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<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'>Hi all,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'><span style='mso-tab-count:
1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>I write some sentences
for image registration with python. <span class=GramE>The extends</span> of fixed
and moving images are about 180*216*180. Some codes as followed:<o:p></o:p></span></font></p>

<p class=MsoNormal><i style='mso-bidi-font-style:normal'><font size=1
face=Arial><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=GramE>registration</span> = itk.itkImageRegistrationMethodF3F3_New()<o:p></o:p></span></font></i></p>

<p class=MsoNormal><i style='mso-bidi-font-style:normal'><font size=1
face=Arial><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=GramE>imageMetric<span style='mso-spacerun:yes'>&nbsp; </span>=</span>
itk.itkMutualInformationImageToImageMetricF3F3_New()<o:p></o:p></span></font></i></p>

<p class=MsoNormal><i style='mso-bidi-font-style:normal'><font size=1
face=Arial><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-spacerun:yes'>&nbsp;</span><span
style='mso-spacerun:yes'>&nbsp;</span><span
style='mso-spacerun:yes'>&nbsp;</span><span
style='mso-spacerun:yes'>&nbsp;</span><span class=GramE>transform</span><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span>=<span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>itk.itkQuaternionRigidTransform_New()<o:p></o:p></span></font></i></p>

<p class=MsoNormal><i style='mso-bidi-font-style:normal'><font size=1
face=Arial><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=GramE>optimizer</span><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;
</span>= itk.itkQuaternionRigidTransformGradientDescentOptimizer_New()<o:p></o:p></span></font></i></p>

<p class=MsoNormal><i style='mso-bidi-font-style:normal'><font size=1
face=Arial><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=GramE>interpolator</span> =
itk.itkLinearInterpolateImageFunctionF3D_New()<o:p></o:p></span></font></i></p>

<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'>If I wanted the satisfied registration
result, it need run a long time above half an hour. <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'>Now I want to ask whether it
is normal. And are there any methods to shorten the running time?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'>Regards <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'><span style='mso-tab-count:
1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
class=GramE>carrie</span><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'><span style='mso-tab-count:
1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><o:p></o:p></span></font></p>

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