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Volume Reconstruction using spatial varying optical transfer function (OTF)

Schanz, Daniel and Gesemann, Sebastian and Schröder, Andreas and Wieneke, Bernhard and Novara, Matteo (2011) Volume Reconstruction using spatial varying optical transfer function (OTF). FVR 2011, 29. Nov. - 01. Dec. 2011, Poitiers, France.

Full text not available from this repository.

Official URL: http://fvr2011.conference.univ-poitiers.fr

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 distortions, 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 spatially varying OTF, calibrated to the imaging conditions, show a significant improvement in reconstruction quality, correlation quality and accuracy of the particle peak position. First results on experimental data indicate a distinct reduction in ghost particle intensity compared to other approaches.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Volume Reconstruction using spatial varying optical transfer function (OTF)
Authors:
AuthorsInstitution or Email of Authors
Schanz, DanielUNSPECIFIED
Gesemann, SebastianUNSPECIFIED
Schröder, AndreasUNSPECIFIED
Wieneke, BernhardLaVision, Göttingen, D
Novara, MatteoDelft University of Technology, The Netherlands
Date:2011
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:Conference Proceedings on CD-ROM
Status:Published
Keywords:optical transfer function (OTF), tomographic PIV
Event Title:FVR 2011
Event Location:Poitiers, France
Event Type:international Conference
Event Dates:29. Nov. - 01. Dec. 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:05 Dec 2011 11:49
Last Modified:05 Dec 2011 11:49

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