Review
Engineering, Multidisciplinary
Nan Shen, Bin Wang, Hongyang Ma, Xin Zhao, Yang Zhou, Zhenxin Zhang, Jinghai Xu
Summary: This paper provides a comprehensive overview of the application of terrestrial laser scanning (TLS) in deformation monitoring. It covers measurement principles, stochastic models, registration, change detection, and practical applications. The paper classifies, details, and compares methods for change detection, registration, and georeferencing, and discusses the challenges and future research directions in deformation monitoring. The importance of measurement planning for data accuracy and decision-making is emphasized.
Article
Environmental Sciences
Dongfeng Jia, Weiping Zhang, Yanping Liu
Summary: This study presents a systematic method for analyzing tunnel deformation, including a rapid and high-accuracy point-cloud registration method using a positioning base made in the laboratory and an improved moving least-squares method for reconstructing the tunnel centerline from unorganized point clouds.
Review
Mining & Mineral Processing
Sarvesh Kumar Singh, Bikram Pratap Banerjee, Simit Raval
Summary: Despite challenges in the operational environment, laser scanning can provide timely assessments of mine sites. Laser scanning technology has advanced significantly in terms of mobility and mapping, but constraints exist due to feature deficiency, dynamics, and environmental influences. Laser scanning has matured for change detection and structure mapping applications, but improvements are needed in lithology identification and surface parameter measurements.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2023)
Article
Remote Sensing
Wen Zhong, Tingjun Zhang, Jie Chen, Jianguo Shang, Shufa Wang, Cuicui Mu, Chengyan Fan
Summary: This study used terrestrial laser scanning to investigate the development of thermokarst landforms in the northern Qinghai-Tibet Plateau and found significant ground deformation at the edges of thermokarst landforms during the thaw season. The results reveal that seasonal ground temperature change and extreme precipitation events are key factors in triggering severe deformation of thermokarst landforms.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2021)
Article
Environmental Sciences
Christoph Holst, Jannik Janssen, Berit Schmitz, Martin Blome, Malte Dercks, Anna Schoch-Baumann, Jan Bloethe, Lothar Schrott, Heiner Kuhlmann, Tomislav Medic
Summary: This article investigates the usage of TLS point clouds for monitoring solifluction processes, developing a workflow to capture soil mass displacement. Results showed that the method achieved similar accuracy to established approaches, but with higher spatial resolution.
Article
Environmental Sciences
Lidu Zhao, Xiaping Ma, Zhongfu Xiang, Shuangcheng Zhang, Chuan Hu, Yin Zhou, Guicheng Chen
Summary: The extraction of landslide deformation using terrestrial laser scanning has many important applications. This study proposes a method to extract landslide deformations from TLS data by eliminating edge drift and using weighted least squares regularization solution. Experimental results show that the proposed method outperforms existing methods in landslide deformation extraction.
Article
Engineering, Civil
Jingyu Li, Lei Wang, Jinzhong Huang
Summary: This study used terrestrial laser scanning to measure brick-concrete buildings susceptible to damage from mining activities. The wall length was used as a deformation monitoring index. The study extracted point cloud data of individual walls and estimated their boundary points. Top boundary lines were fitted based on these points, and regions of interest were constructed for calculating the wall length. The proposed method accurately estimated deformations with a millimeter-level accuracy and absolute errors ranging from -6 to 6 mm.
JOURNAL OF CIVIL STRUCTURAL HEALTH MONITORING
(2023)
Article
Construction & Building Technology
Sangwook Park, Jong Won Ma
Summary: This study presents a model for structural monitoring of building structures using Terrestrial Laser Scanning (TLS). The model includes data collection, processing, and structural assessment phases, and utilizes voxel-based data processing approach with polynomial regression to estimate structural responses. The results show that the model has reasonable accuracy, particularly at higher drift levels.
JOURNAL OF BUILDING ENGINEERING
(2023)
Review
Construction & Building Technology
Afrooz Aryan, Frederic Bosche, Pingbo Tang
Summary: Terrestrial Laser Scanning (TLS) is an efficient method for collecting point clouds with various applications in the AEC domain. Ensuring data quality and time efficiency in data collection is crucial, which can be achieved through prior planning optimization process known as Planning for Scanning (P4S). Past research has focused on categorizing point cloud data quality criteria and addressing the optimization problem in P4S by considering inputs, constraints, and algorithms utilized.
AUTOMATION IN CONSTRUCTION
(2021)
Article
Construction & Building Technology
Wanli Liu, Zhixiong Li, Shuaishuai Sun, Haiping Du, Miguel Angel Sotelo
Summary: A new method based on KSC-CMKF and LM-WNN algorithms is proposed to correct TLS georeferencing error in kinematic operating mode. This method significantly improves the accuracy of 3D scene reconstruction and outperforms two existing popular methods. Multiple kinematic models and algorithms are used to optimize kinematic parameters and correct coordinate transformation errors, leading to enhanced performance of TLS kinematic georeferencing.
AUTOMATION IN CONSTRUCTION
(2021)
Article
Engineering, Multidisciplinary
Michalina Wojtkowska, Michal Kedzierski, Paulina Delis
Summary: This study discusses the use of artificial neural networks and point clouds to calculate displacements of cultural heritage structures. The model trained on a laboratory dataset was able to determine displacements of the building facade with a relative accuracy of 3% and a success rate of 85%. Deformations derived from digital surface models generated from point clouds had a relative accuracy of 7%, while values determined by image-based close-range photogrammetry methods were 35%. An innovative aspect is the use of neural networks to determine deformations based on sub-models generated from the point cloud, along with a supervised-trained high accuracy predictive model. The practical significance lies in creating an end-to-end solution that can automatically detect and estimate the value of deformation, providing a major advantage over other methods.
Article
Geography, Physical
Junling Jin, Jeffrey Verbeurgt, Lars De Sloover, Cornelis Stal, Greet Deruyter, Anne-Lise Montreuil, Sander Vos, Philippe De Maeyer, Alain De Wulf
Summary: In this study, a new remote sensing method using a long-range static terrestrial laser scanner (TLS) was investigated for monitoring the spatio-temporal variation in surface moisture on a sandy beach. A new intensity correction method was proposed to model the relation between beach surface moisture and corrected intensity. The results showed that the long-range static TLS is an extremely suitable technique for monitoring surface moisture dynamics over a substantial beach section at a high scanning frequency.
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
(2021)
Article
Geography, Physical
Dimitrios Bolkas, Gabriel Walton, Ryan Kromer, Timothy Sichler
Summary: This study presents an automated registration algorithm based on edge detection for multi-platform and multi-epoch point clouds, which offers high accuracy and reliability for geotechnical monitoring programs.
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
(2021)
Article
Geochemistry & Geophysics
Wendian Zhang, Zhiping Chen, Ronggang Huang, Zhen Dong, Liming Jiang, Yuanping Xia, Benfu Chen, Hansheng Wang
Summary: Multiobjective optimization-based TLS layout planning can improve the reliability and point accuracy of landslide monitoring.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2023)
Article
Environmental Sciences
Kenneth Olofsson, Johan Holmgren
Summary: A new algorithm for detecting branch attachments on stems based on a voxel approach and line object detection by a voting procedure is introduced. This algorithm can be used to evaluate the quality of stems by giving the branch density of each standing tree. The detected branches were evaluated using field-sampled trees. The algorithm detected 63% of the total amount of branch whorls and 90% of the branch whorls attached in the height interval from 0 to 10 m above ground. The suggested method could be used to create maps of forest stand stem quality data.
Article
Engineering, Civil
William Soo Lon Wah, John S. Owen, Yung-Tsang Chen, Ahmed Elamin, Gethin Wyn Roberts
ENGINEERING STRUCTURES
(2019)
Article
Environmental Sciences
Dongsheng Zhao, Craig M. Hancock, Gethin Wyn Roberts, Shuanggen Jin
Article
Chemistry, Analytical
Chendong Li, Craig M. Hancock, Nicholas A. S. Hamm, Sreeja V. Veettil, Chong You
Article
Construction & Building Technology
Hussein Alwan Msaewe, Panos A. Psimoulis, Craig M. Hancock, Gethin Wyn Roberts, Lukasz Bonenberg
Summary: The use of GPS in bridge monitoring aims to accurately determine the response characteristics of the bridge, but noise contamination can affect the accuracy and performance of the solution. This study investigates the potential contribution of other GNSS constellations for robust and reliable displacement time series solution, and proposes a novel method to improve GNSS monitoring performance.
STRUCTURAL CONTROL & HEALTH MONITORING
(2021)
Article
Environmental Sciences
Xu Tang, Shuanggen Jin, Gethin Wyn Roberts
Summary: The study found that initializing the Kalman filter with prior constraints can improve the positioning performance of PPP, successfully dealing with GPS data logging gaps for instantaneous convergence.
Article
Multidisciplinary Sciences
Jian Wang, Xu Liu, Wen Li, Fei Liu, Craig Hancock
Summary: The paper introduces a method combining HHT and VMD for extracting multidimensional dynamic response characteristics of offshore oil platforms. By extracting time-frequency-energy information, displacement calculation and torsion angle measurement are achieved. Experimental results show the effectiveness of the method in both simulated tests and field trials.
Article
Engineering, Aerospace
Dongsheng Zhao, Wang Li, Chendong Li, Craig M. Hancock, Gethin Wyn Roberts, Qianxin Wang
Summary: ROTI, as a scintillation index with potential for global geodetic receivers, shows generally consistent performance in validating scintillation occurrences in middle-high-latitude regions. However, it cannot achieve accurate scintillation monitoring at the epoch level across different selected stations.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Astronomy & Astrophysics
Dongsheng Zhao, Wang Li, Chendong Li, Xu Tang, Qianxin Wang, Craig M. Hancock, Gethin Wyn Roberts, Kefei Zhang
Summary: This paper proposes a new method to extract the phase scintillation index from each GNSS carrier with 1s-sampling-interval, aiming to achieve global-scale ionospheric scintillation monitoring.
SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS
(2022)
Article
Environmental Sciences
Dongsheng Zhao, Qianxin Wang, Wang Li, Shuangshuang Shi, Yiming Quan, Craig M. Hancock, Gethin Wyn Roberts, Kefei Zhang, Yu Chen, Xin Liu, Zemin Hao, Shuanglei Cui, Xueli Zhang, Xing Wang
Summary: This paper evaluates the accuracy of two 30s-sampling-interval indices in monitoring scintillations in the high-latitude region. By analyzing factors from both time and space aspects, the study reveals the effectiveness of the 30s-sampling-interval scintillation indices in monitoring and detecting the occurrence patterns in the high-latitude region.
Correction
Remote Sensing
Gethin Wyn Roberts, CraigMatthew Hancock, Werner Lienhart, Ferdinand Klug, Niko Zuzek, Huib de Ligt
Summary: There was a mistake in the original version of the article.
Article
Remote Sensing
Gethin Wyn Roberts, Craig Matthew Hancock, Werner Lienhart, Ferdinand Klug, Niko Zuzek, Huib de Ligt
Summary: This paper explores the use of GPS, FBG, and carrier phase measurements for dynamic displacement measurements of large structures, focusing on high-frequency dynamic displacement measurements of ships and indoor environments. Field trials on a passenger and vehicle ferry demonstrated the effectiveness of these measurements in monitoring long-term displacement characteristics and changes, providing insight into the ship's health status.
Review
Remote Sensing
Gethin Wyn Roberts
Article
Engineering, Multidisciplinary
Francis X. Ochieng, Haoyang Jiang, Craig M. Hancock, Gethin W. Roberts, Julien Le Kernec, Xu Tang, Huib de Ligt
JOURNAL OF ENGINEERING-JOE
(2019)
Article
Remote Sensing
Gethin Wyn Roberts, Xu Tang, Christopher J. Brown
Article
Acoustics
Dennis Hartono, Dunant Halim, Gethin W. Roberts
JOURNAL OF LOW FREQUENCY NOISE VIBRATION AND ACTIVE CONTROL
(2019)
