一种由粗到精的边坡形变检测方法

doi:10.13474/j.cnki.11-2246.2021.0183

测绘通报 ›› 2021, Vol. 0 ›› Issue (6): 93-97.doi: 10.13474/j.cnki.11-2246.2021.0183

一种由粗到精的边坡形变检测方法

荣延祥¹, 龚正², 陈泽权³, 杨必胜³

1. 深圳地质建设工程公司, 广东深圳 518023;
2. 深圳地质局, 广东深圳 518023;
3. 武汉大学测绘遥感信息工程国家重点实验室, 湖北武汉 430079

收稿日期:2021-03-03 发布日期:2021-06-28
作者简介:荣延祥(1966—),男,教授级高级工程师,主要从事城市工程测量的相关技术研究及生产。E-mail:820292249@qq.com
基金资助:
深圳地质建设工程公司应急抢险检测项目（SZJ-KY-202005）

A coarse-to-fine method for slope deformation detection

RONG Yanxiang¹, GONG Zheng², CHEN Zequan³, YANG Bisheng³

1. Shenzhen Geology & Construction Company, Shenzhen 518023, China;
2. Shenzhen Geology Bureau, Shenzhen 518023, China;
3. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China

Received:2021-03-03 Published:2021-06-28

摘要/Abstract

摘要： 现代化工程建设的过程会形成很多边坡，而这些边坡一旦遭到意外破坏，会对人民的生命财产安全造成巨大威胁。因此，对边坡进行持续的形变检测至关重要。地面激光扫描技术（TLS）是一种现代化的边坡检测手段。基于此，本文提出了一种由粗到精的边坡形变检测方法。对于经过良好配准的两期边坡点云，该方法首先计算两期点云的最近匹配点距离，并进行粗检测。在精检测阶段，首先估计出形变的大致方向；然后依据该方向向量搜寻快速点特征直方图（FPFH）最相似的点作为对应点；最后计算点到对应点所在平面的距离值作为形变量。试验表明，本文方法可以有效计算出边坡实际的形变量，具有实用价值。

关键词: 边坡, TLS点云, 形变检测, FPFH, 由粗到精

Abstract: Many slopes will be formed during modern engineering construction, and once these slopes are accidentally damaged, they will pose a great threat to public live and property. Therefore, continuous deformation detection of theslope is very important. TLS is a modern slope detection method. Based on TLS, this paper proposes a coarse-to-fine method for slope deformation detection. For the two-stage slope point clouds after good registration, the distance between the nearest matching points of the two-stage point clouds is calculated, and then rough detection is carried out. During the precise detection, the general direction of deformation is estimated firstly, and then the point withthe largest FPFH is searched as the corresponding point according to the direction vector. Finally, the distance from the point to the plane where the corresponding point is located is calculated as the deformation. Experiments show that the proposed method can effectively calculate the actual deformation of the slope, and it is practical.

Key words: slope, TLS point cloud, deformation detection, FPFH, coarse-to-fine

中图分类号:

P237

荣延祥, 龚正, 陈泽权, 杨必胜. 一种由粗到精的边坡形变检测方法[J]. 测绘通报, 2021, 0(6): 93-97.

RONG Yanxiang, GONG Zheng, CHEN Zequan, YANG Bisheng. A coarse-to-fine method for slope deformation detection[J]. Bulletin of Surveying and Mapping, 2021, 0(6): 93-97.

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一种由粗到精的边坡形变检测方法

A coarse-to-fine method for slope deformation detection

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