Landslide Deformation Monitoring by Three-Camera Imaging System

Rau, Jiann-Yeou; Jhan, Jyun Ping; Andaru, Ruli

doi:10.5194/isprs-archives-xlii-2-w13-559-2019

Cited by 4 publications

(1 citation statement)

References 11 publications

(12 reference statements)

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“…To date, many studies have focused on the severe damage caused by ground subsidence in urban or rural areas in order to reduce the negative impact of ground subsidence on the environment and infrastructures [7][8][9][10]. Similarly, the landslide research community has addressed the monitoring of ground displacement using a variety of ground and remote sensing techniques [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

An Application of Persistent Scatterer Interferometry (PSI) Technique for Infrastructure Monitoring

et al. 2021

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In the absence of systematic structural monitoring to support adequate maintenance standards, many existing infrastructures may reach unacceptable quality levels during their life cycle, resulting in significant damage and even potential failure. The metropolitan area of the Gulf of Salerno (Italy), served by a complex multimodal transport network connecting the port area to the roads and railways surrounding the urban area, represents an important industrial and commercial hub at the local and international scale. This particular scenario, developed in a complex morphological and geological context, has led to the interference and overlapping of the transport network (highway, railway, main and secondary roads) that run through the piedmont area north of the port. Given the relevance of the area, our research aims to highlight the capabilities of the persistent scatterer interferometry (PSI) technique, belonging to the group of differential interferometric synthetic aperture radar (SAR), to extract space–temporal series of displacements on ground points or artifacts with millimeter accuracy useful to understand ongoing deformation processes. By using archived data from the European Space Agency missions, i.e., ERS1/2 (European remote-sensing satellite) and ENVISAT (environmental satellite), and the most recent data from COSMO-SkyMed constellations, it was possible to collect a 28-year dataset that was used to spatially analyze displacement patterns at a site-specific scale to check the stability of viaducts and embankments, and on a larger scale to understand the activity of the surrounding slopes. Despite the different resolution and subsequently the ground density, the analysis of the different datasets showed a spatiotemporal consistency in the displacement patterns that concerned two subareas showing significant annual velocity trends, one northeast of the city and the second in the port area. The analysis presented in this paper highlights how a complex geologic area, combining slope movements and various fault systems, could be a major concern for the stability of the overlying infrastructure and also the role that a PSI analysis can play in remotely monitoring their behavior over long periods of time.

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Section: Introductionmentioning

confidence: 99%

An Application of Persistent Scatterer Interferometry (PSI) Technique for Infrastructure Monitoring

et al. 2021

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UAV-g 2019: Unmanned Aerial Vehicles in Geomatics

Nex¹

2019

Drones

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Unmanned aerial vehicle in geomatics (UAV-g) is a well-established scientific event dedicated to UAVs in geomatics and remote sensing. In the different editions of the journal, new scientific challenges have increased their synergy with adjacent domains, such as robotics and computer vision, thereby increasing the impact of this conference. The 2019 edition has been hosted by the University of Twente (The Netherlands) and has attracted about 300 participants for the full three-day program. Researchers from 36 different countries (from all continents) have presented 89 accepted papers in 17 oral and 2 poster sessions. The presented papers covered multi-disciplinary topics, such as photogrammetry, natural resources monitoring, autonomous navigation, and deep learning. All these contributions have in common the use of UAV platforms for the innovative acquisition and processing of the acquired data and information extracted from the surrounding environment.

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Robust In-Plane Structures Oscillation Monitoring by Terrestrial Photogrammetry

El-Kadi

El-Shazly

Nassar

2020

Sensors

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Oscillation monitoring commonly requires complex setups integrating various types of sensors associated with intensive computations to achieve an adequate rate of observations and accuracy. This research presents a simple, cost-effective approach that allows two-dimensional oscillation monitoring by terrestrial photogrammetry using non-metric cameras. Tedious camera calibration procedures are eliminated by using a grid target that allows geometric correction to be performed to the frame's region of interest at which oscillations are monitored. Region-based convolutional neural networks (Faster R-CNN) techniques are adopted to minimize the light exposure limitations, commonly constraining applications of terrestrial photogrammetry. The proposed monitoring procedure is tested at outdoor conditions to check its reliability and accuracy and examining the effect of using Faster R-CNN on monitoring results. The proposed artificial intelligence (AI) aided oscillation monitoring allowed sub-millimeter accuracy monitoring with observation rates up to 60 frames per second and gained the benefit of high optical zoom offered by market available bridge cameras to monitor oscillation of targets 100 m apart with high accuracy.

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Landslide Deformation Monitoring by Three-Camera Imaging System

Cited by 4 publications

References 11 publications

An Application of Persistent Scatterer Interferometry (PSI) Technique for Infrastructure Monitoring

An Application of Persistent Scatterer Interferometry (PSI) Technique for Infrastructure Monitoring

UAV-g 2019: Unmanned Aerial Vehicles in Geomatics

Robust In-Plane Structures Oscillation Monitoring by Terrestrial Photogrammetry

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