[Insight-users] Interactive visualization of level-set evolution - HowTo?

Nils Hanssen hanssen at caesar . de
Thu, 5 Jun 2003 14:43:25 +0200


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Hi ITK community,

I am currently trying to figure out what is the usual way to visualize the
progress of an evolving front of a level-set filter (or more generally a
FiniteDifferenceImageFilter) in a small application. Is it possible to catch
the update with an observer, get the current state of the evolution
with ->GetOutput(), perform a binary threshold and print the contour to the
display?

Is this the "official way to do it"? Are there other (better?)
possibilities?

Thanks in advance,
Nils

-------------------------
Nils Hanssen
Surgical Systems Laboratory
research center c ae sa r
Ludwig-Erhard-Allee 2
53175 Bonn
fon: +49-228-9656-197
fax: +49-228-9656-117
http://www . caesar . de/ssl





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<DIV><SPAN class=3D250453712-05062003><FONT face=3DArial size=3D2>Hi ITK =

community,</FONT></SPAN></DIV>
<DIV><SPAN class=3D250453712-05062003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D250453712-05062003><FONT face=3DArial size=3D2>I am =
currently=20
trying to figure out what is the usual way to visualize the progress of =
an=20
evolving front of a level-set filter (or more generally a=20
FiniteDifferenceImageFilter) in a small application. Is it possible to =
catch the=20
update with an observer, get the current state of the evolution with=20
-&gt;GetOutput(), perform a binary threshold and print the contour to =
the=20
display?</FONT></SPAN></DIV>
<DIV><SPAN class=3D250453712-05062003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D250453712-05062003><FONT face=3DArial size=3D2>Is =
this the=20
"official way to do it"? Are there other (better?)=20
possibilities?</FONT></SPAN></DIV>
<DIV><SPAN class=3D250453712-05062003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D250453712-05062003><FONT face=3DArial size=3D2>Thanks =
in=20
advance,</FONT></SPAN></DIV>
<DIV><SPAN class=3D250453712-05062003><FONT face=3DArial=20
size=3D2>Nils</FONT></SPAN></DIV>
<DIV><SPAN class=3D250453712-05062003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<P><FONT face=3D"Courier New" =
size=3D2>-------------------------</FONT><BR><FONT=20
face=3D"Courier New" size=3D2>Nils Hanssen</FONT><FONT=20
face=3D"Times New Roman"><BR></FONT><FONT face=3D"Courier New" =
size=3D2>Surgical=20
Systems Laboratory</FONT><BR><FONT face=3D"Courier New" =
size=3D2>research center c=20
ae sa r</FONT><FONT face=3D"Times New Roman"><BR></FONT><FONT =
face=3D"Courier New"=20
size=3D2>Ludwig-Erhard-Allee 2<BR></FONT><FONT face=3D"Courier New" =
size=3D2>53175=20
Bonn</FONT><FONT face=3D"Times New Roman"><BR></FONT><FONT =
face=3D"Courier New"=20
size=3D2>fon: +49-228-9656-197</FONT><FONT face=3D"Times New =
Roman"><BR></FONT><FONT=20
face=3D"Courier New" size=3D2>fax: +49-228-9656-117</FONT><FONT=20
face=3D"Times New Roman"><BR><U></U></FONT><U><FONT face=3D"Courier New" =

color=3D#0000ff size=3D2><A href=3D"http://www . caesar . de/ssl"=20
target=3D_blank>http://www . caesar . de/ssl</A></FONT></U> </P><BR>
<DIV>&nbsp;</DIV></BODY></HTML>

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