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Hi Arvid,<br>
<br>
Well, you're on the right track :-)<br>
Your Shepp Logan reconstruction looks fine, I guess it is just a
visualization problem: you can use vv <br>
<a class="moz-txt-link-freetext" href="http://www.creatis.insa-lyon.fr/rio/vv">http://www.creatis.insa-lyon.fr/rio/vv</a><br>
to open it and you will be able to change the "window" and "level"
settings in visualization.<br>
<br>
Regarding the cylinder, can you send your geometry file too ? <br>
<br>
Regards<br>
Cyril <br>
<br>
<div class="moz-cite-prefix">Le 12/10/2015 11:42, Arvid Piehl
Lauritsen Böttiger a écrit :<br>
</div>
<blockquote
cite="mid:CANBwxwHzOgP9hysAi5VTv0M7OaE2y31iSX6rinzh7jyr40Y3Sg@mail.gmail.com"
type="cite">
<pre wrap="">Hi there
I hope someone can help me me get started with RTK.
First of all I should mention that I have compiled RTK on Windows 7
using Visual Studio 2013. Everything seems to compile and run just
fine.
Secondly: I tried to reproduce this example:
<a class="moz-txt-link-freetext" href="http://wiki.openrtk.org/index.php/RTK/Scripts/FDK">http://wiki.openrtk.org/index.php/RTK/Scripts/FDK</a>
This was somewhat successful - I think. I could generate some
projections, and reconstruct them. However, it just looks like an egg
and not like a Shepp Logan phantom. See attachment.
However, I'm unsure if this is expected or not. I took some homemade
projections (of a small cylinder) and converted them into a MHA file
(using rtkprojections.exe). The file looks correct in ImageJ. The
dimensions are 370 pixels * 195 pixels * 361 projections
You can get the file here:
<a class="moz-txt-link-freetext" href="https://www.dropbox.com/s/p8tsgsh5xxb468f/cylinder.mha?dl=0">https://www.dropbox.com/s/p8tsgsh5xxb468f/cylinder.mha?dl=0</a>
The problem is that the reconstruction is wrong (see cylinder_recon).
It looks like the dimensions are not read correctly, but I am unsure
how I fix that? The rtkfdk.exe has a single --dimension parameter, but
I am unsure which dimension that is suppose to be, but neither 195,
370 or any other value I could think of works for me.
I hope someone can help me in the right direction.
best
Arvid
</pre>
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