Research Article
Rolling Bearing Diagnosis Based on Adaptive Probabilistic PCA and the Enhanced Morphological Filter
Table 1
Classification of the morphology operators.
| Noise reduction-type operations | Feature extraction-type operations |
| Dilation | MG (dilation-erosion) | Erosion | WTH (signal-opening) | Opening | BTH (closing-signal) | Closing | PBTH (signal-closing) | FCO (closing, opening) | DIF (closing-opening) | FOC (opening, closing) | GCO&OC (FCO-FOC) | AVG (average of closing and opening) | NWTH (opening-signal) | CMF (average of FCO and FOC) | ā |
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