说明：  公路缺陷的类别包括路面结构性破损和功能性破损，而路面结构性破损是最常见的，可以细分为龟裂、块裂、网裂、纵裂和横裂。研究和设计一套公路缺陷检测技术，可高效、快速、准确的自动识别公路缺陷。
(The types of highway defects include pavement structural damage and functional damage, and pavement structural damage is the most common, which can be divided into cracks, block cracks, net cracks, longitudinal cracks and transverse cracks. Research and design a set of highway defect detection technology, can be efficient, fast, accurate automatic identification of highway defects.)