. Author manuscript; available in PMC: 2021 Nov 12.

Published in final edited form as: IEEE Trans Med Imaging. 2021 Oct 27;40(11):3154–3164. doi: 10.1109/TMI.2021.3076191

TABLE II.

Ablation Study on Our MDPET in Terms of Motion Estimation. ± LSTM Means MDPET With or Without BiConvLSTM and ± GAN Means MDPET With or Without Adversarial Learning.

NMAE	Gate 1	Gate 2	Gate 3	Gate 4	Gate 5	Gate 6	GPU sec	CPU sec
Ours-LSTM-GAN	0.1283	0.0849	0.0660	-	0.0701	0.1010	0.38	36
Ours+LSTM-GAN	0.1116^*	0.0762^*	0.0588^*	-	0.0623^*	0.0920^*	0.54	59
Ours+LSTM+GAN	0.1098^*	0.0749^*	0.0582^*	-	0.0619^*	0.0908^*	0.54	59

^“*”

Means the Difference to the Baseline (1st Row) Are Significant at p < 0.05