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Maxima and minima detection result.
| Illumination Light (Site) | Method | Maximum | Minimum | ||
|---|---|---|---|---|---|
| SE | PPV | SE | PPV | ||
| 660 nm (temple) | Shin’s method | 76.72% | 88.24% | 88.24% | 99.98% |
| The proposed method | 92.85% | 97.44% | 97.44% | 100% | |
| Ambient light (fingertip) | Shin’s method | 89.27% | 97.72% | 97.72% | 100% |
| The proposed method | 98.07% | 98.64% | 98.64% | 100% | |
