利用TLS技术与伪单点监测模式进行滑坡变形测量

doi:10.13474/j.cnki.11-2246.2021.0186

测绘通报 ›› 2021, Vol. 0 ›› Issue (6): 106-111.doi: 10.13474/j.cnki.11-2246.2021.0186

利用TLS技术与伪单点监测模式进行滑坡变形测量

郭献涛¹, 黄腾², 贾燕¹, 张荣春¹

1. 南京邮电大学地理与生物信息学院, 江苏南京 210023;
2. 河海大学地球科学与工程学院, 江苏南京 211106

收稿日期:2021-01-15 修回日期:2021-04-19 发布日期:2021-06-28
通讯作者: 贾燕。E-mail:1683430858@qq.com
作者简介:郭献涛(1984—),男,博士,讲师,主要从事地面三维激光扫描技术与精密工程测量研究。E-mail:xiantaoguo@njupt.edu.cn
基金资助:
南京邮电大学引进人才科研启动基金（NY218139）；南京邮电大学国自基金孵化项目（NY218083）；江苏省自然科学基金（BK20180765）；国家自然科学基金（41901401）

Landslide deformation monitoring using TLS technology and pseudo-single point monitoring model

GUO Xiantao¹, HUANG Teng², JIA Yan¹, ZHANG Rongchun¹

1. School of Geographic and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
2. School of Earth Sciences and Engineering, Hohai University, Nanjing 211106, China

Received:2021-01-15 Revised:2021-04-19 Published:2021-06-28

摘要/Abstract

摘要： 针对传统离散点监测模式不适用于TLS变形监测，以及现有基于TLS技术变形监测的一维性与仅适用于特定几何对象分析等不足，本文提出了一种基于TLS技术的伪单点变形监测模式，并基于该监测模式提出了一种以表面匹配技术为核心的变形计算新方法。通过构建广义高斯-马尔可夫模型匹配搜索估计伪单点对象的全三维变形参数，利用TLS多期点云的高密度性，实现了高精度提取全三维变形信息，尤其适用于滑坡等灾害监测领域。试验表明在扫描距离约240 m时，该方法可达到1 cm级的变形提取精度，对推动变形监测从点测绘向形测绘的转变具有一定的价值。

关键词: 地面激光扫描, 变形监测, 滑坡, 伪单点, 匹配估计

Abstract: To overcome the limitations of traditional sparse points monitoring model unsuitable for TLS deformation measurement, and the deficiencies of the existing methods using TLS technology such as the one-dimensional characteristics and only available to the deformation analysis of regular geometry objects. This paper proposes a pseudo-single point monitoring model and a deformation computing approach based on TLS measurement, through constructing the generalized Gauss-Markov model to match and estimate the 3D deformation parameters of the selected pseudo-single point objects, full 3D deformation information can be get with high precision utilizing the high density of multi-period TLS data. It is especially suitable for the landslide field and other disaster monitoring. Finally, experimental results show that this method can achieve 1 cm deformation extraction accuracy when the scanning distance is about 240 m, which is of certain value in promoting the transformation of deformation monitoring from point mapping to shape mapping.

Key words: terrestrial laser scanning, deformation monitoring, landslide, pseudo-single point, matching estimation

中图分类号:

P258

郭献涛, 黄腾, 贾燕, 张荣春. 利用TLS技术与伪单点监测模式进行滑坡变形测量[J]. 测绘通报, 2021, 0(6): 106-111.

GUO Xiantao, HUANG Teng, JIA Yan, ZHANG Rongchun. Landslide deformation monitoring using TLS technology and pseudo-single point monitoring model[J]. Bulletin of Surveying and Mapping, 2021, 0(6): 106-111.

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利用TLS技术与伪单点监测模式进行滑坡变形测量

Landslide deformation monitoring using TLS technology and pseudo-single point monitoring model

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