Synergistic use of UAV and TLS data for precise rockfall monitoring over a hanging monastery

Kyriou, Aggeliki; Nikolakopoulos, Konstantinos; Koukouvelas, Ioannis

doi:10.1117/12.2636150

Cited by 6 publications

(4 citation statements)

References 41 publications

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“…The fusion of UAV and TLS data, in the conventional sense, refers to the combination of the two datasets through methods such as ICP algorithm registration, aiming to complement each other or improve the accuracy of data in certain areas [57,58]. This data fusion method is more suitable for small-scale UAV modeling and TLS data because both exhibit a relatively high accuracy, enabling them to be combined quite well.…”

Section: Data Refinement Based On Uav Photogrammetry and Tlsmentioning

confidence: 99%

A High-Precision Modeling and Error Analysis Method for Mountainous and Canyon Areas Based on TLS and UAV Photogrammetry

Luo,

Jiang,

et al. 2024

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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Obtaining comprehensive and accurate terrain data is important for engineering construction. Unmanned aerial vehicle (UAV) photogrammetry and terrestrial laser scanning (TLS) are two widely used terrain modeling techniques. In mountainous areas, both techniques suffer limitations. These limitations occur in uninhabited areas, primarily caused by the steep terrain and inconvenient transportation conditions, resulting in poor data integrity and inadequate accuracy in UAV and TLS terrain mapping. In this article, we proposed a fusion modeling method based on UAV photogrammetry and TLS for high-precision terrain mapping in mountainous and canyon areas. The proposed method entails the use of TLS data to provide additional control points for UAV modeling, resulting in an improved accuracy of the modeling results. In addition, to quantify the optimization effect of this method, we proposed a 3D model deviation comparison method based on the iterative closest point (ICP) algorithm. This method can be employed to accurately depict the differences in distance and rotation angle between multiple terrain models. We applied this method to the Yebatan hydropower station in Southwest China, which increased the accuracy of the terrain data by 26% and expanded the effective range by over 100%.

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Section: Data Refinement Based On Uav Photogrammetry and Tlsmentioning

confidence: 99%

A High-Precision Modeling and Error Analysis Method for Mountainous and Canyon Areas Based on TLS and UAV Photogrammetry

Luo,

Jiang,

et al. 2024

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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“…The selected methods for assessing translational slide and fall threats to heritage sites were similar, mainly the geomorphological approach and survey and monitoring using geomatic techniques (Figure 7). Examples of selected methods are detailed geomorphological mapping, extensive field campaigns, UAV digital photogrammetry, and TLS surveys to investigate the landslide mechanisms and potential damage to heritage sites [64,[87][88][89][90][91][92][93]. A minority of case studies opted for index-based methods.…”

Section: Case Studies Geographical Distribution Climatic Context and ...mentioning

confidence: 99%

Landslides and Cultural Heritage—A Review

Bonini,

Vieira,

Corrêa

et al. 2023

Heritage

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Cultural heritage sites can be affected by landslides, often causing damage to their integrity, value, and accessibility. Several studies worldwide were focused on the assessment of the potential threats that landslides can pose to the preservation of cultural heritage sites. This article aims to review landslide studies at cultural heritage sites worldwide, analyzing the publications’ temporal distribution, selected methods, geographical and climate contexts, and investigated landslide types. We analyzed a database of 331 publications from 2000 to 2023 in study areas distributed across 47 countries, compiled through systematic queries of the Web of Science and Scopus catalogs. The results show an increase in the number of publications from 2012 onwards, with most studies performing landslide susceptibility analyses on cultural heritage sites. The majority of the studies deployed a geomorphological approach address slope instability mechanisms that threaten site integrity, with a significant number of publications presenting model-based, multidisciplinary and engineering geological approaches. Europe, North America, and Asia and the Pacific concentrate the majority of studies, with Italy and China having the highest number of case studies. The threats to cultural heritage sites located in Latin America and the Caribbean, and Africa are the least studied. Block slides, earth slides, and rock falls are the most studied processes, with fewer studies dealing with other landslide types.

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“…UAVs overlapping photos combined into mosaics using photogrammetric systems finally produce high-resolution orthophotos that can estimate the landscape evolution in an area 1 . These models provide evidences for landslide mapping, volumetric and morphometric calculations, or three-dimensional representations of the terrain sites 4 . The last years the extremely rapid development of the UAVs provide to the researchers a low cost / extremely flexible tool for the rapid assessment after natural hazards like storms, landslides, or earthquakes 5,6,7 .…”

Section: Introductionmentioning

confidence: 99%

UAV photogrammetry and in situ measurements for mass wasting monitoring in a steep cliff

Koukouvelas,

Pappas,

Kyriou

et al. 2023

Earth Resources and Environmental Remote Sensing/Gis Applications XIV

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Sediment shortage during beach mass wasting over the period of climate change is a societal challenge since the sea level rises. In complex geophysical coastal systems like the Lefkada west coast, our ability to address temporal and spatial changing is beyond the detection of impacts. The question is crucial in areas where shorelines may retreat due to the geomorphology, sea level rise and seismic activity. In 2003 and 2015, two strong earthquakes affected Lefkada Island, leading to extensive translational debris slides across the island's west coast increasing mass wasting of the overhanging cliff. Key elements in this area are the Cephalonia Fault Zone, the seismicity, climatic loading, and forestation or deforestation. We monitor this coast with photogrammetry based on traditional historic air photos, UAV flight campaigns, GIS based model like the RUSLE, and field verification of mass wasting with the installation of a sediment trap on the upper sector of the Egremni cliff. The high-resolution images acquired by the UAV were used for the creation of orthophoto maps and Digital Surface Models (DSMs) of the cliff during different periods. Based on the remote sensing data and in field data analyses we concluded that among the processes increasing the sediment feeder is the massive co-seismic sliding during strong earthquakes above magnitude six, and the increase of mass wasting above magnitude four during interseismic periods. These threshold intensities affect sediment shortage across the coast of the island.

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Synergistic use of UAV and TLS data for precise rockfall monitoring over a hanging monastery

Cited by 6 publications

References 41 publications

A High-Precision Modeling and Error Analysis Method for Mountainous and Canyon Areas Based on TLS and UAV Photogrammetry

A High-Precision Modeling and Error Analysis Method for Mountainous and Canyon Areas Based on TLS and UAV Photogrammetry

Landslides and Cultural Heritage—A Review

UAV photogrammetry and in situ measurements for mass wasting monitoring in a steep cliff

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