Table 6:

System-level comparison of various TransMorph designs and the customized VoxelMorph on the validation and test datasets of inter-patient MRI, atlas-to-patient MRI, and XCAT-to-CT registration tasks. ”Val. DSC” denotes the Dice scores on the validation dataset; “Test DSC” denotes the system-level comparison of the Dice scores on the test dataset. The bolded numbers denote the highest scores, while the italicized ones indicate the second highest.

	Inter-patient MRI		Atlas-to-patient MRI		XCAT-to-CT
Model	Val. DSC	Test DSC	Val. DSC	Test DSC	Val. DSC	Test DSC
w/o conv. skip.	0.753±0.119	0.743±0.124	0.752±0.129	0.754±0.125	0.591±0.319	0.586±0.314
w/o Trans. skip.	0.740±0.124	0.727±0.130	0.734±0.127	0.736±0.125	0.578±0.315	0.588±0.314
w/ shuffling	0.755±0.119	0.744±0.125	0.751±0.127	0.754±0.123	0.588±0.314	0.597±0.310
w/ rel. positional bias	0.755±0.120	0.742±0.125	0.751 ±0.131	0.753±0.127	0.593±0.315	0.592±0.319
w/ lrn. positional embedding	0.755±0.120	0.744±0.125	0.749±0.131	0.751±0.129	0.594±0.315	0.586±0.315
w/ sin. positional embedding	0.755±0.120	0.744±0.125	0.752±0.126	0.754±0.123	0.583±0.320	0.572±0.317
TransMorph	0.756±0.119	0.745±0.125	0.753±0.127	0.754±0.124	0.600±0.317	0.604±0.314
TransMorph-tiny	0.710±0.132	0.696±0.140	0.545±0.180	0.543±0.180	0.502±0.311	0.501±0.312
TransMorph-small	0.751±0.121	0.740±0.126	0.746±0.128	0.747±0.125	0.572±0.320	0.570±0.318
TransMorph-large	0.757±0.119	0.746±0.124	0.753±0.130	0.754±0.128	0.608±0.305	0.611±0.311
VoxelMorph-huge	0.755±0.119	0.744±0.124	0.750±0.133	0.751±0.130	0.543±0.320	0.550±0.319