Hi, RTK forward projector only does the line integral of the volume. You should try to find what Plastimatch does exactly but I would try to add the following operations: - Make air at 0 (if HU, air is at -1000 so add 1000 to your input volume) - forward project - multiply by -1 and take the log All these operations can be pipelined with ITK filters except the forward projection. It sounds like a very nice project, thanks for doing it and please let us know how it goes. Simon
On Fri, Nov 20, 2020 at 7:40 AM [email protected] <[email protected]> wrote: > Hello, > > I'm making a DRR computation module for 3D Slicer and now the module > uses plastimatch reconstruct library for that purpose. > > As a alternative i think it will be good to use RTK forward projection > calculation as well. I've made a simple example and the first question > is how to fill the outer space of CT volume data to compensate borders > so the DRR image background was uniform, or is there any other way to do > such task? > > Source file, reconstructed images using plastimatch and RTK in attachment. > > Original DICOM data (anonymized): > https://github.com/MichaelColonel/SlicerTestData.git > > > Best regards, > > MIkhail Polkovnikov > > > _______________________________________________ > Rtk-users mailing list > [email protected] > https://public.kitware.com/mailman/listinfo/rtk-users >
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