Drone application for water infrastructure reality modeling |
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학술지명 9th International Symposium on Environmental Hydra
저자 박동순,김태민
발표일 2021-07-20
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Case studies of drone photogrammetry for 5 dams were made for checking improvement of efficiency, time, and labor for dam safety inspection and diagnosis. Digital surface models and orthoimages were successfully obtained with some notable know-hows. A 3D digital model of dam spillway reliably quantified the deterioration of concrete structures. AI-driven major crack detection for spillway was fairly good in spite of the modest machine learning dataset of cracks. A well-organized drone photogrammetry was found to significantly improve time and labor by more than 30% comparing to manned dam safety inspection and diagnosis. Drone photogrammetry is contributable to effectively improve the productivity of dam safety work. |