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Studying the Effects of Pyramiding

Experiment 20112004-5

The rigid and affine transformations remained as before. At the stage of NRR, there was a gradual increase from 1 to 5 knot-points in each dimension; that's a total of 5 iteration.

Another 5 iteration were performed in the same manner but at a higher resolution (level 1, down (or up) from level 2).

The duration was about 15 minutes for the 20 or so iterations in total. The results were not as good as in the previous case. CSF in particular was still fuzzy. This is not surprising considering the fact that 10 iterations of NRR were used here, compared with 90 in the previous case.