[Rtk-users] Object isocenter shift

Chao Wu wuchao04 at gmail.com
Tue May 17 09:24:58 EDT 2016


There's nothing to correct or compensate for DURING reconstruction in your
case. Where you put your object dose not change the geometry of the CT
system at all. As long as the object is still inside FOV, a normal
reconstruction will give you a correct result. In the resulting image, the
origin is at the center of rotation, and the object is off-center by DX and
DY, that's it. If you want the origin to be at the center of the object,
you can shift it by DX/DY AFTER reconstruction.

Regards,
Chao

2016-05-17 13:07 GMT+02:00 AMJAD N <amjad.n.cet at gmail.com>:

> Hello,
>
> As my previous thread caused some confusion, I am attaching an image
> showing the same in detail.
>
> As you can see my object center is not aligned with isocenter line.
> Besides it is offset by DX and DY values. In my case you can see the object
> center as red dot.
>
> Is there any method in RTK to nullify this offset effect?
> Will the rotation of turntable affect the reconstruction due to this
> offset?
>
> _______________________________________________
> Rtk-users mailing list
> Rtk-users at public.kitware.com
> http://public.kitware.com/mailman/listinfo/rtk-users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/rtk-users/attachments/20160517/586c1147/attachment-0010.html>


More information about the Rtk-users mailing list