[Insight-users] ThresholdSegmentationLevelSet example

Lara Vigneron Lara.Vigneron@ulg.ac.be
Mon, 09 Dec 2002 13:01:59 +0100


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Hi everybody,

I am looking  for information about the ThresholdSegmentationLevelSet
example.

I was reading the following message from Josh Cates (in
http://www.itk.org/pipermail/insight-users/2002-September/001141.html)

Just a couple of tips using this filter:  Your initialization should be
a
closed surface such as a sphere or a box.  A single point or line will
disintigrate under its own curvature after only a few iterations.  The
key
to getting good results is obviously to find the correct threshold
parameters, which will be a trial and error process for your dataset.

Does anybody out there know how one can actually initialize the level
set with a sphere or a box when one uses the GUI in this example?

Thanks a lot,

Lara


--
Lara VIGNERON

Signal Processing Group

University of Liege
Institut Montefiore
Sart-Tilman, Batiment B28
B-4000 Liege
BELGIUM

Tel: +32-(0)4-366.26.42
Fax: +32-(0)4-366.29.84
Lara.Vigneron@ulg.ac.be



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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Hi everybody,
<p>I am looking&nbsp; for information about the ThresholdSegmentationLevelSet
example.
<p>I was reading the following message from Josh Cates (in <A HREF="http://www.itk.org/pipermail/insight-users/2002-September/001141.html">http://www.itk.org/pipermail/insight-users/2002-September/001141.html</A>)
<p><i>Just a couple of tips using this filter:&nbsp; Your initialization
should be a</i>
<br><i>closed surface such as a sphere or a box.&nbsp; A single point or
line will</i>
<br><i>disintigrate under its own curvature after only a few iterations.&nbsp;
The</i>
<br><i>key</i>
<br><i>to getting good results is obviously to find the correct threshold</i>
<br><i>parameters, which will be a trial and error process for your dataset.</i>
<p>Does anybody out there know how one can actually initialize the level
set with a sphere or a box when one uses the GUI in this example?<i></i>
<p>Thanks a lot,
<p>Lara
<br><i></i>&nbsp;
<pre>--&nbsp;
Lara VIGNERON

Signal Processing Group

University of Liege
Institut Montefiore
Sart-Tilman, Batiment B28
B-4000 Liege
BELGIUM

Tel: +32-(0)4-366.26.42
Fax: +32-(0)4-366.29.84
Lara.Vigneron@ulg.ac.be</pre>
&nbsp;</html>

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