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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hello,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Let me explain my program and problem. My program is used for
medical image segmentation, including data loading, denoising, and segmentation
by ITK, visualization by VTK, interface by QT.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Till data loading and denoising, it works normally. However,
once I click segmentation button after the denoising phase, the crash occur:
error in allocating memory.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If I skip the denoising phase and run segmentation right after
the data loading, then there is no crash. Please help me. Thank you!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Error message:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><img width=421 height=158 id="图片_x0020_1"
src="cid:image003.jpg@01CB7BFF.9A1B04D0" alt=Untitled.png></span><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Code:<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>//connect vtk to
itk</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>template</span><span
style='font-size:10.0pt;font-family:"Courier New"'> <<span style='color:
blue'>typename</span> ITK_Exporter, <span style='color:blue'>typename</span>
VTK_Importer></span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>void</span><span
style='font-size:10.0pt;font-family:"Courier New"'>
ConnectPipelines(ITK_Exporter exporter, VTK_Importer* importer)</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'>{</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>…<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'>}</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>//Paramter
definiation</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#define</span><span
style='font-size:10.0pt;font-family:"Courier New"'> N_SEEDS 11</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'> <span
style='color:blue'>typedef</span> <span style='color:blue'>float</span>
InputPixelType;</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>typedef</span><span
style='font-size:10.0pt;font-family:"Courier New"'> <span
style='color:blue'>float</span> OutputPixelType;</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>…<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'>SimpleView::SimpleView() </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'>{</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'> <span
style='color:blue'>this</span>->ui = <span style='color:blue'>new</span>
Ui_SimpleView;</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'><span style='font-size:10.0pt;font-family:"Courier New";
color:blue'>this</span><span style='font-size:10.0pt;font-family:"Courier New"'>->ui->setupUi(<span
style='color:blue'>this</span>);</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New";color:green'> // Set up
action signals and slots</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'><span style='font-size:10.0pt;font-family:"Courier New"'>connect(<span
style='color:blue'>this</span>->ui->actionOpen, SIGNAL(triggered()), <span
style='color:blue'>this</span>, SLOT(slotOpen())); </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'><span style='font-size:10.0pt;font-family:"Courier New"'>connect(<span
style='color:blue'>this</span>->ui->pushButton_14, SIGNAL(clicked()), <span
style='color:blue'>this</span>, SLOT(slotContour()));</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'>};</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>void</span><span
style='font-size:10.0pt;font-family:"Courier New"'> SimpleView::slotOpen()</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'>{</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>
…<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'><span style='font-size:10.0pt;font-family:"Courier New"'>reader->Update();</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>//Diffusion filter</span><span style='font-size:10.0pt;font-family:
"Courier New";color:green'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'>…<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>filter</span><span style='font-size:10.0pt;font-family:"Courier New"'>->Update();</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'>}</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>void</span><span
style='font-size:10.0pt;font-family:"Courier New"'> SimpleView::slotContour() {</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'>…<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'><span style='font-size:10.0pt;font-family:"Courier New"'>//fast
marching<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'> </span><span
style='font-size:10.0pt;font-family:"Courier New"'>gradientMagnitude->SetInput(
</span><span style='font-size:10.0pt;font-family:"Courier New";color:red'>filter</span><span
style='font-size:10.0pt;font-family:"Courier New"'>->GetOutput() );</span><span
style='font-size:10.0pt;font-family:"Courier New"'> </span><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>//use the filter
output from diffusion denoising phase as input</span><span style='font-size:
10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'> sigmoid->SetInput(
gradientMagnitude->GetOutput() );</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'> </span><span
style='font-size:10.0pt;font-family:"Courier New"'>fastMarching->SetInput(
sigmoid->GetOutput() );</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'> thresholder1->SetInput(
fastMarching->GetOutput() );</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>//define connection between ITK and VTK</span><span
style='font-size:10.0pt;font-family:"Courier New";color:green'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'>…<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>//visualization by vtkImageviewer2</span><span style='font-size:
10.0pt;font-family:"Courier New";color:green'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'>…<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Courier New"'>}</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'><span style='font-size:10.0pt;font-family:"Courier New";
color:green'><o:p> </o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><o:p> </o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:12.0pt'><o:p> </o:p></p>
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