Table 5.

The results of ablation experiments on the mouse brain dataset.

Methods		Average dice score (%)
ANTs(SyN)		86.6761
VoxelMorph		87.3396
VoxelMorph-Diff		87.3958
Hierarchical-Only	Progressive-Only	Average dice score (%)
√		87.5124
	√	I_N: 1	I_N: 2	I_N: 3	I_N: 4	I_N: 5
		86.797	87.582	87.806	87.859	87.870
√	√	87.9893

The hierarchical-only and progressive-only stand for the two constructed competing methods, the last row indicates the proposed method contained both progressive and hierarchical registration strategies. I_N means the number of test iterations. The bold values indicate the best indicators.