Scan 2 - motion (voxels): rot = 0.6; trans = 0.5; total = 0.8 
Scan 3 - motion (voxels): rot = 0.3; trans = 0.5; total = 0.6 
Scan 4 - motion (voxels): rot = 1.5; trans = 1.5; total = 2.1 
