[Insight-users] ring artifacts in CT

[Sergio Vera]

It seems to me,
after seeing that image, my first thought is that some filtering based on
fourier analysis might help.
At least when dealing with 2D images.

Regards

On Tue, Apr 27, 2010 at 9:27 PM, somi <seesomi at gmail.com> wrote:

> Hi,
> I have some CT images which are severely degraded by ring artifacts during
> acquisition .
> The ring artifact looks something like :
> http://www.upstate.edu/radiology/rsna/ct/images/artifact4.jpg (not my
> image) , its more severe in my images.
>
> Has anybody encountered similar artifacts ? Is there is any out of the box
> way to remove them ?
>
> Regards,
> Somi
>
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-- 
Sergio Vera

Alma IT Systems
C/ Vilana, 4B, 4º 1ª
08022 Barcelona
T. (+34) 932 380 592
www.alma3d.com
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