动态傅里叶变换轮廓术实现路面形变快速检测  

High-speed measurement and identification of highway pavement surface deformation

作　　者：付林[1] 贺安之[1] 李振华[1] 杨庆[1] 

机构地区：[1]南京理工大学理学院,江苏南京210094

出　　处：《光电工程》2006年第7期115-118,共4页Opto-Electronic Engineering

摘　　要：公路表面的三维结构对于判断公路路面破损状况具有重要的意义。基于光栅投影的傅里叶变换轮廓术将物体的高度信息编码在投影到待测物面上的正弦条纹的形变信息中,可以实现对物体的垂直测量。探讨了傅里叶变换轮廓术在高速公路路面面形测量-动态实时系统中的应用,提出了利用自适应标准模版匹配,基于特征图像识别的方法,分选破损的公路路面,从而实现对高速公路路面形变的快速实时检测。The measurement of three dimensions structure of pavement surface is of great value for the judgment of pavement distress status. Grating projection based on Fourier transform profilometry encodes object height information into deformations of sine fringes projected on the object. This profilometry can measure objects in orthogonal direction. In this paper, the application of the Fourier transform profilometry was discussed in a dynamic real-time measurement system of highway pavement surface profile. By the introduction of a specific reference plane, an adapting template matching method based on image characteristic identification was developed for Fourier transform profilometry. Distressed pavement surfaces can be identified by the method. It realizes real-time measurement and high-soeed identification of highway pavement surface deformation.

关 键 词：傅里叶变换 轮廓术 面形测量 公路 

分 类 号：O438.2[机械工程—光学工程]