Table 2.

Results from spontaneous breathing scenarios recorded in a NICU under visible light conditions.

Camera distance	Method	r	B	MAE	RMSE	σ
Close-view	CHROM	0.886	0.898	4.67	9.24	9.13
	PBV	0.871	0.868	5.31	9.53	9.49
	BMI	0.819	0.831	7.36	11.5	11.2
	BMF	0.783	0.808	9.09	14.7	14.3
Wide-view	CHROM	0.869	0.890	4.76	9.49	9.29
	PBV	0.855	0.861	5.46	9.72	9.77
	BMI	0.814	0.827	7.43	11.7	11.3
	BMF	0.776	0.813	9.17	14.8	14.4
Overall	CHROM	0.872	0.892	4.72	9.35	9.22
	PBV	0.862	0.864	5.39	9.66	9.67
	BMI	0.817	0.829	7.40	11.6	11.3
	BMF	0.780	0.811	9.13	14.8	14.4