[Rtk-users] CBCT Reconstruction problem

[dagetuo]

Dear RTK-users,

I have been trying to run the rtkfdk code for CBCT reconstruction but the result was not quite right.
I have attached a drawing of my setup and projections could be downloaded from: 
https://drive.google.com/drive/folders/1J0am5Hw67O8b5dmKNlEno4MOnbBZvsM0?usp=sharing



Description of our CBCT setup:
1. The distance from Source to Isocenter is 602.00mm
2. The distance from Isocenter to Imaging Surface of the Detector is 403.84mm
3. Detector physical size: 434mm*434mm
4. Image Resolution: 2816*2816
5. angle step = 1 degree, angular covered is 205 degrees. 

The original size of projections was 2816*2816 and I resized them to (256,256) for faster calculation. 

This is how I performed my reconstruction:
( rtksimulatedgeometry -n 205 -o I:\RTK140_build_git_for_test\bin\Debug\geo.xml --sdd=1005.84 --sid=602.0 --proj_iso_y=-128.0 --proj_iso_x=-128.0 --arc=205.0

rtkfdk --verbose 1 --path=I:\RTK140_build_git_for_test\bin\Debug\timo1 --regexp=DCM$ -o I:\RTK140_build_git_for_test\bin\Debug\test3.mha --hardware="cuda" -g I:\RTK140_build_git_for_test\bin\Debug\geo.xml --hann 1.0 --dimension 256,256,256

)

Could you please tell me if I am setting the geometry correctly?

Thank you in advance.




Chole
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