FIG. 6.

Images of the colon containing labeled stool (a) with standard B40f reconstruction kernel and a line profile across stool-air interface, (b) with B40f reconstruction after projection space bilateral filtering with $w=5$, σ = 1.1, and (c) reconstructed with the unfiltered B10f kernel. (d) A profile along the line indicated in (a), showing the values (units of HU + 1024) for the B40f (○), B40f with denoising (◻), and B10f (▲). (e) Difference image between B40f and B40f with denoising reconstructions. (f) Difference image between B40f and B10f reconstructions. The difference images are at the same window and level settings.