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. 2021 Feb 6;21(4):1135. doi: 10.3390/s21041135

Figure 3.

Figure 3

An example of respiratory rate and tidal volume derived from a depth sensing system. (a) The volume signal obtained from a depth sensing camera. The signal was generated by the subject varying his tidal volume over time. (b) The raw and filtered respiratory rate from a depth system compared to a ventilator reference. (c) The tidal volume computed from the respiratory volume signal (peak to trough in (a)) compared to a ventilator reference.