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List: vtkusers
Subject: Re: [vtkusers] VTKImageReslice: slow performance.
From: Andras Lasso <lasso () queensu ! ca>
Date: 2019-07-05 15:23:21
Message-ID: YTOPR0101MB129294C33865073B11235C5AD8F50 () YTOPR0101MB1292 ! CANPRD01 ! PROD ! OUTLOOK ! COM
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The mailing list will be shut down soon. Please continue the discussion on the forum \
on the topic that you have already created - \
https://discourse.vtk.org/t/vtkimagereslice-slow-performance/1281
Andras
From: vtkusers <vtkusers-bounces@vtk.org> On Behalf Of David Gobbi
Sent: Friday, July 5, 2019 11:12 AM
To: abhishek <abhishek@meddiff.com>
Cc: VTK Users <vtkusers@vtk.org>
Subject: Re: [vtkusers] VTKImageReslice: slow performance.
Hi Abhishek,
It's the Update() method is what actually executes the filter. GetOutput() is just a \
getter method that returns a pointer.
Can you provide a short code snippet so that we can see exactly how you are using \
vtkImageReslice?
David
On Fri, Jul 5, 2019 at 3:55 AM abhishek \
<abhishek@meddiff.com<mailto:abhishek@meddiff.com>> wrote: Hello Group, I am having \
performance issues while extracting SAGGITAL/CORONAL planes using VTKImageReslice. \
Each call to VTKImageReslice->GetOutput() takes 5-7 ms.
The volume used has the following properties:
1. Dimensions: 512x512x297
2. Pixel spacing: 0.4x0.4x0.7
3. Scalar type: Unsigned Int16
4. Number of components: 1 (Monochrome).
System & Build environment:
1. Windows 7, 12GB RAM, i3 processor.
2. Visual studio 2013
2. VTK 7.1.1
3. WPF for UI
Are there any known considerations for making VTKImageReslice fast?
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<p class="MsoNormal"><span \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">The \
mailing list will be shut down soon. Please continue the discussion on the forum on \
the topic that you have already created - </span><a \
href="https://discourse.vtk.org/t/vtkimagereslice-slow-performance/1281">https://discourse.vtk.org/t/vtkimagereslice-slow-performance/1281</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Andras<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"><b><span \
style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span \
style="font-size:11.0pt;font-family:"Calibri",sans-serif"> vtkusers \
<vtkusers-bounces@vtk.org> <b>On Behalf Of </b>David Gobbi<br>
<b>Sent:</b> Friday, July 5, 2019 11:12 AM<br>
<b>To:</b> abhishek <abhishek@meddiff.com><br>
<b>Cc:</b> VTK Users <vtkusers@vtk.org><br>
<b>Subject:</b> Re: [vtkusers] VTKImageReslice: slow \
performance.<o:p></o:p></span></p> <p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">Hi Abhishek,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">It's the Update() method is what actually executes the filter. \
GetOutput() is just a getter method that returns a pointer.<o:p></o:p></p> </div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Can you provide a short code snippet so that we can see exactly \
how you are using vtkImageReslice?<o:p></o:p></p> </div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"> David<o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">On Fri, Jul 5, 2019 at 3:55 AM abhishek <<a \
href="mailto:abhishek@meddiff.com">abhishek@meddiff.com</a>> wrote:<o:p></o:p></p> \
</div> <blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in \
0in 6.0pt;margin-left:4.8pt;margin-right:0in"> <p class="MsoNormal">Hello Group, I am \
having performance issues while extracting SAGGITAL/CORONAL<br> planes using \
VTKImageReslice. Each call to VTKImageReslice->GetOutput()<br> takes 5-7 ms.<br>
<br>
The volume used has the following properties:<br>
1. Dimensions: 512x512x297<br>
2. Pixel spacing: 0.4x0.4x0.7<br>
3. Scalar type: Unsigned Int16<br>
4. Number of components: 1 (Monochrome).<br>
<br>
System & Build environment:<br>
1. Windows 7, 12GB RAM, i3 processor.<br>
2. Visual studio 2013<br>
2. VTK 7.1.1<br>
3. WPF for UI<br>
<br>
Are there any known considerations for making VTKImageReslice fast? <o:p></o:p></p>
</blockquote>
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