[Rtk-users] problem while determining the interpolation weights in 4D ROOSTER Reconstruction

[Cyril Mory]

Hi Ruoyan,


I've had a look at your file sphase.txt, it looks perfectly fine to me. 
The problem must lie elsewhere. Does the application 4D ROOSTER work 
with the example data provided on the wiki ? If it does, then the 
problem lies in your data. In that case, please run


rtkprojections --path D:\bd\20171116 --regexp .*.his -o projections.mhd


and send us the "projections.mhd" file. It will contain only the 
metadata of your projections, and we'll be able to run the same command 
line as you and try to reproduce the problem.


If, on the other hand, it doesn't even work with the example data 
provided on the wiki, it is a software problem. In that case, can you 
first update to the latest RTK (the git master branch), recompile and 
test again ?


Best regards,

Cyril


On 26/12/2017 10:47, ry.meng wrote:
> Hi
>
> Thank you for your reply. I have checked the value in sphase.txt and 
> don't have any value larger or equal to 5. Maybe the problem lies 
> elsewhere? Thanks.
>
> Regards
>
> Ruoyan Meng
>
> On 12/26/2017 17:14，Simon Rit<simon.rit at creatis.insa-lyon.fr> 
> <mailto:simon.rit at creatis.insa-lyon.fr> wrote：
>
>     Hi,
>     If you look at the code
>     <https://github.com/SimonRit/RTK/blob/master/code/rtkPhasesToInterpolationWeights.hxx#L154>,
>     you'll see that the error message corresponds to the case where
>     you have a phase which equals the number of frames. This cannot be
>     since it is 0-based. In other words, with the option "--frames 5",
>     you cannot have a value larger or equal to 5 in your file sphase.txt.
>     Simon
>
>     On Mon, Dec 25, 2017 at 9:36 AM, ry.meng <ry.meng at siat.ac.cn
>     <mailto:ry.meng at siat.ac.cn>> wrote:
>
>
>         Hi:
>         When I tried  the application of 4D ROOSTER Reconstruction
>         with my own data, it will stop for the following reason:
>         problem while determining the interpolation weights. Maybe you
>         guys have met this problem before and have a solution for
>         it. Thank you very much and I hope to receive your reply soon.
>
>
>         Happy Holidays!
>
>
>         Regards
>
>         Ruoyan Meng
>
>         ------------------------------------------------------------------------------------------
>
>         Research Center for Medical Robotics and Minimally Invasive
>         Surgical Devices,
>         Institute of Biomedical and Health Engineering,
>         Shenzhen Institutes of Advanced Technology, Chinese Academy of
>         Sciences
>         Tel: +86-18576617767 <tel:+86%20185%207661%207767>
>         Email: ry.meng at siat.ac.cn <mailto:qs.zhu at siat.ac.cn>
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