Thank you Simon this is very practical!

 

Da: Simon Rit <simon....@creatis.insa-lyon.fr> 
Inviato: venerdì 11 ottobre 2019 13.10
A: gabriele.belotti.berg...@gmail.com
Cc: rtk-users <rtk-users@public.kitware.com>
Oggetto: Re: [Rtk-users] Half Fan dataset

 

Hi,

It's easy to generate, you need to offset your detector, either via the RTK 
geometry or by setting the first coordinate of the origin of your projection to 
something which makes the projection uncentered. For example, in the geometry :

rtksimulatedgeometry -n 180 --proj_iso_x 100 -o g

rtkprojectshepploganphantom -g g -o proj.mha

rtkfdk -p . -g g -r proj.mha -o fdk.mha

You can simulate from a CT image by following this example 
<http://wiki.openrtk.org/index.php/RTK/Scripts/ForwardProjection> .

Simon

 

On Fri, Oct 11, 2019 at 9:58 AM <gabriele.belotti.berg...@gmail.com 
<mailto:gabriele.belotti.berg...@gmail.com> > wrote:

Dear RTK users and developers,

I’m currently experimenting with FDK reconstruction and I’m struggling to find 
a Half-Fan projection dataset to fiddle around.. Do you know where I can find 
one? I’ve taken into consideration generating a set of DRRs from an existing 
phantom. Any help or advice you can give me would be greatly appreciated, 
thanks!

Gabriele Belotti

 

 

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