Table 4.

Segmentation results of ResUNet, ResUNet+ Channel Attention, ResUNet+ Spatial Attention, and WA-ResUNet (ResUNet+ Both of them) when the weight of all classes is 1 (The bold value is the optimal value).

		Uterine Wall	Uterine Cavity	Myomas of Uterus	Nabothian Cysts	Overall
IoU	No Attention	62.78	48.76	61.13	8.09	45.19
	Channel Attention	62.26	48.96	60.15	15.63	46.75
	Spatial Attention	63.40	45.25	62.07	14.37	46.27
	Both of them	63.65	44.17	59.50	20.25	46.89
Sensitivity	No Attention	81.05	53.58	81.45	17.04	58.28
	Channel Attention	82.1	54.89	80.30	19.41	59.18
	Spatial Attention	80.80	49.32	82.89	23.77	59.20
	Both of them	82.61	48.50	78.70	25.84	58.91
Precision	No Attention	73.59	84.40	71.03	13.02	60.51
	Channel Attention	71.03	81.08	69.74	51.36	68.30
	Spatial Attention	74.65	84.59	71.18	26.66	64.27
	Both of them	73.50	83.19	70.98	52.95	70.16