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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif""> I am trying to save the deformation field from some images and the apply the same deformation field on another set of images. For saving the deformation field I am using a file write and
saving it as .mhd file as given in the example DeformableRegistration5.cxx<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> typedef itk::ImageFileWriter< DeformationFieldType > FieldWriterType;<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> FieldWriterType::Pointer fieldWriter = FieldWriterType::New();<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> fieldWriter->SetFileName(“DeformationFieldBuffer.mhd”);<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> fieldWriter->SetInput( filter->GetDeformationField() ); ///</span><span style="font-family:"Arial","sans-serif"">here filter is LevelSetMotionRegistrationFilter
type <o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> DeformationFieldType::Pointer deformationMap = filter->GetDeformationField();<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""> fieldWriter->Update();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif""> Then I am trying to apply the same on another image as following here reader is imagefilereader for an image of type .mha.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New"">
<span style="color:#002060">warper1->SetInput( reader->GetOutput() );<o:p></o:p></span></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> warper1->SetInterpolator( interpolator1 );<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> warper1->SetOutputSpacing( reader->GetOutput()->GetSpacing() );<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> warper1->SetOutputOrigin( reader->GetOutput()->GetOrigin() );<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060">
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> warper1->SetDeformationField(deformationMap);<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> warper1->Update();<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060">
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> typedef itk::ImageFileWriter< ImageType > WriterType;<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> WriterType::Pointer writer = WriterType::New();<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> writer->SetFileName("Result.mha" );<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;
font-family:"Courier New";color:#002060"> writer->SetInput( warper1->GetOutput() );<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";
color:#002060"> writer->Update();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif"">The update fails for warper1 as well as writer. I want to know how can I implement this? Can I use the Image
</span><span style="font-size:10.0pt;font-family:"Courier New"">DeformationFieldBuffer.mhd
</span><span style="font-family:"Arial","sans-serif"">for setting the deformation field for</span><span style="font-size:10.0pt;font-family:"Courier New"">
</span><span style="font-family:"Arial","sans-serif"">the test image and for that whether I need to create another filter?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif"">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif"">Rejitha<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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