Sleep Staging Using Noncontact-Measured Vital Signs
Table 2
Independent features of .
Feature index
Feature name
Feature description
1 (10)
Mean value of
2 (11)
Coefficient variation of : Standard deviation divided by mean
3–7 (12–16)
Ratio of percentile A and percentile B of :
8 (17)
Median absolute deviation of
9 (18)
Averaged cumulative difference: the moving average of the absolute difference between the former 30 seconds and the latter 30 seconds of for the range from to minutes
