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The extracted features.
| Temporal features | Spectral features |
|---|---|
| Shannon entropy (#1) | Power of 0.5–15 Hz band (#1) |
| Gini index (#1) | Power of 1–4 Hz band (#1) |
| Standard deviation (#1) | Spectral entropy (#1) |
| Skewness (#1) | Dominant frequency and its power (#2) |
| Kurtosis (#1) | Second dominant frequency and its power (#2) |
| Peak to peak of the angular velocity (#1) |
The numbers indicate the number of extracted features from each axis.
