Improved ECG-Derived Respiration Using Empirical Wavelet Transform and Kernel Principal Component Analysis

Table 1

C, MSC, and IQR of the four EDR methods.

Method	EWT + KPCA	KPCA	RR interval	RPA
C	0.730	0.600	0.439	0.485
IQR (C)	0.685–0.808	0.706–0.498	0.6130–0.267	0.311–0.665
MSC	0.784	0.680	0.516	0.655
IQR (MSC)	0.755–0.897	0.626–0.782	0.657–0.400	0.504–0.780