ufo-kit/ufo-filters — pull request #15 by tomago (2014-03-27 10:07:02+00:00)
Title: Fix offsets in backproject kernels

The former code worked for a sinogram of fixed size. However it is possible to feed the task with only a part of a sinogram, e.g. reconstruct first half of the projections, then second. This is much more usable because one can really specify a span over projections which will be backprojected. Before one could have adjusted only the start.