[Rtk-users] How to fill an outer space with air in forward projection

[pmkclnl at yandex.ru]

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


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