Fig. 7
From: Fast time-varying linear filters for suppression of baseline drift in electrocardiographic signals

Histogram of errors after filtering with HP filter with attenuation −0.5 dB at cut-off frequency equal to heart frequency
From: Fast time-varying linear filters for suppression of baseline drift in electrocardiographic signals
Histogram of errors after filtering with HP filter with attenuation −0.5 dB at cut-off frequency equal to heart frequency