关键词: 车辙检测, 结构光, 数字图像处理, 标定

Abstract: This paper presents a new method for automatic road rut detection，which is based on structured light measurement and image processing methods.Firstly，the linear structured light is projected onto the road surface and the image is acquired by a CCD camera，and then the rut curve is obtained by image processing and analysis，and finally a rapid and effective calibration method based on broad is proposed to calculate rut depth.The results have high coherence comparing with that obtained by people，and have much higher precision and efficiency than other similar instrument.

Key words: rut detection, structured light, digital image processing, calibration