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Particle Reconstruction with Optical Transfer Functions Applied to Tomo-PIV-Experiments

Schanz, Daniel and Gesemann, Sebastian and Schröder, Andreas and Wieneke, Bernhard (2013) Particle Reconstruction with Optical Transfer Functions Applied to Tomo-PIV-Experiments. In: New Results in Numerical Experimental Fluid Mechanics VIII Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 121. Springer Verlag, Heidelberg New York Dordrecht London. pp. 623-631. ISBN 978-3-642-35679-7. ISSN 1612-2909

Full text not available from this repository.

Official URL: http://link.springer.com/chapter/10.1007/978-3-642-35680-3_74

Abstract

A new approach to the weighting function, which describes particle imaging in the reconstruction process of tomographic PIV, is introduced. Instead of assuming a spatially homogeneous mapping function of a voxel to the images, a variable optical transfer function (OTF) is applied. By this method, the effects of optical distor-tions, introduced during the recording process, can be reduced considerably. The effect of blurred particle imaging and astigmatisms on reconstruction and correlation quality is investigated via simulated data. Reconstructions using a spa-tially varying OTF, calibrated to the imaging conditions, show a significant im-provement in reconstruction quality, correlation quality and accuracy of the particle peak position. First results on experimental data indicate a distinct reduc-tion in ghost particle intensity compared to other approaches.

Item URL in elib:https://elib.dlr.de/69162/
Document Type:Contribution to a Collection
Additional Information:Online ISBN: 978-3-642-35680-3
Title:Particle Reconstruction with Optical Transfer Functions Applied to Tomo-PIV-Experiments
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schanz, Danieldaniel.schanz (at) dlr.deUNSPECIFIED
Gesemann, Sebastiansebastian.gesemann (at) dlr.deUNSPECIFIED
Schröder, Andreasandreas.schroeder (at) dlr.deUNSPECIFIED
Wieneke, BernhardLaVision, Göttingen, DUNSPECIFIED
Date:2013
Journal or Publication Title:New Results in Numerical Experimental Fluid Mechanics VIII
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:121
DOI :10.1007/978-3-642-35680-3_74
Page Range:pp. 623-631
Editors:
EditorsEmail
Dillmann, AndreasUNSPECIFIED
Heller, GerdAirbus Deutschland, Bremen, Germany
Kreplin, Hans-PeterUNSPECIFIED
Nitsche, WolfgangTU Berlin, Berlin, Germany
Peltzer, InkenBeechcraft Berlin aviation GmbH, Schönefeld, Germany
Publisher:Springer Verlag, Heidelberg New York Dordrecht London
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-642-35679-7
Status:Published
Keywords:tomo-PIV, optical transfer function (OTF)
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 - Simulation & Validation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:15 Feb 2013 16:22
Last Modified:27 Apr 2015 11:30

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