[Rtk-users] Joseph back projection filter

[Simon Rit]

Hi Cyril,
I can't remember exactly, this backprojection filter is quite
experimental and not used a lot. After a quick check at the code, it
seems that I kept an image of the backprojection weights to accumulate
them and divide by their sum. The size of this image is taken from the
largest possible region.
Since this filter has been written, the behavior of the Joseph forward
projection filter has been given the possibility to be templated with
functors. I think the backprojection filter should be rewritten to use
that possibility.
Simon

On Wed, Jul 31, 2013 at 3:31 PM, MORY, CYRIL <Cyril.Mory at philips.com> wrote:
> Hi RTK users,
>
>
>
> I just ran into trouble with the Joseph back projection filter. It crashed
> with the error “Largest and buffered region must be similar”. The other back
> projection filters do not seem to have the same limitation, so I use
> VoxelBasedBackProjection and it works fine, but I’m curious why this check
> has been introduced in the Joseph back projection filter.
>
>
>
> Regards,
>
> ==========================================
>
> Cyril Mory
>
> PhD student at Philips Medisys and CREATIS
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