[Rtk-users] FirstReconstruction questions

[Simon Rit]

Hi,
constantImageSource creates a constant volume. In the example, one is used
as input of the simulation of projections of an ellipsoid (rei) and one as
input of the reconstruction algorithm (feldkamp). fieldofview masks out
(i.e., set to 0) voxels which are not in the field of view.
I don't understand your screenshot either but if you use the tiff format,
make sure you use a viewer capable of dealing with 3D tiff images (e.g., vv
<http://vv.creatis.insa-lyon.fr> or ImageJ).
Simon

On Wed, Dec 9, 2020 at 8:59 AM Lai Yao Hao <yao_hao777 at hotmail.com> wrote:

> Hi to all the rtk-users
>
> I am a new user of rtk, and I have some questions regarding the
> FirstReconstruction example given in github. I have generated an image as
> attached, with 4 tiny ball-like drawing hanging from the top. Can anyone
> explain to me why do I get such image and what are the implications of
> constantImageSource, rei, constantImageSource2, feldkamp and fieldofview?
>
> Your explanation will be much appreciated. Thanks in advance!
>
> Regards
> lyh
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