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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/208210
A cost-effective image-based system for 3D geomorphic monitoring: An application to rockfalls
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Change-detection monitoring plays a crucial role in geoscience, facilitating the examination of earth surfaceprocesses and the mitigation of potential risks due to natural hazards. A significant aspect of this monitoringinvolves the use of images, enabling 2D to 4D monitoring approaches. Our objective is to bridge the knowledgegap 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 systemquality. The results obtained in the study area of Puigcerc´os cliff in Spain demonstrates the system's efficacy indetecting rockfalls and pre-failure deformation with a notable level of detection of only 8 cm in the changedetection 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 usinga single battery. Both solutions showcase the potential of leveraging very low-cost technology in geohazardmonitoring.
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BLANCH GORRIZ, Xabier, et al. A cost-effective image-based system for 3D geomorphic monitoring: An application to rockfalls. Geomorphology. 2024. Vol. 449, num. 1-12. ISSN 0169-555X. [consulted: 18 of August of 2026]. Available at: https://hdl.handle.net/2445/208210