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. Author manuscript; available in PMC: 2017 Oct 21.
Published in final edited form as: Phys Med Biol. 2016 Oct 3;61(20):7263–7281. doi: 10.1088/0031-9155/61/20/7263

Figure 2.

Figure 2

Schematic of multiresolution regularization scheme illustrating how the regularization over boundaries between the fine and coarse voxel grids is performed using interpolation operators.