Hi,

I am executing the MultiResMIRegistration software with the following parameter file:

Axialsaggre711-05082006.img
interpolatedPerfusion711-05082006.img
0 1 2
0 0 0
5
4 4 1
8 8 1
2500 2500 2500 2500 2500
1e-6 1e-6 5e-6 5e-6 5e-7
320
Reg_perfusion711-05082006.img

I ran the same script a few times and observed that in each run the values of the Final Parameters and the Overall transform matrix in the output were quite different. The Overall Tranform set seems reasonably close though. For example:

Run 1:

Final parameters: [-0.00351486, 0.000741038, 0.000685894, 0.999993, 0.533468, -2.82873, 1.43219]
Overall transform matrix:
0.999998 -0.00137699 0.00147724
0.00136657 0.999974 0.00703069
-0.00148689 -0.00702866 0.999974

Overall transform offset:
[40.5209, -3.84145, -95.5383]
===========================================================
Run 2:

Final parameters: [-0.00274307, 0.00195265, -0.000717365, 0.999994, -1.14514, -1.45365, 2.23317]
Overall transform matrix:
0.999991 0.00142401 0.00390921
-0.00144543 0.999984 0.0054833
-0.00390134 -0.0054889 0.999977

Overall transform offset:
[38.1756, -2.02425, -94.7227]

What is the reason for this inconsitency? How can this be solved?

Thanks a lot in advance.

Sincerely,
Dhiral Phadke.