U-NetF1_pix0.906F1_reg0.724F1_sam0.856NoteTraining with all mask annotations, costlySettingSetting5GroupF1_pixF1_regF1_samGroup10.9440.8540.928Group20.9190.6190.805Group30.9380.8290.929Group40.9610.8050.879Group50.7680.5160.74