[Rtk-users] Some glitches in the reconstruction of CB-CT [HELP]

[Simon Rit]

Hi,
Please use the mailing list (cc). You cannot expect a good reconstruction
from 36 projections only. Above and below the blue rectangle, you are not
in the field of view, i.e., in a region which is not seen by every
projection. One expect a good reconstruction in this region only.
Simon

On Tue, Mar 21, 2023 at 5:03 PM Jayroop Ramesh <b00057412 at alumni.aus.edu>
wrote:

> Dear Simon,
>
>                Good evening, and I would like to thank you for your
> efforts in maintaining the super helpful RTK software. I'm a graduate
> student at the American University of Sharjah, UAE.
>
> I am however noticing that outside the marked blue box (above and below
> the rectangle), the reconstruction does not appear to be perfect. I am not
> sure why this is, and the following are my commands:
>
> *rtksimulatedgeometry --output phase0_projs_geom -n 36*
>
> *rtkfdk --geometry phase0_projs_geom -p . -r phase0_projs.mhd -o
> recons_phase0_projs--spacing 1,1,2 --dimension 512,512,250 --hann 0.4
> --hannY 0.4 *
>
> I would really really appreciate your input. I consulted some clinical
> experts who said this reconstruction is imperfect, thank you! :)
>
> Sincerely,
> Jayroop Ramesh
>
>
> [image: image.png]
>
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