[Insight-users] Curvature term in ShapeDetectionLevelSetImageFilter
Nils Hanssen
hanssen at caesar . de
Wed, 9 Jul 2003 09:43:06 +0200
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Hi,
I want to segment a tubular object with the ShapeDetectionLSIF. The initial
level-set is the "axis" of the tubular object.
To prevent the contour from leaking through gaps in the edge-map, I set the
curvature-weighting with values between 0.02 and 5.
The size of the gaps is approx. 3% of the perimeter of the contour, but I
was not able to stop the leaking.
What do I have to tune to achieve a significant smoothing?
Regards,
Nils
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<DIV><SPAN class=3D078182307-09072003><FONT face=3DArial=20
size=3D2>Hi,</FONT></SPAN></DIV>
<DIV><SPAN class=3D078182307-09072003><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D078182307-09072003><FONT face=3DArial size=3D2>I want =
to segment a=20
tubular object with the ShapeDetectionLSIF. The initial level-set is the =
"axis"=20
of the tubular object. </FONT></SPAN></DIV>
<DIV><SPAN class=3D078182307-09072003><FONT face=3DArial size=3D2>To =
prevent the=20
contour from leaking through gaps in the edge-map, I set the =
curvature-weighting=20
with values between 0.02 and 5.</FONT></SPAN></DIV>
<DIV><SPAN class=3D078182307-09072003><FONT face=3DArial size=3D2>The =
size of the gaps=20
is approx. 3% of the perimeter of the contour, but I was not able to =
stop the=20
leaking. </FONT></SPAN></DIV>
<DIV><SPAN class=3D078182307-09072003></SPAN><SPAN=20
class=3D078182307-09072003></SPAN><SPAN =
class=3D078182307-09072003></SPAN><SPAN=20
class=3D078182307-09072003><FONT face=3DArial =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D078182307-09072003><FONT face=3DArial size=3D2>What =
do I have to=20
tune to achieve a significant smoothing?</FONT></SPAN></DIV>
<DIV><SPAN class=3D078182307-09072003><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D078182307-09072003></SPAN><SPAN =
class=3D078182307-09072003><FONT=20
face=3DArial size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D078182307-09072003><FONT face=3DArial=20
size=3D2>Regards,</FONT></SPAN></DIV>
<DIV><SPAN class=3D078182307-09072003><FONT face=3DArial=20
size=3D2>Nils</FONT></SPAN></DIV>
<DIV><SPAN class=3D078182307-09072003><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
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size=3D2></FONT></SPAN> </DIV>
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size=3D2></FONT></SPAN> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV></BODY></HTML>
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