设计了一套基于双目的路面裂纹最大宽度检测系统，提出了一种基于骨架的边缘腐蚀算法，适用于各类裂纹最大像素宽度的计算。采用双目摄像头进行图像采集，将获取的最大宽度像素坐标转换为世界坐标，从而计算出裂纹的实际最大宽度。相较于传统方法，该算法的检测精度提高了4.93%，检测速度提升了3.2倍，极大地提高了整个裂纹检测系统的效率。

A road crack maximum width detection system used binocular visual is designed. A skeleton-based edge corrosion algorithm is proposed, which can be applied to the calculation of the maximum pixel width of various types of cracks. The image acquisition is carried out by the two-eye camera, and the maximum width pixel coordinates obtained are converted to world coordinates, so as to calculate the actual maximum width of the crack. Compared with the traditional method, the detection accuracy of the algorithm is improved by 4.93%,and the speed is increased by nearly 3.2 times. So that the efficiency of the whole crack detection system is greatly improved.