Table 1.
Description of the raw dataset and the processed dataset. The numbers in the tables indicate the number of knee images used in each group.
| Group | Dataset | Images | KL-0 1 | KL-1 | KL-2 | KL-3 | KL-4 |
|---|---|---|---|---|---|---|---|
| Raw dataset | Chen et al., 2019 [4] | 9182 | 3253 | 1770 | 2578 | 1286 | 285 |
| Raw dataset | Private hospital | 376 | 58 | 65 | 95 | 113 | 45 |
| Training | Chen et al., 2019 [4] | 20,022 | 4422 | 4395 | 4262 | 4648 | 2295 |
| Validation | Chen et al., 2019 [4] | 1359 | 270 | 270 | 270 | 270 | 270 |
| Test | Private hospital | 225 | 45 | 45 | 45 | 45 | 45 |
1 Kellgren–Lawrence grading system, KL-0 (normal) to grade KL-4 (severe).