Pavement Damage Crack Recognition

This paper proposes a crack recognition method based on high-resolution line array 12 cameras and adaptive lifting algorithm. By defining the crack rate, this algorithm calculates the 13 ratio of the crack area to the area of the entire collected image to characterize the damage extent of 14 the current section. The algorithm first uses image preprocessing to reduce the image noise, then 15 uses histogram equalization to enhance the feature of the crack region, divides the whole image 16 into multiple sub-blocks, and extracts region features in the sub-block. At the same time, this 17 algorithm defines related feature descriptors, and constructs weak classifiers according to each 18 feature descriptor, and converts the weak classifiers into strong classifiers by using an adaptive 19 lifting algorithm. Finally, this algorithm realizes the division of the crack regions. Experimental 20 results show that the proposed algorithm can meet the actual needs and is better than other 21 classical algorithms. 22