铁道标准设计2017，Vol.61Issue(4)：14-18,5.DOI:10.13238/j.issn.1004-2954.2017.04.004
铁路线路点云数据可视化重构方法研究
Research on Rail Track Point Cloud Data Visualization Design Reconstruction Method
摘要
Abstract
According to the large point cloud data obtained from the terrain laser scanner, this paper focuses on the professional processing and utilization of the railway line point cloud.In the light of the technical characteristics of railway lines, the research on the pretreatment of line point cloud mainly includes the registration of line point clouds, the geometrical-characteristics-based segmentation of point cloud data of the line with CCD image, the noise smoothing and data encapsulation.The reconstruction method of line point cloud is proposed and the geometric property estimation based on discrete data point curvature is employed to preliminary predict the information of the main line and slope changing points, and then within the range of different main points, characteristic section is constructed to obtain line data and surface data.Reconstruction line point cloud data is in line with the positive design practice and the data so obtained related to the rail running surface can be used to determine the geometric shape of the line.关键词
线路设计/点云/设计特征/特征截面Key words
Rail track design/Point cloud/Design characteristic/Characteristic section分类
交通工程引用本文复制引用
段晓峰,韩峰,李良英,魏朋..铁路线路点云数据可视化重构方法研究[J].铁道标准设计,2017,61(4):14-18,5.基金项目
国家自然科学基金(51568037) （51568037）
兰州交通大学青年科学基金(2013029) （2013029）
