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Hi Shiras,<br>
<br>
First, you need to checkout and compile the "rayBasedIterator"
branch. <br>
<br>
Then, your geometry file must only contain<br>
<br>
<RadiusCylindricalDetector> <br>
some value<br>
</RadiusCylindricalDetector><br>
<br>
and it will automatically be handled correctly. <br>
<br>
However, not all forward and back projectors have been modified to
handle the curved detector geometry, and only iterative
reconstruction methods will work (FDK with a curved detector hasn't
been implemented yet).<br>
So you can use:<br>
- rtksart<br>
- rtkconjugategradient<br>
- rtkregularizedconjugategradient<br>
- rtkadmmtotalvariation<br>
- rtkadmmwavelets<br>
and you need to set the forward projection operator ("--fp" option)
to either Joseph or CudaRayCast, and the back projection operator
("--bp" option) to Joseph.<br>
<br>
We plan to update the existing forward and back projectors so that
as many as possible can handle both flat and curved detectors, but
at the moment only this limited list will work. <br>
<br>
Regards,<br>
Cyril<br>
<br>
<div class="moz-cite-prefix">On 12/02/2016 10:50 AM, Shiras
Abdurahman wrote:<br>
</div>
<blockquote
cite="mid:CACHVGWNXp_fiFKPf8xZuQE8Kk1SMMafpxg21Po-dg-VLP2WRcg@mail.gmail.com"
type="cite">
<div dir="ltr">Hi Simon,
<div><br>
</div>
<div>I am using the latest version of RTK, downloaded from Git.
How can I reconstruct the projection data from curved
detector? Regarding geometry, do I need to specify additional
parameters other than the current nine parameters? Is it also
possible to forward project the volume to a curved detector?</div>
<div><br>
</div>
<div>With regards,</div>
<div>Shiras</div>
</div>
<br>
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