Abstract: Digital image technology is applied to deal with the exposed-cement concrete pavement photos taken by ordinary digital cameras.According to the analysis of the image gray scale change,the texture depth of road surface is got;and through the comparison with the conventional method,it indicates that this method of the road texture surface measuring the depth features in its reliability and simple operation.It can be used in analyzing the characteristics of the exposed-aggregate concrete pavement.

Key words: digital image technology, exposed-aggregate pavement, texture depth of road surface

摘要： 应用数字图像技术,将普通数码相机拍摄的露石水泥混凝土路面照片进行处理,根据图像的灰度值变化分析得到露石混凝土路表面的构造深度,并通过与常规方法的比较表明,此方法测量的路表面构造深度结果可靠,操作简单,可以在分析露石混凝土路面粗糙的表面特征上应用。

关键词: 数字图像技术, 露石混凝土路面, 路表构造