机载LiDAR数据提取堤防工程特征信息圆环探测法

doi:10.11947/j.AGCS.2020.20200194

测绘学报 ›› 2021, Vol. 50 ›› Issue (2): 203-214.doi: 10.11947/j.AGCS.2020.20200194

机载LiDAR数据提取堤防工程特征信息圆环探测法

沈定涛^1,3, 钱天陆², 夏煜^1,3, 陈蓓青^1,3, 张煜^1,3, 王结臣²

1. 长江水利委员会长江科学院流域水资源与生态环境科学湖北省重点实验室, 湖北武汉 430010;
2. 南京大学地理与海洋科学学院江苏省地理信息技术重点实验室, 自然资源部国土卫星遥感应用重点实验室, 江苏南京 210023;
3. 长江水利委员会长江科学院空间信息技术应用研究所, 湖北武汉 430010

收稿日期:2020-05-18 修回日期:2020-09-29 发布日期:2021-03-03
通讯作者: 王结臣 E-mail:wang_jiechen@nju.edu.cn
作者简介:沈定涛(1983-),男,博士,高级工程师,主要从事水信息学与数字流域、水文遥感与水资源方面的研究。E-mail:dingtaoshen@outlook.com
基金资助:
国家重点研发计划课题（2017YFC1502601）；国家自然科学基金项目（42077438；41501558）

A ring detection method for levee features extraction based on airborne LiDAR data

SHEN Dingtao^1,3, QIAN Tianlu², XIA Yu^1,3, CHEN Beiqing^1,3, ZHANG Yu^1,3, WANG Jiechen²

1. Hubei Provincial Key Laboratory of River Basin Water Resources and Eco-environmental Sciences, Changjiang River Scientific Research Institute, Wuhan 430010, China;
2. Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China;
3. Spatial Information Technology Application Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China

Received:2020-05-18 Revised:2020-09-29 Published:2021-03-03
Supported by:
The National Key Research and Development Program of China (No. 2017YFC1502601);The National Natural Science Foundation of China (Nos. 42077438;41501558)

摘要/Abstract

摘要： 获取堤防中心线、堤顶堤坡和断面等特征信息对于堤防破损检测和安全评估具有重要意义。LiDAR技术为堤防检测工作提供了便利，LiDAR生成的DTM是一种连续化的地表数据，用于堤防特征信息提取具有工作量小、数据精度高的极大优势。本文提出了一种使用机载LiDAR生成的DTM数据开展堤防特征信息提取方法，采用圆环探测实现堤防中心线生成，与常规方法相比可以很好地规避堤防因侵蚀、垮塌等原因造成中心线数据变形、截断等缺陷；在此基础上，基于堤防坡度分类标准，给出了堤防堤顶、堤坡形态数据生产的流程和方法；通过圆环交线数据生成等距离堤防断面线，并自动提取堤防剖面。最后，对洞庭湖区共双茶垸蓄滞洪区120 km的堤防开展实证研究，表明本文方法可以很好地用于堤防工程特征信息的精确提取，有着很好的应用潜力。

关键词: 机载LiDAR, 堤防工程, 特征信息, 堤防巡检, DTM

Abstract: Extracting levee features (e.g. central lines, levee crowns, levee slopes and sections) has great significance for detecting demaged levees and security assessment. Airborne LiDAR can be utilized to produce continuous surface data DTM.Thus, it has its advantage of lighter workload and higher precision when extracting levee features. In this paper, it is proposed a method to extract levee features with airborne LiDAR-derived DTM. Firstly, central line of levees is generated by ring detection. Compared to conventional methods, ring detection is tolerant to deformated or broken central lines caued by levee erosion or collapsion. Secondly, on this basis, levee crown and slope data is producted according to the standard of levee slope classification. Lastly, equidistant section lines of levees are extracted from ring intersections, and automatically generated the levee section. An empirical research of our method was conducted on 120 km of levees in Gongshuangcha detention basin in the Dongting Lake area, China.This method performed well in accurate extraction of levee engineering information, and has great application potential.

Key words: airborne LiDAR, levee, features, levee detection, DTM

中图分类号:

P208

沈定涛, 钱天陆, 夏煜, 陈蓓青, 张煜, 王结臣. 机载LiDAR数据提取堤防工程特征信息圆环探测法[J]. 测绘学报, 2021, 50(2): 203-214.

SHEN Dingtao, QIAN Tianlu, XIA Yu, CHEN Beiqing, ZHANG Yu, WANG Jiechen. A ring detection method for levee features extraction based on airborne LiDAR data[J]. Acta Geodaetica et Cartographica Sinica, 2021, 50(2): 203-214.

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机载LiDAR数据提取堤防工程特征信息圆环探测法

A ring detection method for levee features extraction based on airborne LiDAR data

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