Abstract
In this study, image processing was applied to photographs of the road surface taken from a traveling vehicle using a simple and inexpensive photographing unit, and method for automatic detection of pavement crack was developed. In comparison of the automatic detection and visual detection, the concordance rate of the crack detection by both methods became more than 80%. Furthermore, we calculated crack progress level (small, middle, large) using the automatically detecting method and compared it with the result of road surface measuring vehicle. It was revealed that the concordance rate of the crack detection by the both methods became more than 90%.
