Hybrid Feature Extraction of Pipeline Microstates Based on Φ-OTDR Sensing System

Table 1

Comprehensive comparison of hybrid features.

Method	Accuracy (%)	Recall (%)	F1 (%)
Kurtosis with RBF	52.16	49.55	50.82
Wavelet with SVM	79.17	77.97	78.56
Hybrid features with RF (PAR, STI-ZCR, FF)	98.56	98.21	98.38