A cost-effective image-based system for 3D geomorphic monitoring: an application to rockfalls
Change-detection monitoring plays a crucial role in geoscience, facilitating the examination of earth surface processes and the mitigation of potential risks due to natural hazards. A significant aspect of this monitoring involves the use of images, enabling 2D to 4D monitoring approaches. Our objec...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/413641 |
| Acceso en línea: | https://hdl.handle.net/2117/413641 https://dx.doi.org/10.1016/j.geomorph.2024.109065 |
| Access Level: | acceso abierto |
| Palabra clave: | Photogrammetry Landslide hazard analysis Rockfalls Structure-from-motion Natural hazard Fotogrametria Risc d'esllavissades Àrees temàtiques de la UPC::Enginyeria civil::Geomàtica Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls |
| Sumario: | Change-detection monitoring plays a crucial role in geoscience, facilitating the examination of earth surface processes and the mitigation of potential risks due to natural hazards. A significant aspect of this monitoring involves the use of images, enabling 2D to 4D monitoring approaches. Our objective is to bridge the knowledge gap in developing very low-cost camera units by providing insights into specific products, assembly processes, and utilized codes. The presented approach involves prioritizing cost reduction albeit a trade-off in system quality. The results obtained in the study area of Puigcercós cliff in Spain demonstrates the system's efficacy in detecting rockfalls and pre-failure deformation with a notable level of detection of only 8 cm in the change detection analysis. Additionally, two system versions are presented; one emphasizing real-time image transmission, while the other provides a simpler, energy-efficient approach conducive to long-term data capture using a single battery. Both solutions showcase the potential of leveraging very low-cost technology in geohazard monitoring. |
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