Figure 17
From: Optimal Multi-Stage Arrhythmia Classification Approach
Empirical frequency distribution of valleys height, width, and prominence in lead II. The Y-axis presents the frequencies of height, width and prominence, and X-axis presents the scale that measures height, width and prominence of valleys. The unit step of X-axis is (the maximum of height, width or prominence - the minimum of height, width or prominence)/100.The frequencies shown in the rows named SR, AFIB, GSVT, and SB were computed from ECGs presented in Fig. 10,11,12,13 respectively. The full demonstration for feature extraction from 12 leads ECG can be found in Supplementary section B.
