基于双相机立体摄影测量的路面裂缝识别方法  

Identification of Pavement Crack Based on Dual Camera Stereo Photogrammetry

作　　者：宋宏勋[1,2] 马建[1,2] 王建锋[1,2] 崔国丽[1] 

机构地区：[1]长安大学陕西省道路交通智能检测与装备工程技术研究中心,陕西西安710064 [2]长安大学汽车学院,陕西西安710064

出　　处：《中国公路学报》2015年第10期18-25,40,共9页China Journal of Highway and Transport

基　　金：陕西省重大科技创新项目(2007ZKC(一)02-01);陕西省自然科学基础研究计划项目(2012JQ7030);中央高校基本科研业务费专项资金项目(2013G3224018;2013G1502071)

摘　　要：为了实现对路面损坏裂缝的快速检测,提出了一种基于双相机立体摄像测量的路面损坏裂缝快速识别方法。运用2台面阵相机,1台垂直拍摄,1台倾斜拍摄,对路面同一物点建立2台相机之间的映射关系。利用映射关系,计算出倾斜拍摄图像变换后的图像,将变换后的图像与垂直拍摄的图像进行运算,实现路面裂缝的快速分割识别。结果表明:将倾斜拍摄的路面图像按映射关系变换后获得的新图像与垂直拍摄的路面裂缝图像做相乘运算,可以突出路面的裂缝信息,弱化路面背景信息,实现路面裂缝图像的快速识别;所提出的裂缝识别算法识别效果优于其他几种算法。In order to realize the rapid detection of pavement cracks,a fast identification method for pavement crack was proposed based on the stereo photogrammetry by using two cameras,one vertical shooting camera and the other tilt shooting camera.The mapping relationship between the two cameras＇images of the same object point was established.The new image was obtained by the mapping transformation of pavement image of tilt shooting camera.The segmentation and recognition of the pavement cracks was achieved through the calculation of the transformed image and the vertical image.The results show that the new transformed image obtained by tilt shooting according to mapping relationship is made multiplication operation with the vertical image.The calculated image can highlight the information of pavement cracks and weaken the road background,which can rapidly identify pavement crack image.The proposed method has a higher recognition efficiency than the other given methods.

关 键 词：道路工程 路面 立体摄影测量 裂缝检测 图像处理 相机 

分 类 号：U418.6[交通运输工程—道路与铁道工程]