[Rtk-users] Reconstruction problem of C-arm projections

[WANG Mengjiao]

Hi, all.
I am dealing with the fdk reconstruction of projections from a GE Innova 
4100IQ C-arm equipment. The rotational scan covered about 200 degree. 
SID = 720. SDD = 1195.
The detector is centered.
For the first try, I used the rtkfdk.exe for reconstruction, it popped 
up some output window. The program was still running, but never gave any 
reconstructed result.
For the second try, I changed the source code of rtkfdk.cxx by disabling 
the displaced detector filter and short scan filter. This time the 
program worked and gave me some
reconstructed images. But the images are very lousy.
Does anybody has clue for this situation?
PS: The rotational projections, the geometry file, and the screen shot 
of the reconstructed images can be downloaded by this link:
         https://www.dropbox.com/sh/y5iyfjtcc9i49n0/AXso1Lvbg3
Thanks in advance.
MJ