Table 2. Results for respiratory rate estimation in videos from rats.

Rodent ID	Mean RR (breaths/min)		RMSE	$\overline{\epsilon }$ (%)	${\epsilon }_{90}$ (%)	Correlation
	IMG	REF	(breaths/min)
R1	51.16	51.15	0.30	0.00	0.01	0.98
R2	42.13	42.11	0.20	0.00	0.01	0.96
R3	53.84	53.61	0.29	0.00	0.01	0.97
R4	43.59	43.55	0.24	0.00	0.01	0.96
R5	49.45	49.37	0.42	0.01	0.01	0.97
R6	61.55	61.54	0.50	0.01	0.01	0.96
Mean ± SD	50.29±7.10	50.22±7.09	0.32±0.11	0.01±0.00	0.01±0.00	0.97±0.01

IMG: Image-derived, REF: Reference Measurement, $\overline{\epsilon }$: mean relative error, ${\epsilon }_{90}$: 90th percentile of the relative errors