Step 2 of 4
Anomaly Detection
- Complexity:
- Medium
Description
DTW Signal Alignment
Dynamic Time Warping (DTW) is used to synchronize comparable inspection signals against a common reference while accounting for local differences in acquisition speed.
This makes local signal deviations easier to distinguish from simple positional misalignment.
Statistical Outlier Detection
After synchronization, Local Outlier Factor (LOF) is applied to identify signals that differ locally from the behavior observed across comparable tubes.
Rather than replacing expert diagnosis, the method highlights potentially anomalous sections and prioritizes them for targeted review by inspection specialists.
Geometry-Aware Comparison
Signals are compared within groups of tubes with similar geometry so that expected structural effects are separated as far as possible from atypical responses.
