Contactless Monitoring of Breathing Patterns and Respiratory Rate at the Pit of the Neck: A Single Camera Approach

Table 2

Dominant peak of the normalized PSD from the reference signal and the video signal () and relative estimated respiratory rate value.

		Trial
		1	2	3	4	5	6	7	8	9	10	11	12
Reference signal; —	Dominant; peak PSD; (Hz)	0.27	0.23	0.12	0.22	0.24	0.22	0.25	0.20	0.21	0.17	0.31	0.39
		—	—	—	—	—	—	—	—	—	—	—	—
		0.27	0.23	0.12	0.22	0.24	0.22	0.25	0.20	0.21	0.17	0.31	0.39
	Estimated; fR; (breaths/min)	16.11	13.92	7.32	13.18	13.18	13.20	15.01	12.09	12.82	10.25	18.31	23.44
		—	—	—	—	—	—	—	—	—	—	—	—
		16.11	13.92	7.32	13.18	13.18	13.20	13.20	12.09	12.82	10.25	18.31	23.44