Table 1 The four adopted performance metrics for the quantitative evaluation
Performance Metric | Definition | Equation |
|---|---|---|
Accuracy | Correctness of the overall Segmentation | \(\frac{TP + TN}{{TP + TN + FP + FN}}\) |
DSI | Amount of overlap between the two segmentations | \(\frac{2 \times TP}{{2 \times TP + FP + FN}}\) |
FPR | Number of pixels incorrectly segmented | \(\frac{FP}{{FP + TN}} = \, 1 - Specificity\) |
FNR | Number of pixels incorrectly rejected | \(\frac{FN}{{FN + TP}} = \, 1 - Sensitivity\) |
Sensitivity | Number of pixels segmented correctly | \(\frac{TP}{{TP + FN}}\) |
Specificity | Number of pixels excluded correctly | \(\frac{TN}{{TN + FP}}\) |