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Tomographic Image Reconstrution in Experimental Fluid Dynamics: Synopsis and Problems

Petra, Stefania and Schnörr, Christoph and Schröder, Andreas and Wieneke, Bernhard (2009) Tomographic Image Reconstrution in Experimental Fluid Dynamics: Synopsis and Problems. In: Jahresband 2009 Editura Academiei Romane. pp. 79-104. ISBN 978-973-27-1903-9.

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Particle Image Velocimetry (PIV) denotes a prevailing technique for imaging turbulent fluids with high-speed cameras. Corresponding image sequences provide the basis for estimating such flows and related flow patterns through image processing. While so far this technique has been applied in two dimensions (2D) in terms of an illuminated plane intersecting the volume, recent research focuses on imaging fluids directly in 3D. This paper provides a synopsis of the state-of-the-art and its connections to previous research work on image restoration. We address the basic problems involved and point out promising research directions for reconstructing scalar-valued particle functions from few tomographical measurements. Solutions to these problems will provide an essential processing step prior to the estimation of 3D flows from reconstructed volume functions.

Document Type:Contribution to a Collection
Title:Tomographic Image Reconstrution in Experimental Fluid Dynamics: Synopsis and Problems
AuthorsInstitution or Email of Authors
Petra, StefaniaUni Heidelberg
Schnörr, ChristophUni Heidelberg
Schröder, Andreasandreas.schroeder@dlr.de
Wieneke, BernhardLaVision, Göttingen, D
Journal or Publication Title:Jahresband 2009
Refereed publication:Yes
In ISI Web of Science:No
Page Range:pp. 79-104
Marinoschi, GabrielaUNSPECIFIED
Popa, ConstantinUNSPECIFIED
Publisher:Editura Academiei Romane
Keywords:tomographic particle image velocimetry, algebraic reconstruction techniques, positivity constraints, ill-posed problems, minimum energy solution, maximum entropy solution
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:15 Dec 2009 08:44
Last Modified:31 Mar 2015 15:34

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