Table 4 Average error [cpm], \(\mu _{\bar{E}}\) with \(\sigma _{\bar{E}}\,\)in paranthesis, for different disturbances for groups of test persons
From: Chest compression rate measurement from smartphone video
Disturbances | Short hair/hair up | Short + medium hair | Short, medium + long hair |
|---|---|---|---|
Backgr. dist. | 5.1 (0.43) | 8.2 (4.2) | 18.4 (20.8) |
Bad pos. | 3.8 (2.65) | 4.3 (2.0) | 17.1 (29.1) |
Dist + bas pos. | 7.5 (2.77) | 12.5 (9.0) | 24.6 (24.8) |
30:2 + dist. | 18.5 (5.25) | 23.6 (7.9) | 28.6 (13.7) |
Var. light | 2.9 (0.96) | 12.2 (16.8) | 15.0 (17.7) |
Other activities | 38.1 (13.6) | 26.7 (18.7) | 28.5 (18.3) |