Sleep Staging Using Noncontact-Measured Vital Signs

Table 4

Features of BM.

Feature index	Feature name	Feature description
34		The proportion of body movement in the current epoch
35		The number of periods of successive one-value signal in the current epoch
36		Longest one period in epoch divided by 60
37		divided by
38–39		The proportion of body movement of epoch located, respectively, n ([1, 2]) epochs before the current one
40–41		The proportion of body movement of epoch located, respectively, n ([1, 2]) epochs after the current one