Table 3 Ablation study results.
Preprocessing configuration | F1 | Sen | Spec | Pre | Acc |
|---|---|---|---|---|---|
No preprocessing | 0.822 | 0.786 | 0.965 | 0.863 | 0.929 |
W/o cropping | 0.833 | 0.804 | 0.967 | 0.865 | 0.932 |
W/o head-pose standardisation | 0.895 | 0.911 | 0.970 | 0.879 | 0.955 |
W/o X-ray marker removal | 0.914 | 0.946 | 0.971 | 0.883 | 0.962 |
W/o hist equalisation | 0.926 | 0.893 | 0.991 | 0.962 | 0.970 |
Proposed preprocessing methods | 0.973 | 0.964 | 0.995 | 0.982 | 0.989 |