From capture to simulation: connecting forward and inverse problems in fluids

Handle URI:
http://hdl.handle.net/10754/556542
Title:
From capture to simulation: connecting forward and inverse problems in fluids
Authors:
Gregson, James; Ihrke, Ivo; Thuerey, Nils; Heidrich, Wolfgang ( 0000-0002-4227-8508 )
Abstract:
We explore the connection between fluid capture, simulation and proximal methods, a class of algorithms commonly used for inverse problems in image processing and computer vision. Our key finding is that the proximal operator constraining fluid velocities to be divergence-free is directly equivalent to the pressure-projection methods commonly used in incompressible flow solvers. This observation lets us treat the inverse problem of fluid tracking as a constrained flow problem all while working in an efficient, modular framework. In addition it lets us tightly couple fluid simulation into flow tracking, providing a global prior that significantly increases tracking accuracy and temporal coherence as compared to previous techniques. We demonstrate how we can use these improved results for a variety of applications, such as re-simulation, detail enhancement, and domain modification. We furthermore give an outlook of the applications beyond fluid tracking that our proximal operator framework could enable by exploring the connection of deblurring and fluid guiding.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
From capture to simulation: connecting forward and inverse problems in fluids 2014, 33 (4):1 ACM Transactions on Graphics
Publisher:
Association for Computing Machinery (ACM)
Conference/Event name:
41st International Conference and Exhibition on Computer Graphics and Interactive Techniques, ACM SIGGRAPH 2014
Issue Date:
27-Jul-2014
DOI:
10.1145/2601097.2601147
Type:
Conference Paper
ISSN:
07300301
Additional Links:
http://dl.acm.org/citation.cfm?doid=2601097.2601147
Appears in Collections:
Conference Papers; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorGregson, Jamesen
dc.contributor.authorIhrke, Ivoen
dc.contributor.authorThuerey, Nilsen
dc.contributor.authorHeidrich, Wolfgangen
dc.date.accessioned2015-06-07T22:07:50Zen
dc.date.available2015-06-07T22:07:50Zen
dc.date.issued2014-07-27en
dc.identifier.citationFrom capture to simulation: connecting forward and inverse problems in fluids 2014, 33 (4):1 ACM Transactions on Graphicsen
dc.identifier.issn07300301en
dc.identifier.doi10.1145/2601097.2601147en
dc.identifier.urihttp://hdl.handle.net/10754/556542en
dc.description.abstractWe explore the connection between fluid capture, simulation and proximal methods, a class of algorithms commonly used for inverse problems in image processing and computer vision. Our key finding is that the proximal operator constraining fluid velocities to be divergence-free is directly equivalent to the pressure-projection methods commonly used in incompressible flow solvers. This observation lets us treat the inverse problem of fluid tracking as a constrained flow problem all while working in an efficient, modular framework. In addition it lets us tightly couple fluid simulation into flow tracking, providing a global prior that significantly increases tracking accuracy and temporal coherence as compared to previous techniques. We demonstrate how we can use these improved results for a variety of applications, such as re-simulation, detail enhancement, and domain modification. We furthermore give an outlook of the applications beyond fluid tracking that our proximal operator framework could enable by exploring the connection of deblurring and fluid guiding.en
dc.publisherAssociation for Computing Machinery (ACM)en
dc.relation.urlhttp://dl.acm.org/citation.cfm?doid=2601097.2601147en
dc.rights© ACM, 2014. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in ACM Transactions on Graphics, Volume 33 Issue 4, July 2014, http://doi.acm.org/10.1145/2601097.2601147en
dc.titleFrom capture to simulation: connecting forward and inverse problems in fluidsen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.conference.date2014-08-10 to 2014-08-14en
dc.conference.name41st International Conference and Exhibition on Computer Graphics and Interactive Techniques, ACM SIGGRAPH 2014en
dc.conference.locationVancouver, BC, CANen
dc.eprint.versionPost-printen
dc.contributor.institutionUniversity of British Columbiaen
dc.contributor.institutionINRIA Bordeaux/LP2Nen
dc.contributor.institutionTU Münchenen
kaust.authorHeidrich, Wolfgangen
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