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<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>Hi all,</span></font></p>
<p class=MsoNormal style='text-indent:18.0pt'><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;font-family:Arial'>I use the CurveLevelSetImageFilter
for MRA segmentation, then I convert itkImage(intensity (-4.0---4.0)) to vtkImage.
Finally, I use marching cube algorithm to display the zero surface, but the result
is very strange, then I add other two isosurfaces(-0.05 and 0.05), the result
seemed right.</span></font></p>
<p class=MsoNormal style='text-indent:18.0pt'><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;font-family:Arial'>Can someone explain this?</span></font></p>
<p class=MsoNormal style='text-indent:18.0pt'><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;font-family:Arial'>Thanks in advance!</span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.0pt'>Regards, <br>
Zhao Yongqiang<br>
Dept. of Computer Science & Engineering<br>
</span></font><font size=2><span lang=EN-US style='font-size:10.0pt'>Shanghai</span></font><font
size=2><span lang=EN-US style='font-size:10.0pt'> </span></font><font size=2><span
lang=EN-US style='font-size:10.0pt'>JiaoTong</span></font><font size=2><span
lang=EN-US style='font-size:10.0pt'> </span></font><font size=2><span
lang=EN-US style='font-size:10.0pt'>University</span></font><font size=2><span
lang=EN-US style='font-size:10.0pt'><br>
</span></font><font size=2><span lang=EN-US style='font-size:10.0pt'>Shanghai</span></font><font
size=2><span lang=EN-US style='font-size:10.0pt'>, </span></font><font size=2><span
lang=EN-US style='font-size:10.0pt'>China</span></font><font size=2><span
lang=EN-US style='font-size:10.0pt'><br>
<a href="mailto:zhao-yq@cs.sjtu.edu.cn">zhao-yq@cs.sjtu.edu.cn</a></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US> </span></font></p>
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