[Rtk-users] z - resolution ?

[Simon Rit]

Helllo Robert,
In RTK, the rotation axis is by default y so slice thickness would be y
resolution. I would indeed chose the v pixel spacing at the center of
rotation for the y direction spacing. For x and z (axial slice) pixel
spacing, it depends on both the detector pixel spacing in the u pixel
spacing and the number of projections around the object. I recommend
reading section 8d of
http://theses.insa-lyon.fr/publication/2016LYSEI085/these.pdf for a few
words on that.
Simon

On Thu, Mar 15, 2018 at 8:53 AM, "Robert Calließ" <Robert.Calliess at gmx.de>
wrote:

> Hello,
> I have a question according to the z resolution of reconstructed volumes.
> As far as I know, we do determine the xy resoltuion by dividing the
> detectors geometric pixel size by the geometric magnification ( sdd / sod).
> What about the z resolution ? Do we assume that it is like the resolution
> in
> x or y ? How to determine the maximum z slices.
>
> Then, is the z resolution the thickness of a slice or the distance between
> two
> adjacent slices ?
>
> Kind regards,
> Robert
>
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