 outlier values included in the filtered 0D projections. In at least one example embodiment of the computer-implemented method, calculating the at least one modified filtered back-projection density distribution indicative of low outlier values included in the filtered 0D projections comprises: defining at least one second look-up table that overweighs high outlier values in at least a relevant domain; defining an inverted second look-up table that is inverse to the second look-up table; determining, for each volume position in the reconstruction volume and for each 0D projection, two-dimensional in-plane coordinates by projecting the volume positions onto the projection plane defined by the 0D projections; determining, for each volume position in the reconstruction volume and for each 0D projection, a second modified weighted contribution of each of the filtered 0D projections, wherein determining the second modified weighted contributions includes evaluating the filtered 0D projections at the in-plane coordinates corresponding to the volume position and applying the second look-up table to the filtered 0D projections evaluated at the in-plane coordinates; and accumulating, for each volume position in the reconstruction volume, the second modified weighted contributions of the 0D projections corresponding to different projection planes and applying the inverted second look-up table to the result to yield the second modified filtered back-projection density distribution. The at least one 