Consider merging Paganin and Filtering
The Paganin processing takes place in the "radios" domain: a 2D filter is applied to each radio.
The projections filtering takes place in the sinogram domain: each sinogram is filtered with a 1D filter.
We might benefit from performance gains if the two filters were merged together. However there are two difficulties:
- It might impact the existing reconstruction design
- Mathematically, merging the two filters is not straightforward because of the non-linear
-log
operation after Paganin filtering ofI/I0
.