191115
dc.identifier.isbn978-3-03868-079-6
dc.identifier.issn1727-348X
dc.identifier.pages109-119
dc.identifier.urihttps://doi.org/10.2312/pgv.20191115
dc.identifier.urihttps://diglib.eg.org:443/handle/10.2312/pgv20191115
dc.publisherThe Eurographics Associationen_US
dc.subjectComputing methodologies
dc.subjectScientific visualization
dc.titleAn Interpolation Scheme for VDVP Lagrangian Basis Flowsen_US
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EGPGV19: Eurographics Symposium on Parallel Graphics and Visualization