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Hi, <br>
<br>
It looks like the geometry is wrong indeed, because I have never
seen such artifacts.<br>
<br>
Hope that helps,<br>
Cyril<br>
<br>
<div class="moz-cite-prefix">Le 19/01/2016 16:19, MG Vallet a
écrit :<br>
</div>
<blockquote
cite="mid:CACy6zz+f3ftB1x2r+StyBwyCYu6Z63FKeMDe_1h-wO2dgsvMJA@mail.gmail.com"
type="cite">
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<div dir="ltr">Dear rtk-users,
<div><br>
</div>
<div>I applied the <font color="#000000" face="Courier New"><span
style="font-size:12px">FDKConeBeamReconstructionFilter to
a data set from </span></font><span
style="color:rgb(51,51,51);font-family:Roboto,sans-serif;font-size:14px;line-height:20px"><a
moz-do-not-send="true"
href="https://zenodo.org/record/16539"><a class="moz-txt-link-freetext" href="https://zenodo.org/record/16539">https://zenodo.org/record/16539</a></a>. </span></div>
<div><span
style="color:rgb(51,51,51);font-family:Roboto,sans-serif;line-height:20px">This
is a plastic tube filled with glass beads that has been
scanned.</span></div>
<div><span
style="color:rgb(51,51,51);font-family:Roboto,sans-serif;line-height:20px"><br>
</span></div>
<div><span
style="color:rgb(51,51,51);font-family:Roboto,sans-serif;line-height:20px">Attached
is a view of the reconstructed central slice. It is found
that:</span></div>
<div>
<ol>
<li><font color="#333333" face="Roboto, sans-serif"><span
style="line-height:20px">the beads are quickly
deformed outside the center</span></font></li>
<li><font color="#333333" face="Roboto, sans-serif"><span
style="line-height:20px">each one has a halo, or a
shadow (dont know the proper term)</span></font></li>
</ol>
</div>
<div><span
style="color:rgb(51,51,51);font-family:Roboto,sans-serif;line-height:20px">My
question is if these are simply expected artifacts. </span><span
style="color:rgb(51,51,51);font-family:Roboto,sans-serif;line-height:20px">I
am not 100% sure I properly set the geometry parameters.</span></div>
<div><span
style="color:rgb(51,51,51);font-family:Roboto,sans-serif;line-height:20px"><br>
</span></div>
<div><span
style="color:rgb(51,51,51);font-family:Roboto,sans-serif;line-height:20px">Regards,</span></div>
<div><span
style="color:rgb(51,51,51);font-family:Roboto,sans-serif;line-height:20px">mgv</span></div>
</div>
<br>
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</blockquote>
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