Article
Engineering, Multidisciplinary
E. Aldao, H. Gonzalez-Jorge, J. A. Perez
Summary: The feasibility of using low-cost portable 3D scanning systems for aircraft maintenance inspection tasks was evaluated in this article, comparing different technologies and determining that the Kinect LIDAR sensor shows the most promising results.
Article
Environmental Sciences
Guglielmo Grechi, Matteo Fiorucci, Gian Marco Marmoni, Salvatore Martino
Summary: This study proposed a method to generate rock mass point clouds combining optical and infrared thermal imaging data for describing temperature distributions and multitemporal surface temperatures. Despite the low resolution of the IR sensor, the 3D thermal point clouds showed high geometric accuracy, making them suitable for monitoring the thermal behavior of jointed rock masses.
Article
Engineering, Multidisciplinary
Karol Brzezinski, Pawel Ciezkowski, Arkadiusz Kwasniewski, Rafal Michalczyk, Sebastian Bak, Kazimierz Jozefiak
Summary: This paper presents a new method of global compaction monitoring based on the Structure from Motion (SfM) approach. The approach allows for monitoring soil surface settlement with excellent resolution and accuracy. The relationship between settlement and changes in layer density and stiffness was studied, showing a similar trend with the change of settlement and dynamic modulus during compaction. The proposed approach is valuable for researchers studying the compaction process, but further development is needed for implementation in industrial projects, especially in improving standardization and automation.
Article
Agronomy
Lucas Santos Santana, Gabriel Araujo e Silva Ferraz, Joao Paulo Barreto Cunha, Mozarte Santos Santana, Rafael de Oliveira Faria, Diego Bedin Marin, Giuseppe Rossi, Leonardo Conti, Marco Vieri, Daniele Sarri
Summary: This study evaluates the quality of semi-mechanized coffee planting on different land slopes using a remotely piloted aircraft and statistical process control, highlighting unexpected variations in plant spacing between planting rows and within rows, especially on steep slopes. Discussions on possible causes and management strategies contribute to improving the culture installation stage.
Article
Optics
Ashraf A. A. Beshr, Hossam El-Din Fawzy, Ehab A. A. Eldin, Jong Wan Hu, Fathi A. Abdelmgeed
Summary: This paper introduces the application of digital measuring techniques, specifically Digital Close Range Photogrammetry (DCRP), in the detection of deformation in post-tensioned structural elements (PTSEs). The use of digital equipment and a terrestrial laser scanner (TLS) allows for highly accurate monitoring of PTSE camber, with deviations not exceeding 0.01 mm.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Mechanics
Hao Yang, Xiangyang Xu
Summary: This paper discusses monitoring tunnel structures through visual perception technology, introduces an algorithm for deformation monitoring with laser-based technology to enhance the reliability of structural health monitoring, and uses photogrammetry technology to clearly identify the dimensions of diseases.
COMPOSITE STRUCTURES
(2021)
Article
Environmental Sciences
Yafei Zhang, Xugang Lian, Linlin Ge, Xiaoyu Liu, Zheyuan Du, Wenfu Yang, Yanru Wu, Haifeng Hu, Yinfei Cai
Summary: Surface subsidence caused by coal mining is a significant factor affecting the sustainable development of mining districts. This study proposes combining DInSAR and UAV photogrammetry to achieve high-precision monitoring of mining subsidence areas, which proves to be more accurate than using either technology alone.
Article
Engineering, Environmental
Caio Cesar de Sousa Mello, Daniel Henrique Carneiro Salim, Gustavo Ferreira Simoes
Summary: This study verifies the accuracy and application range of UAV photogrammetry in landfill monitoring, and its advantages compared to traditional survey procedures. The results demonstrate that UAV aerial photogrammetry provides efficient operational performance and effective information for landfill projects.
Article
Engineering, Geological
Michael J. J. Bentley, Jonathan M. M. Foster, Joshua J. J. Potvin, George Bevan, James Sharp, David J. J. Woeller, W. Andy Take
Summary: This passage discusses the susceptibility of river bank slopes incised into Champlain Sea Clay to highly retrogressive landslides and the concept of progressive failure. It explores whether surface displacement measurements can serve as an indicator of potential expansion of a progressive failure surface. The monitoring program conducted on an inclined slope found that sufficient pre-failure deformations exist to be measurable precursors to progressive failure.
Article
Multidisciplinary Sciences
Nicolas Pucino, David M. Kennedy, Rafael C. Carvalho, Blake Allan, Daniel Ierodiaconou
Summary: Sandy beaches provide natural protection from wave impacts, but with increasing coastal erosion hazards globally, data for informing erosion mitigation and adaptation strategies is crucial. This study demonstrates a novel approach combining citizen science with low-cost unmanned aerial vehicles to reliably produce survey-grade morphological data for modeling sediment dynamics, particularly for analyzing coastal erosion dynamics.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Civil
Marian Muste, Haowen Xu
Summary: This paper presents a case study on monitoring sedimentation processes at a multi-barrel culvert site using an in-situ methodology. The study combines ground and aerial surveys with traditional hydro-geomorphological monitoring techniques to comprehensively investigate culvert sedimentation processes. The research provides practical insights into the interplay between local hydraulic and geomorphological variables.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Sebastian Pose, Stefan Reitmann, Gero Joern Licht, Thomas Grab, Tobias Fieback
Summary: Climate change presents distinct challenges for monitoring inland waters, prompting the development of an application using an autonomous swimming vehicle (ASV). This application offers simulations, spatial and depth-resolved monitoring of water parameters, bathymetry detection, and respiration measurement. The integration of a high-resolution sonar system with a clustered load system is compared to underwater photogrammetry objects, generating a comprehensive 3D survey of the water body. The collected data are used to train artificial intelligence (AI) in a virtual reality (VR) simulation, improving the ASV's autonomous control and exploring the potential of augmented reality (AR) for visualizing and utilizing measurement data.
Article
Chemistry, Multidisciplinary
Konstantinos G. Nikolakopoulos, Aggeliki Kyriou, Ioannis K. Koukouvelas
Summary: Remote sensing data and techniques are widely used for monitoring and managing natural or man-made disasters. This research investigates the relationship between UAV acquisition geometry and topographic characteristics of landslide areas in order to improve the accuracy of mapping and monitoring. The study reveals a strong relationship between UAV acquisition geometry and landslide characteristics, and demonstrates the benefits of integrating nadir and oblique imagery in improving overall accuracy.
APPLIED SCIENCES-BASEL
(2022)
Article
Environmental Sciences
M. Amparo Nunez-Andres, Albert Prades-Valls, Gerard Matas, Felipe Buill, Nieves Lantada
Summary: An automated camera system was developed to analyze rockfall precursory movements and volume changes after detachments. The system consists of three digital cameras managed by a Raspberry Pi 4 microprocessor. Images taken daily are processed to detect movements using a matching and correlation process. The system has been successfully detecting movements and rockfalls since September 2021.
Article
Chemistry, Multidisciplinary
Yu Han, Xugang Lian, Fan Wang, Haodi Fan
Summary: This study utilizes digital image monitoring technology to real-time monitor the deformation of slopes. The non-metric digital camera is calibrated using the Zhang Zhengyou calibration method. The sub-pixel algorithm is used to identify the center coordinates of landmarks, and the displacement trend of the slope is calculated by combining the specific displacement value. The outdoor experimental results show that the monitoring accuracy of this method can reach millimeter level.
APPLIED SCIENCES-BASEL
(2022)