Pavement Crack Detection Algorithm Based on Gray Minimum Value
In order to improve the accuracy of pavement crack detection,improve the detection effi-ciency and reduce the detection cost,a pavement crack detection algorithm based on gray minimum value is proposed.The algorithm extracts crack features with different contrast according to the histogram of the minimum gray level of pavement cracks without any preprocessing and labeling training.According to the gray spatial distribution characteristics of cracks with different contrast,a multi-directional activation re-construction algorithm for cracks with different contrast is designed.According to the linear characteristics of cracks,a pseudo-crack removal algorithm is designed to remove pseudo-cracks while retaining the detailed information of cracks.Tests on public data sets show that the algorithm can detect different types of pavement cracks and has certain practical application value.