Tóm tắt:

This study puts forward an innovative approach for not only detecting cracks but also recognizing their severity. Herein, the severity of a crack object is characterized by its width. Light Gradient Boosting Machine (LightGBM) has been employed to categorize pavement surface into five labels: non-crack, sealed crack, minor crack, moderate crack, and severe crack. The model construction of the LightGBM requires a set of feature extractors, including steerable filters, projection integrals, and image texture analyses.