[Rtk-users] Offset detector with ADMM - hole in centre

[Korte James]

Hi,

I am having issues with an artifact (black hole in the centre) in my ADMM reconstructions when using an offset detector. I have tested the same projection set and geometry file with the FDK algorithm and the reconstruction is fine.

I've previously been using the same workflow with a centred detector, with no issues, for both the FDK and ADMM reconstruction methods.

Are there any known issues/common pitfalls with the ADMM implementation and detector offsets?

Cheers,
James
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