[Rtk-users] Rtk Detector Displacemets

louie L ghostcz at hotmail.com
Sun Dec 13 22:38:18 EST 2015



Sent from Mail for Windows 10


From: louie L
Sent: Monday, December 14, 2015 04:38
To: Freyman li
Subject: RE: [Rtk-users] Rtk Detector Displacemets

Hi,

Can you post your geometry file to the mail list? Your problem sounds like a result of wrong geometry settings.

Best regards,
Louie

Sent from Mail for Windows 10


From: Freyman li
Sent: Monday, December 14, 2015 04:25
To: Rtk-users at public.kitware.com
Cc: rtk-users at openrtk.org
Subject: [Rtk-users] Rtk Detector Displacemets

Dear rtk-users,

I have generated the geometry XML file by using the geometry calibration in my CBCT system. And I want to reconstruct the volume from 360 raw projections data.
But after running the rtkfdk.cxx, I get an output message that "Cannot account for too large detector displacements, a part of space must be covered by all projections."
And I try to use the addprojection function to generate a simple geometry structure using only SID and SDD, this problem did not happen but the reconstruction result is not correct.
How can I solve this problem? Is there any limitation about the detector weighting?

I really appreciate any help you can provide.

With regards,
Freyman li



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