Table 1 Performance evaluation of meniscus segmentation according to labeled data and unlabeled data ratios in supervised and semi-supervised learning network

Methods Network Ratio(%) Metrics(%)
Labeled Unlabeled Balanced accuracy F1-score Recall Precision
Supervised learning 2D nnU-Net[18] 22 - 94.42±2.0 89.40±1.6 89.16±4.2 90.09±4.8
83 - 96.07±1.7 90.95±1.9 92.48±3.7 89.86±5.2
Semi supervised learning MT[15] 22 63 94.92±2.0 89.90±1.9 90.17±4.2 90.06±5.1
MT+AMB 94.92±1.6 83.27±3.9 90.75±3.4 77.47±7.6
MT+AMB+ws 95.09±1.7 89.18±1.9 90.59±3.7 88.20±5.2
MT+AMB+wt 95.56±1.8 89.72±1.8 91.52±3.8 88.39±5.1
MT+AMB+ws+wt 96.42±1.6 90.02±2.1 93.28±3.5 87.39±5.6
MT+AMB+ws+wt 22 226 96.87±1.6 88.81±2.6 94.32±3.4 84.35±6.3
MT+AMB+ws+wt 83 165 97.02±1.5 91.11±2.3 94.45±3.2 88.39±5.8