Hi Simon,
not only it is clear but it is also spot on !
Thank you very much for your help once again.
Best regards,
Vincent
On 28.08.20 14:13, Simon Rit wrote:
Thanks for the illustration. Maybe the detector is not oriented as
intended by RTK? If you look at the first drawing of the geometry doc
<http://www.openrtk.org/Doxygen/DocGeo3D.html>, I would question the
direction of the vector v. You can probably just flip it to put it in
the right direction? e.g. with
rtkfdk -p . -r ^proj.mha$ -g direct.xml --spacing 0.5 -d 300
--hardware cuda -o fdk.mha --newdirection 1,0,0,0,-1,0,0,0,1
--neworigin -140,151.6,0
which comes down to flipping the y axis after reconstruction without
the last two options. I think that the RTK coordinate system becomes
indirect if you flip this v axis which is probably ignored by your
visualization tool. I admit I realized only recently that I often
reconstruct data which are like this.
I hope I'm clear, if not that's probably because I don't master so
well all this...
Simon
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