Research Article
Determination of Lying Posture through Recognition of Multitier Body Parts
Table 1
The threshold and the duration for each tier.
| tier | threshold | duration | body parts |
| 1 | 500> | >5 minutes | head, shoulders, hip | 2 | 200~600 | 1~5 minutes | thigh, calf | 3 | 100~499 | < 1 minutes | hands, arms, legs, feet |
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