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<div class="moz-cite-prefix">Hi Simon,</div>
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<div class="moz-cite-prefix">I am afraid I was no clear enough.
Please find a picture of the real object and the reko at that
link:</div>
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<div class="moz-cite-prefix"><a class="moz-txt-link-freetext" href="https://www.dropbox.com/sh/ul0oy9kv3us4ey7/AABQ5Y4R1PR-jcRawGFKOUK4a?dl=0">https://www.dropbox.com/sh/ul0oy9kv3us4ey7/AABQ5Y4R1PR-jcRawGFKOUK4a?dl=0</a></div>
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<div class="moz-cite-prefix">So you can see that on the part, the
serial number is on the "head" side while it is on the "tail" side
on the reconstruction, using the "direct" geometry. That is what
I call the mirror image. The rotation axis is along the vertical
direction of the image. I could easily reorder the reconstructed
slice to get it in the right orientation, but I was wondering
where the issue comes from.</div>
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<div class="moz-cite-prefix">Best regards,</div>
<div class="moz-cite-prefix">Vincent<br>
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<div class="moz-cite-prefix">On 28.08.20 12:13, Simon Rit wrote:<br>
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<blockquote type="cite"
cite="mid:CAF0oig1O2vn+71a4Y9FoWnPEQVT-_PpiBZZ3nZSWq-+nNQ54Sw@mail.gmail.com">
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<div dir="ltr">Mirror in which direction? Depending on the
direction, it can also be a 180° offset of the angle. If it
reconstructs well, I would assume that the direct direction is
the correct one but there is something else you need to
understand...<br>
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<div dir="ltr" class="gmail_attr">On Fri, Aug 28, 2020 at 10:44
AM Vincent Libertiaux <<a href="mailto:vl@xris.eu"
moz-do-not-send="true">vl@xris.eu</a>> wrote:<br>
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0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p>Hi Simon,</p>
<p>thank you for testing my dataset.</p>
<p>I get the same results you describe and I am quite happy
with the first result. However, the reconstructed volume
is a "mirror" view of the real object, and my guess was
that the rotating plate was going in the opposite
direction assumed by rtk. Is it the wrong assumption? <br>
</p>
<p>Thank you again for your help,</p>
<p>best regards,</p>
<p>Vincent<br>
</p>
<p><br>
</p>
<div>Thanks for the dataset. When I run</div>
<div><span style="font-family:monospace"> rtkfdk -p . -r
^proj.mha$ -g direct.xml --spacing 0.5 -d 300 --hardware
cuda -o fdk.mha</span></div>
<div>The result looks good to me. Obviously, when I run</div>
<div><span style="font-family:monospace"> rtkfdk -p . -r
^proj.mha$ -g inverse.xml --spacing 0.5 -d 300
--hardware cuda -o fdk.mha</span></div>
<div>the result is bad since the correct rotation direction
seems to be the direct one. Did you expect the second line
to produce the correct result? Or is the first line not
producing a good enough result in your opinion?</div>
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