Hi Vincent, There is a way to do such a thing in rtkfdk with the --divisions option, see code here <https://github.com/SimonRit/RTK/blob/master/applications/rtkfdk/rtkfdk.cxx#L190-L196>.
I also don't really understand either what's going on in your bottom reconstruction, it seems to be a geometric problem. Have you checked an axial slice? Simon On Tue, Feb 11, 2020 at 4:21 PM vincent <v...@xris.eu> wrote: > Hello RTK community, > > I am afraid that my question might not be directly related to the > excellent implementation we are all using, but it might still be > interesting for some of you. > > I have a stack of 1500 projections of size 2048*2048. I obviously can't > reconstruct the full resolution volume on my graphics card, as it is too > big. So my solution was to split the sinogram into N parts, for which > each reconstructed volume would fit in my GPU memory and then reassemble > them. I did a test with a 700*820*900 sinogram, that I cut in two parts > of 700*410(+a small overlap)*900. > > While the reconstruction of the whole volume was acceptable, I got a > weird issue with the split ones: the one corresponding to the top of the > image is also ok, but the bottom one is very blurry. The three images > can be found at the following links: > > https://ibb.co/vLk9ZhQ > https://ibb.co/m4pm0LT > https://ibb.co/Jyf1yKM > > I used the same calibration parameters for the three reconstruction. I > visually checked the split sinograms and they looked fine. > > > Any insight will be much appreciated ! > > > Thanks in advance, > > kindest regards, > > Vincent > > _______________________________________________ > Rtk-users mailing list > Rtk-users@public.kitware.com > https://public.kitware.com/mailman/listinfo/rtk-users > >
_______________________________________________ Rtk-users mailing list Rtk-users@public.kitware.com https://public.kitware.com/mailman/listinfo/rtk-users
