Multi-Region Plane Fitting Algorithm for Texture Depth of Asphalt Pavements
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.
NETL
NSTL
万方数据
