Staack, Karsten und Wereley, Steve und Garbe, Christoph S. und Willert, Christian (2012) A comparison of state-of-the-art image evaluation techniques for analysis of opaque flows. 16th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 09-12 Jul 2012, Lisbon, Portugal.
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Offizielle URL: http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2012/program.asp
Kurzfassung
In this paper we compare state-of-the-art fluid motion estimation algorithms with respect to the application to opaque flow images, such as Particle Image Velocimetry (PIV), Optical Flow and specialized variants of these. In order to compare the outcome of the algorithms we perform turbulent jet experiments with different Reynolds numbers to generate opaque images with a known average flow field as a reference to estimate the errors. Thereafter the algorithms are used to estimate the velocity of a submerged oil/gas plume that was recorded by an observation camera. We will show that the estimates strongly depend on the choice of algorithm, especially for field test images where cloud-like image structures are the only information to retrieve the motion.
elib-URL des Eintrags: | https://elib.dlr.de/77087/ | ||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Paper) | ||||||||||||||||||||
Titel: | A comparison of state-of-the-art image evaluation techniques for analysis of opaque flows | ||||||||||||||||||||
Autoren: |
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Datum: | Juli 2012 | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||
Seitenbereich: | Seiten 1-13 | ||||||||||||||||||||
Name der Reihe: | Conference Proceedings online | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | particle image velocimetry, PIV, optical flow, image processing, minimum quadratic difference, plume flow, jet flow, visualization, motion estimation | ||||||||||||||||||||
Veranstaltungstitel: | 16th International Symposium on Applications of Laser Techniques to Fluid Mechanics | ||||||||||||||||||||
Veranstaltungsort: | Lisbon, Portugal | ||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||
Veranstaltungsdatum: | 09-12 Jul 2012 | ||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||
HGF - Programmthema: | Antriebe (alt) | ||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||
DLR - Forschungsgebiet: | L ER - Antriebsforschung | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Virtuelles Triebwerk und Validierungsmethoden (alt) | ||||||||||||||||||||
Standort: | Köln-Porz | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Antriebstechnik > Triebwerksmesstechnik | ||||||||||||||||||||
Hinterlegt von: | Willert, Dr.phil. Christian | ||||||||||||||||||||
Hinterlegt am: | 22 Aug 2012 11:16 | ||||||||||||||||||||
Letzte Änderung: | 31 Jul 2019 19:37 |
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