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- W2775021919 abstract "Accurate and inexpensive mapping of the littoral zone has implications in land management, cadastral systems, and erosion monitoring. In this study, a small unmanned aircraft system (UAS) equipped with a consumer-grade RGB digital camera is used to evaluate structure-from motion (SfM) photogrammetry and optimal inversion, individually and infusion, for deriving topography and bathymetry elevation. The study area consists of an engineered beach with a shallow littoral zone. First, a comparison is made between 3D point cloud measurements derived from SfM processing and RTK GPS survey data. A denoising method is developed to filter accurate SfM substrate points. Next, a method of band ratio optimization, or optical bathymetric inversion, is evaluated where the water surface occludes and disrupts the SfM feature matching process. Results show that a complementary data fusion method enables generation of a seamless topo-bathymetric elevation model." @default.
- W2775021919 created "2017-12-22" @default.
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- W2775021919 date "2017-07-01" @default.
- W2775021919 modified "2023-09-26" @default.
- W2775021919 title "Fusion of uas-based structure-from-motion and optical inversion for seamless topo-bathymetric mapping" @default.
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- W2775021919 doi "https://doi.org/10.1109/igarss.2017.8127629" @default.
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