[Insight-users] How to compute the parameters of VectorFuzzyConnectednessImageFilter?

Ying Zhuge zhuge at mipg.upenn.edu
Thu, 1 Apr 2004 09:53:34 -0500


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Hi, Yongqiang,
Those parameters should be estimated from training sample regions which =
usually be specified by a GUI system. You can also take the neighborhood =
regions of seed points to estimate those parameters. That paper you =
mentioned has been published on Graphical Models 64 (2003) 259-281.

Ying
  ----- Original Message -----=20
  From: zhao yong qiang=20
  To: insight-users at itk.org=20
  Sent: Thursday, April 01, 2004 8:36 AM
  Subject: [Insight-users] How to compute the parameters of =
VectorFuzzyConnectednessImageFilter?


  Hi all,

       I want to use fuzzy connectedness method to segment MRA images, =
but after I read the description of this filter and the test file =
"itkVectorFuzzyConnectednessImageFilterTest.cxx", I really don't know =
how to get some parameters that filter needs.=20

  In test file, the parameters including ObjectMean and ObjectMatrix are =
set by hand, I think this method is not feasible.  In another point, I =
can not find the paper "Fuzzy-connected 3D image segmentation at =
interactive speeds", so it is hard to read the source code.

  Can someone tell me how to compute these parameters?

  Thanks!!



  Regards,=20
                            Zhao Yongqiang
                            Dept. of Computer Science & Engineering
                            Shanghai JiaoTong University
                            Shanghai, China
                            zhao-yq at cs.sjtu.edu.cn



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<DIV><FONT face=3DArial size=3D2>Hi, Yongqiang,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Those parameters should be =
estimated&nbsp;from=20
training sample regions which usually be specified by a GUI system. You =
can also=20
take the neighborhood regions of seed points to estimate those =
parameters.=20
</FONT><FONT face=3DArial size=3D2>That paper you mentioned has been =
published on=20
Graphical Models 64 (2003) 259-281.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Ying</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3Dzhao-yq at cs.sjtu.edu.cn =
href=3D"mailto:zhao-yq at cs.sjtu.edu.cn">zhao yong=20
  qiang</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dinsight-users at itk.org=20
  href=3D"mailto:insight-users at itk.org">insight-users at itk.org</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Thursday, April 01, 2004 =
8:36=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Insight-users] How to =
compute=20
  the parameters of VectorFuzzyConnectednessImageFilter?</DIV>
  <DIV><BR></DIV>
  <DIV class=3DSection1 style=3D"LAYOUT-GRID:  15.6pt none">
  <P class=3DMsoNormal><FONT face=3DArial size=3D1><SPAN lang=3DEN-US=20
  style=3D"FONT-SIZE: 9pt; FONT-FAMILY: Arial">Hi all,</SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D1><SPAN lang=3DEN-US=20
  style=3D"FONT-SIZE: 9pt; FONT-FAMILY: Arial">&nbsp;&nbsp;&nbsp;&nbsp; =
I want to=20
  use fuzzy connectedness method to segment MRA images, but after I read =
the=20
  description of this filter and the test file=20
  =93itkVectorFuzzyConnectednessImageFilterTest.cxx=94, I really don=92t =
know how to=20
  get some parameters that filter needs. </SPAN></FONT></P>
  <P class=3DMsoNormal style=3D"TEXT-INDENT: 18pt"><FONT face=3DArial =
size=3D1><SPAN=20
  lang=3DEN-US style=3D"FONT-SIZE: 9pt; FONT-FAMILY: Arial">In test =
file, the=20
  parameters including ObjectMean and ObjectMatrix are set by hand, I =
think this=20
  method is not feasible. &nbsp;In another point, I can not find the =
paper=20
  =93</SPAN></FONT><SPAN lang=3DEN-US>Fuzzy-connected 3D image =
segmentation at=20
  interactive speeds</SPAN><FONT face=3DArial size=3D1><SPAN =
lang=3DEN-US=20
  style=3D"FONT-SIZE: 9pt; FONT-FAMILY: Arial">=94, so it is hard to =
read the source=20
  code.</SPAN></FONT></P>
  <P class=3DMsoNormal style=3D"TEXT-INDENT: 18pt"><FONT face=3DArial =
size=3D1><SPAN=20
  lang=3DEN-US style=3D"FONT-SIZE: 9pt; FONT-FAMILY: Arial">Can someone =
tell me how=20
  to compute these parameters?</SPAN></FONT></P>
  <P class=3DMsoNormal style=3D"TEXT-INDENT: 18pt"><FONT face=3DArial =
size=3D1><SPAN=20
  lang=3DEN-US=20
  style=3D"FONT-SIZE: 9pt; FONT-FAMILY: =
Arial">Thanks!!</SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial size=3D1><SPAN lang=3DEN-US=20
  style=3D"FONT-SIZE: 9pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
  <P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D2><SPAN =
lang=3DEN-US=20
  style=3D"FONT-SIZE: 10pt">Regards,=20
  =
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;=20
  Zhao=20
  =
Yongqiang<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;=20
  Dept. of Computer Science &amp;=20
  =
Engineering<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;=20
  Shanghai JiaoTong=20
  =
University<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;=20
  Shanghai,=20
  =
China<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;=20
  <A=20
  =
href=3D"mailto:zhao-yq at cs.sjtu.edu.cn">zhao-yq at cs.sjtu.edu.cn</A></SPAN><=
/FONT></P>
  <P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D2><SPAN =
lang=3DEN-US=20
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10pt"></SPAN></FONT>&nbsp;</P></DIV></BLOCKQUOTE></BODY></HTML>

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