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Hello,<br>
Can you please confirm that the following classes are the ones used
for the iterative reconstruction:<br>
1 - SART: SARTConeBeamReconstructionFilter<br>
2- Conjugate gradient:
FourDConjugateGradientConeBeamReconstructionFilter<br>
<br>
Is there a 3D conjugate gradient?<br>
Are these the only classes for iterative reconstruction?<br>
<br>
Thanks,<br>
Johnson<br>
<br>
<div class="moz-cite-prefix">On 3/18/2016 4:12 AM, Cyril Mory wrote:<br>
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Hi Johnson,<br>
<br>
Regarding the iterative methods:<br>
- In SART, you can use the CUDA forward and back projectors, but
the rest of the calculation is performed on CPU. We do not use
SART a lot, so we have not fully optimized it. <br>
- Conjugate gradient, on the other hand, is entirely performed on
the GPU. Note that a regularized conjugate gradient reconstruction
filter is also available (with total variation denoising, wavelets
denoising, and positivity enforcement)<br>
<br>
I hope you will find what you need,<br>
Regards,<br>
Cyril<br>
<br>
<div class="moz-cite-prefix">On 03/17/2016 08:54 PM, Johnson
Keiriz wrote:<br>
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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">I
did rebuild and now things are working. I tested
reconstruction with and without the filtering and there
were differences. Though, I am not sure that filtering
have provided a better reconstruction.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I
want to experiment the iterative methods. Can you please
confirm for me which iterative method are fully
implemented in CUDA: is it the conjugate gradient or SART
?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I
have noticed that they are not wrapped at all, any guide
on how to introduce new filters?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Once
I have tested my wrapping, I will submit a github
pull-request. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Johnson<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>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:simon.rit@gmail.com">simon.rit@gmail.com</a>
[<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="mailto:simon.rit@gmail.com">mailto:simon.rit@gmail.com</a>]
<b>On Behalf Of </b>Simon Rit<br>
<b>Sent:</b> Thursday, March 17, 2016 1:54 PM<br>
<b>To:</b> Johnson Keiriz<br>
<b>Cc:</b> <a moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:rtk-users@public.kitware.com">rtk-users@public.kitware.com</a><br>
<b>Subject:</b> Re: [Rtk-users] Python Wrapping<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<div>
<div>
<p class="MsoNormal">Hi,<o:p></o:p></p>
</div>
<p class="MsoNormal">Good! Indeed, many things are not
wrapped. There is a trick regarding modifications of
the wrappings. You need to either start from scratch
the compilation or delete the file
SimpleRTK-prefix/src/SimpleRTK-stamp/SimpleRTK-configure.
This will trigger a reconfiguration of the SimpleRTK
and, hopefully, account for your modifications.<o:p></o:p></p>
</div>
<p class="MsoNormal">Don't hesitate to submit a github
pull-request when you have something working.<o:p></o:p></p>
</div>
<p class="MsoNormal">Simon<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">On Thu, Mar 17, 2016 at 4:33 PM,
Johnson Keiriz <<a moz-do-not-send="true"
href="mailto:jkeiriz@theobjects.com" target="_blank">jkeiriz@theobjects.com</a>>
wrote:<o:p></o:p></p>
<div>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="color:#1F497D">Hello again,</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="color:#1F497D">I found out about the json
wrapping files. I added the wrapping for all the
filters, but I haven’t noticed any effect from
setting the filters !!! </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="color:#1F497D">Any hints ?</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="color:#1F497D">Regards,</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="color:#1F497D">Johnson</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="color:#1F497D"> </span><o:p></o:p></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
Rtk-users [mailto:<a moz-do-not-send="true"
href="mailto:rtk-users-bounces@public.kitware.com"
target="_blank">rtk-users-bounces@public.kitware.com</a>]
<b>On Behalf Of </b>Johnson Keiriz<br>
<b>Sent:</b> Thursday, March 17, 2016 9:23 AM<br>
<b>To:</b> <a moz-do-not-send="true"
href="mailto:rtk-users@public.kitware.com"
target="_blank">rtk-users@public.kitware.com</a>;
Simon Rit<br>
<b>Subject:</b> [Rtk-users] Python Wrapping</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<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">Hello,
<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I
am using the Python wrapped version of RTK. I
have a question regarding the wrapping:<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">It
seems that not all functionality is available,
for example: for the <b>CudaFDKConeBeamReconstructionFilter,
</b>I was not able to set the cut frequency of
the any of the filters<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">(RamLaK,
Cosine, ShepLogan) except for the Hann . Are the
methods not wrapped ?<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thanks,<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Johnson<o:p></o:p></p>
<p class="MsoNormal"
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<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span
style="font-size:10.0pt;color:#1F497D" lang="EN-CA">Johnson Keiriz, PhD<br>
Senior Software Engineer</span></b><o:p></o:p></p>
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<p class="MsoNormal" style="line-height:normal"><b><span
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Keiriz,
PhD<br>
Senior Software Engineer</span></b></p>
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