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[Savannah-hackers] savannah.gnu.org: submission of CIV development
From: |
gauthier |
Subject: |
[Savannah-hackers] savannah.gnu.org: submission of CIV development |
Date: |
Tue, 18 Dec 2001 07:30:53 -0500 |
A package was submitted to savannah.gnu.org.
This mail was sent to address@hidden, address@hidden
Gauthier DELERCE <address@hidden> described the package as follows:
License: gpl
Other License:
Package: CIV development
System name: dcciv
This package wants to apply for inclusion in the GNU project
This project purpose is the development of Direct Cross-Correlation Imaging
Velocimetry algorithms.
The Correlation Imaging Velocimetry (CIV) technique permits the measurement of
velocity fields in a plane illuminated by a laser light sheet.
The adaptation of these techniques to meter size (or larger) fields of view
requires new developments in algorithms.
3D measurements will be obtained by rapidly scanning a laser sheet through the
measurement volume, this process is repeated a short time later and the
resulting 3D image cube pair will be intercorrelated using a 3D form of the
advanced CIV algorithm.
Due to the extreme computational requirements of direct 3D intercorrelation,
new algorithms that use a hierarchical processing scheme must be developed to
render this technique utilizable.
These hierarchical image processing techniques will also initially be developed
in 2D, where they will extend the range of measurable scales (important in
large scale measurement where the illuminated planes typically contain many
different scales of motion).
Two articles have been published on this techniques :
http://link.springer.de/link/service/journals/00348/bibs/0029007/0029s013.htm
and
Fincham, A., and G. Spedding, 1997, Low cost, high resolution DPIV for
measurement of turbulent fluid flow. Exp. Fluids, 23, 449-462
Presently both 2D and 3D algorithms are available with a HTML interface and
clustering support. They have been written in Fortran90 in a modular way and
can include other languages routines or librairies.
They still use IMSL librairies when free equivalent are not available and each
line of code is under GPL license. But except for the compilation ( link to
imsl ) , the interface and the processing run on Free platform systems.
We plan to implement own made imsl routines equivalent soon.
The goal of this registration is to create a small and active community using
the up-to-date tools you provide to develop a free and efficient Imaging
Velocimetry solution for labs.
Several researchers and PhD students are involves in this project.
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