Hi Fredrik, If the geometry and projection angles are known in advance, I think it is possible to perform FDK online. Regards, Chao
2018-02-22 11:11 GMT+01:00 Fredrik Hellman <[email protected]>: > Hi, > > I am wondering if it is possible to do "online" reconstruction with RTK > using FDK backprojection, i.e. that you populate the geometry object angle > by angle and backproject only one or a few projections at a time with the > geometry object not fully populated initially. > > I have seen that the backprojection can be done projection by projection, > but it seems that the geometry object must be populated with all angles > before starting. For example in the code for parker weighting, it seems > that the overscan angle is estimated based on the actual angles in the > geometry object. Also, computing the angular gap weighting done in the 2D > weighting depends on adjacent angles. > > Best regards, > Fredrik Hellman > > _______________________________________________ > Rtk-users mailing list > [email protected] > https://public.kitware.com/mailman/listinfo/rtk-users > >
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