Publié le 16 août 2022
When an oil spill is detected in a port, the clean-up often requires closing off part of docks which has an impact on the logistic flow. The earlier the spill is detected, the less impact it has on the environment and the faster the port can be fully operational again. In this new project the team will develop a new workflow for oil spill detection in a port environment by using drones.
So far, oil spill detection in marine environment has been mainly based on SAR and optical satellite data, and validated on recent calamities. These spills are often dispersed over a large area and are persistent over a long time. The circumstances in a port are completely different. By using drone imagery, the researchers can offer a flexible and mobile solution with the right pixel resolution and image footprint to support oil spill detection in a port environment. They can use new cameras sensitive to specific wavelengths for the oil types envisaged and detect an oil spill as early as possible after the start of the leakage into the water. This not only reduces the potential effects on humans or the environment, but it gives the opportunity to the port authority to improve their monitoring efforts and define the cause.
Shifting from a satellite-based to a UAV-based solution may seem straightforward but it requires a different setup and image processing workflow. As data acquisition is done with low cost UAV platforms and different cameras, the team needs to define protocols for camera set-up, settings and flight execution, and develop an appropriate operational workflow to process and fuse the data in order to obtain the best data quality possible.
Within the project, VITO will work on the camera integration under the UAV platform, the operational flight procedures, develop a dedicated image processing workflow together with the University of Antwerp and help conducting the in situ field demonstrations in the Port of Antwerp-Bruges. VITO already has years of experience in drone-based image processing by developing MAPEO water. The challenge here is to keep in mind the environmental settings between a port environment are different compared to the open ocean such as relatively small water bodies (docks, locks, etc.), different circumstances (less current, waves and wind) and other oil types involved (often less viscous purified oils such as hydraulic oil or diesel).
This article first appeared on the website of VITO Remote Sensing.