Figure 8.
A fragment of Z
0 of Fly and the corresponding 
(top), and a fragment of 
with the corresponding 
(bottom). For and , 50%-gray pixel color in the figure corresponds to value 0 in the data. Note how most of the signal of the sinogram fragments is not present in the convolved arrays, facilitating the estimation of the streak noise statistics. Although and look very similar, careful visual inspection reveals slight differences similar to those between 
in Figure 1 ▸ and 
in Figure 7 ▸.