Table 8 Feature groups table.
From: Optimal Multi-Stage Arrhythmia Classification Approach
Feature Group | Feature Description | Number of Features |
|---|---|---|
1 | Ventricular Rate, Atrial Rate, QRS Duration, QT Interval, R axis, T axis, QRS count, Q Onset, Q Offset | 11 |
2 | Mean of RR intervals, Variance of RR intervals, RR interval count, mean and variance of height, width, prominence for QRS complex, non-QRS peaks, and valleys in lead II | 23 |
3 | Features in Group 1, mean of RR, variance of RR interval, RR interval count, mean and variance of height, width, prominence for QRS complex, non-QRS peaks, and valleys in lead II | 32 |
4 | Mean of RR interval, Variance of RR interval, RR interval count, mean and variance of height, width, prominence for QRS complex, non-QRS peaks, and valleys in all leads | 221 |
5 | Features in Group 1, Mean of RR interval, Variance of RR interval, RR interval count, mean and variance of height, width, prominence for QRS complex, non-QRS complex, and valleys in all leads | 230 |
6 | For lead II ECG, a total of 900 frequencies of height, width, prominence for QRS complex, non-QRS peaks, and valleys; a total of 600 frequencies of location difference for QRS complex Vs QRS complex, non-QRS peaks Vs non-QRS peaks, valleys Vs valleys, QRS complex Vs non-QRS peaks, QRS complex Vs valleys, and non-QRS peaks Vs valleys; a total of 1800 frequencies including ratio between difference in heights and difference in locations, between difference in width and difference in locations, between difference in prominence and difference in locations, for QRS complex Vs QRS complex, non-QRS peaks Vs non-QRS peaks, valleys Vs valleys, QRS complex Vs non-QRS peaks, QRS complex Vs valleys, and non-QRS peaks Vs valleys. | 3,302 |
7 | Features in Group 2 and Group 6 | 3,323 |
8 | Features in Group 1, Group 2, and group 6 | 3,332 |
9 | Features in Group 6 in all leads | 39,602 |
10 | Features in Group 4 and Group 9 | 39,821 |
11 | Features in Group 3 and Group 9 | 39,830 |
