[Rtk-users] Spiral CT

[Simon Rit]

Stay on the mailing list please. I don't understand your question... You
need to know the geometry of your system if that's what you mean. This is
usually not obtained by image registration but by a calibration procedure.
Simon

On Mon, Jan 6, 2020 at 2:38 PM Ali ghorbanian <e.a.gh72 at gmail.com> wrote:

> Tank You,
> Do I Need Registration and Matching Projection Before iterative
> Algorithms(conjugate gradient, ...) Run?
>
> On Mon, Jan 6, 2020 at 4:54 PM Simon Rit <simon.rit at creatis.insa-lyon.fr>
> wrote:
>
>> Hi,
>> There is no FBP implementation for spiral CT. The only way this could
>> work is with iterative algorithms (e.g., conjugate gradient) using Joseph
>> forward and backprojectors. Voxel-based backprojector (the default) won't
>> work because it does a bilinear interpolation on the projections. I don't
>> have an example available for you, sorry...
>> Cheers,
>> Simon
>>
>> On Mon, Jan 6, 2020 at 1:08 PM Ali ghorbanian <e.a.gh72 at gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I have a spiral model for CT  (Fan Beam) imaging; how can I reconstruct
>>> the output images with RTK?
>>>
>>> Tank you.
>>> _______________________________________________
>>> Rtk-users mailing list
>>> Rtk-users at public.kitware.com
>>> https://public.kitware.com/mailman/listinfo/rtk-users
>>>
>>
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