Posted by
John Alexander-7 on
Jun 22, 2008; 7:28pm
URL: http://imagej.273.s1.nabble.com/Flow-tracking-tp3695757p3695766.html
I would suggest taking advantage of the Red color.
Cover the part of the apparatus that you don't want to track - and take
your color photos. Alternatively (if its too late to do this), crop
your images such that the only red is from the fluid. separate the
image into its RGB components and analyze the red channel. It may be
necessary to do some thresholding to get the image exclusively your fluid.
If the diameter of the tube is equal in all parts of the image - then
you don't really need to track it. Just threshold the image, and sum
all the pixels. The distance along the tube and the total number of Red
pixels should be related by a constant.
isadaba wrote:
>
http://www.nabble.com/file/p18052351/2665.bmp
>
>
http://www.nabble.com/file/p18052351/2734.bmp
>
> Dear imageJ users,
>
> I have recently known about ImageJ and was trying to use it for our medical
> engineering problem. As you can see in the figures the fluid flows through
> the serpentine shape channel, see the advance from one figure to the other
> on the upper serpentine. We need to capture flow motion through the channel
> from video sequence, by automatically tracking position or speed.
>
> Unfortunately I have not found any plugging for this purpose, I have tried
> several tracking pluggings but they mosly work with particles and do not
> detect fluid flow.
>
> I will strongly appreciate any tip that may help us.
>
> Thanks in advance.
> Iñaki.
--
John K. Alexander, Ph.D.
Post-Doctoral Fellow
William Green Laboratory
University of Chicago
Dept. Neurobiology, Pharmacology, and Physiology
947 East 58th Street
Abott Hall 402
Chicago, IL 60637
(off) 773-702-9386
(fax) 773-702-3774
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