Table 6. Average values of PRI, VOI and Jaccard for the five algorithms on four types of image sequences.
| Types | Measures | ACM | Watershed | RG | Level set | GSLIC-SGNF |
|---|---|---|---|---|---|---|
| Without- | PRI | 0.9581 | 0.9486 | 0.9611 | 0.9474 | 0.9624 |
| nodules | VoI | 1.779 | 2.283 | 1.754 | 1.4535 | 1.3815 |
| Jaccard | 0.9375 | 0.9252 | 0.9385 | 0.9267 | 0.941 | |
| Benign- | PRI | 0.8624 | 0.8964 | 0.9285 | 0.8695 | 0.9465 |
| nodules | VoI | 1.9532 | 2.369 | 2.7471 | 1.8382 | 1.6515 |
| Jaccard | 0.8845 | 0.8972 | 0.9238 | 0.8758 | 0.9342 | |
| Malignant- | PRI | 0.8948 | 0.9025 | 0.9094 | 0.8989 | 0.9169 |
| SPN | VoI | 1.9875 | 2.6475 | 2.8305 | 1.8975 | 1.8195 |
| Jaccard | 0.8708 | 0.8636 | 0.902 | 0.8361 | 0.9257 | |
| PRI | 0.8556 | 0.8629 | 0.8505 | 0.8636 | 0.8926 | |
| Pleural- | VoI | 3.825 | 3.323 | 4.152 | 2.8136 | 2.2052 |
| nodules | Jaccard | 0.8122 | 0.8535 | 0.7934 | 0.8242 | 0.8821 |