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  Time-resolved 3D Capture of Non-stationary Gas Flows

Atcheson, B., Ihrke, I., Heidrich, W., Tevs, A., Bradley, D., Magnor, M., et al. (2008). Time-resolved 3D Capture of Non-stationary Gas Flows. In J. c. Hart (Ed.), ACM SIGGRAPH Asia 2008 papers (pp. Art.132.1-9). New York, NY: ACM.

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 Urheber:
Atcheson, Bradley, Autor
Ihrke, Ivo1, 2, Autor           
Heidrich, Wolfgang2, Autor           
Tevs, Art2, 3, Autor           
Bradley, Derek, Autor
Magnor, Marcus1, Autor           
Seidel, Hans-Peter2, Autor           
Affiliations:
1Graphics - Optics - Vision, MPI for Informatics, Max Planck Society, ou_1116549              
2Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              
3International Max Planck Research School, MPI for Informatics, Max Planck Society, ou_1116551              

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Schlagwörter: -
 Zusammenfassung: Fluid simulation is one of the most active research areas in computer graphics. However, it remains difficult to obtain measurements of real fluid flows for validation of the simulated data. In this paper, we take a step in the direction of capturing flow data for such purposes. Specifically, we present the first time-resolved Schlieren tomography system for capturing full 3D, non-stationary gas flows on a dense volumetric grid. Schlieren tomography uses 2D ray deflection measurements to reconstruct a time-varying grid of 3D refractive index values, which directly correspond to physical properties of the flow. We derive a new solution for this reconstruction problem that lends itself to efficient algorithms that robustly work with relatively small numbers of cameras. Our physical system is easy to set up, and consists of an array of relatively low cost rolling-shutter camcorders that are synchronized with a new approach. We demonstrate our method with real measurements, and analyze precision with synthetic data for which ground truth information is available.

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Sprache(n): eng - English
 Datum: 2009-03-262008
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: New York, NY : ACM
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 427981
DOI: 10.1145/1457515.1409085
URI: http://www.cs.ubc.ca/labs/imager/tr/2008/GasCapture/gascapture.pdf
Anderer: Local-ID: C125756E0038A185-42313017B538F8DDC125755400566273-Atcheson:2008
 Art des Abschluß: -

Veranstaltung

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Titel: Untitled Event
Veranstaltungsort: Singapore
Start-/Enddatum: 2008-12-11 - 2008-12-13

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Quelle 1

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Titel: ACM SIGGRAPH Asia 2008 papers
Genre der Quelle: Konferenzband
 Urheber:
Hart, John c., Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: New York, NY : ACM
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: Art.132.1 - 9 Identifikator: -

Quelle 2

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Titel: ACM Transactions on Graphics,
Genre der Quelle: Reihe
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: - Identifikator: -