AbstractThe technological boost of drones and satellites offers new and more flexible platforms for video-based depth inversion. It signals a desire to generate depth estimates on-the-fly, requiring more flexibility and high computational speeds. For this purpose, a novel algorithm was developed, which is based on the Dynamic Mode Decomposition. The analysis of video from three different field-sites in the Netherlands, Australia and US, suggests that 32 s of video are sufficient to correctly capture the significant wave components in the wave-field. It means that DMD-based depth inversion is suited for fast coastal reconnaissance.
Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/TcE13C1oTKw
Askham, & Kutz (2018): Variable projection methods for an optimized dynamic mode decomposition. SIAM Journal on Applied Dynamical Systems, 17(1), 380-416.
Gawehn, de Vries, Aarninkhof (2019): Depth and Surface Current Inversion On-the-fly: A new Video-based Approach using the Dynamic Mode Decomposition. Coastal Sediments 2019, pp. 2511-2520.
Schmid (2010): Dynamic mode decomposition of numerical and experimental data. Journal of Fluid Mechanics, 656, pp. 5-28.
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