Abstract
This work presents a method for oil-spill detection on Spanish coasts using aerial Side-Looking Airborne Radar (SLAR) images, which are captured using a Terma sensor. The proposed method uses grayscale image processing techniques to identify the dark spots that represent oil slicks on the sea. The approach is based on two steps. First, the noise regions caused by aircraft movements are detected and labeled in order to avoid the detection of false-positives. Second, a segmentation process guided by a map saliency technique is used to detect image regions that represent oil slicks. The results show that the proposed method is an improvement on the previous approaches for this task when employing SLAR images.
Highlights
Maritime transport and oil rigs are the main causers of marine pollution as a result of tank cleaning and accidents
That In is, the oil slickwe is detected as aan unique dark spot region and the detected oil spill does not, In this work, we propose oil slick detection method for images using astrategy strategy based on image processing and computer vision techniques without using the characterization of oil slicks on image processing and computer vision techniques without using the characterization of oil slicks on on image image processing processing and computer computer vision vision techniques without without using the the characterization characterization of of oil oil slicks slicks appear segmented inand several regions as if techniques it were composed ofusing several dark spot regions
All these on image processing and computer vision techniques without using the characterization of oil slicks obtained from the multi-polarization features of radar
Summary
Maritime transport and oil rigs are the main causers of marine pollution as a result of tank cleaning and accidents. Ships transport more than 500 million tons of petrol and 300 million of oil products each year and, according to information obtained from the Spanish Maritime Safety Agency (SASEMAR), this maritime traffic spills more than 20 million m3 /year of both oil and other hydrocarbons into the waters of the European Union. Oil spill detection is currently carried out by the European Maritime Safety Agency (EMSA), whose CleanSeaNet observation services for oil spill monitoring and vessel detection do so using image from ENVISAT, RASARSAT and SENTINEL satellites, among others. The second step is required because the EMSA satellites can monitor only the same point on the surface of the sea every three days, while and the oil spill continues to expand on the surface, causing significant environmental damage
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