oceanlove

Development of digital bathymetric models from hydroacoustic and photogrammetric data   Geoinformatic techniques to combine bathymetric data for shallow and ultra-shallow waters By   Jacek Łubczonek ,  Witold Kazimierski ,  Grzegorz Zaniewicz   •   June 7, 2022 Unmanned vehicles, both surface and airborne, are increasingly being used for hydrographic surveying. While the technology of data acquisition using these platforms is generally known, the fusion of this data is still the subject of much research, and the methods applied often depend on the sensors used and the properties of the survey area. This study presents a method for fusing data acquired using unmanned surface vehicle (USV) and unmanned aerial vehicle (UAV) measurement platforms to develop a digital bathymetric model. The case analysed concerns shallow water and ultra-shallow water up to the boundary with the shoreline. Approaches for combining bathymetric data Various methods are currently us...

New software enables AI-powered bathymetric data processing  Hydroacoustic technology specialist GeoAcoustics has officially released GS4 software v1.0.25 for GeoSwath bathymetric sonars, adding several upgrades including an artificial intelligence data processing system developed in collaboration with the University of East Anglia. The new AI processing augments the existing automated filtering in the GS4 software by removing surplus and undesired data autonomously; during acquisition, the system is designed to log clean data, without any user intervention in the cleaning process, enabling better operational agility and decision support while cutting the time to final data in post-processing. Real-time processing The processing happens in real time, so users only need to oversee data quality and coverage during acquisition, while at the post-processing stage the focus can be purely on georeferencing the bathymetric data using deterministic calculations. The final, noise free and h...