沥青路面构造深度分区域平面拟合算法
Multi-Region Plane Fitting Algorithm for Texture Depth of Asphalt Pavements
朱峰 1冯兴乐 2伍川 3林小勇3
作者信息
- 1. 中铁十局集团第一工程有限公司,山东 济南 250000
- 2. 长安大学 信息工程学院,陕西 西安 710064
- 3. 中铁城市发展投资集团有限公司,四川 成都 610000
- 折叠
摘要
针对现有沥青路面构造深度计算方法易受外界和人为因素影响的问题,该文提出基于线激光三维数据的构造深度分区域平面拟合算法.该算法对采集的路面三维高度数据矩阵进行预处理,并提出一种基于斜率的点云数据自适应滤波算法.然后进行分块、确定中心点的局部极值,最后以三点一面的平面拟合算法为核心,计算沥青路面的构造深度.试验结果表明:该算法与电动铺砂法的相关性超过94%,计算复杂度为立体拟合法的1/3,并实现了采集样本由点到面的跨越.
Abstract
The existing calculation methods for texture depth of asphalt pavements are easily affected by external and human factors.Therefore,a multi-region plane fitting algorithm for the texture depth based on three-dimensional(3D)linear laser data was proposed.The algorithm preprocessed the collected 3D height data matrix of the pavement and derived a slope-based adaptive filtering algorithm for point cloud data.Then,the 3D height matrix was divided into multiple regions,and the local extremum of the center point was determined.Finally,with the three-point and one-surface plane fitting algorithm as the core,the texture depth of asphalt pavements was calculated.The experimental results show that the correlation between this algorithm and the electric sanding method exceeds 94%,and the complexity is 1/3 of the 3D fitting algorithm.The sample acquisition from point to surface is realized.
关键词
道路工程/沥青路面/构造深度/平面拟合/三维数据/线激光Key words
road engineering/asphalt pavement/texture depth/plane fitting/3D data/linear laser引用本文复制引用
基金项目
陕西省地方标准项目(SDBXM67-2020)
出版年
2024
国家科技期刊平台
NSTL
万方数据