Table 4 The comprehensive comparison between our method and other research
References | Sensor type | Number of sensors | Data size | Number of identified postures | ACC (%) | Kappa | Notes |
|---|---|---|---|---|---|---|---|
[23] | Pressure sensors | 64 × 32 | 13 subjects | 3 (left, right and supine) | 82.7 | – | Large amount of sensors |
[24] | Textile pressure sensors | 64 × 27 | 12 subjects | 4 (left, right, supine and prone) | 97.9 | 0.972 | Complex system design |
[26] | Hard CC electrodes | 13 | 13 subjects | 4 (left, right, supine and prone) | 98.4 | 0.967 | Hard materials |
[33] | Pressure sensors | 14 × 32 | 180 subjects | 3 (left, right, and s/p, i.e., supine and prone were merged as one) | 94.1 | 0.866 | Large amount of sensors |
[34] | Long-narrow force sensors | 16 | 2 subjects | 3 (left, right and supine) | 78.7 | 0.681 | Data size is too small |
[35] | Hard CC electrodes | 20 × 15 | 5 subjects | 3 (left, right and supine) | 92.76 | – | Hard materials |
Proposed method | Flexible CC electrodes | 3 | 15 subjects | 3 (left, right and supine) | 96.2 | 0.943 | Non-contact soft materials |