[Rtk-users] Object isocenter shift

[Simon Rit]

Hi,
I don't understand the question. The isocenter is by definition the center
of rotation in RTK and we assume it's at the origin of the reconstructed
volume. There is no such thing as an "object isocenter".
DX and DY values are the shift of the projection origin (which can be
anywhere) with respect to the central ray (source to isocenter ray). It is
not the turntable isocenter. If you want to have dx=0 and dy=0, the
projection origin must be changed. But it has to be constant for the whole
projection stack.
I hope it helps,
Simon

On Fri, May 13, 2016 at 10:30 AM, AMJAD N <amjad.n.cet at gmail.com> wrote:

> Hello users,
> During acquisition it is found that my object isocenter is shifted from
> turntable isocenter by DX  and DY values. Source , turntable isocenter and
>  detector center is aligned perfectly. Is there any method in RTK we can
> make use of to nullify the effect due to this isocenter shift?
>
> Thanks and Regards
> AMJAD
>
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