Advanced evaluation algorithms for standard and dual plane particle image velocimetry.
9th international symposium on applications of laser techniques, 1998
Abstract: The widely-used evaluation algorithms1 for PIV recordings have some
short comings, in that they introduce superfluous statistical and
systematical errors. For example, they introduce the so-called
"peak-locking" effect. These errors can be significantly reduced by
using better algorithms. The following considerably improved analysis
and algorithms will be described and demonstrated on real PIV
recordings: Analysis of errors of CCD's and the electric transmission
of the video signal. An FFT-based cross correlation algorithm using
completely free-shaped and free-sized interrogation windows which
exhibits the same accuracy as an optimally programmed direct
correlation. A Gaussian fit algorithm using different weights forthe
values in the correlation plane due to the error distribution of
correlation coefficients.
Other associated files :
![1998_Ronneberger_Dual_Plane_Particle_Image_Velocimetry.pdf [642KB]](/Publications/images/pdf.png "1998_Ronneberger_Dual_Plane_Particle_Image_Velocimetry.pdf [642KB]")
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BibTex reference
@InProceedings{Ron98a,
author = "O. Ronneberger and M. Raffel and J. Kompenhans",
title = "Advanced evaluation algorithms for standard and dual plane particle image velocimetry.",
booktitle = "9th international symposium on applications of laser techniques",
year = "1998",
url = "http://lmbweb.informatik.uni-freiburg.de/Publications/1998/Ron98a"
}