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CERN / TIGRE

TIGRE: Tomographic Iterative GPU-based Reconstruction Toolbox
BSD 3-Clause "New" or "Revised" License
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2D Fan-beam or parallel-beam SART-TV algorithm #537

Closed GreameLee closed 2 weeks ago

GreameLee commented 2 months ago

It seems like the ART reconstruction algorithm family can only be used in con-beam reconstruction. Our research is based on 2-D CT scan, so can you consider that transfer those algorithms into a 2D version?

AnderBiguri commented 2 months ago

Hi @GreameLee

Is it only SART-TV, or is it all of them? Most of them should work.

GreameLee commented 2 months ago

You mean most of ART family algorithms can work on parallel-beam? if so, what is the meaning of the ALPHA in "SART(PROJ,GEO,ALPHA,NITER)"? I thought it was the cone angle in 3D geography

AnderBiguri commented 2 months ago

@GreameLee nope, all the geometry is defined within the geo parameter, except the angles, which used to be defined as alpha before, and there is some residue in the documentation still calling them that.