Rhythm Analysis during Cardiopulmonary Resuscitation: Past, Present, and Future
Figure 5
The mixture model: combination of a human VF and a human CPR artifact recorded from a patient in asystole at different SNR.
(a) Two ECG segments independently recorded in humans during OHCA. The top panel shows the rhythm, a VF, and the bottom panel shows the CPR artifact recorded during asystole
(b) Linear mixtures of the original signals for three different corruption levels: low corruption (SNR = 6 dB) in the top panel, equal rhythm and artifact power (SNR = 0 dB) in the mid panel, and strong corruption (SNR = −6 dB) in the bottom panel