Cement Concrete Pavement Faulting Detection and Recognization Based on Binocular Vision

Abstract:

A new measurement method for faulting detection is proposed to overcome the shortcomings of traditional measurement methods for faulting detection on the cement concrete pavement.This method is realized by slab joints positioning based on the digital image processing and faulting calculating based on binocular vision,according to double camera’s imaging characters and the cement concrete pavement’s imaging feature.Slab joints positioning can be divided into approximate location based on the gray projection feature of whole image and accurate location based on the character of gray projection and edge projection around the slab joints image.The 3D coordinates of the points around the slab faulting which is used to calculate the faulting are obtained by the binocular vision measurement system.For the key step of this system,image matching adopts a new algorithm based on the estimated location of matching points.The experimental results show that measurement accuracy meets to the test results by ruler.