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SAR-Based Marine Oil Spill Detection Using the DeepSegFusion Architecture

Detection of oil spills from satellite images is essential for both environmental surveillance and maritime safety. Traditional threshold-based methods frequently encounter performance degradation due to very high false alarm rates caused by look-alike phenomena such as wind slicks and ship wakes. Here, a hybrid deep learning model, DeepSegFusion, is presented for oil spill segmentation in Synthetic Aperture Radar (SAR) images. The model uses SegNet and DeepLabV3+ integrated with an attention-based feature fusion mechanism to achieve better boundary precision as well as improved contextual understanding. Results obtained on SAR oil spill datasets, including ALOS PALSAR imagery, confirm that the proposed DeepSegFusion model achieves an accuracy of 94.85%, an Intersection over Union (IoU) of 0.5685, and a ROC-AUC score of 0.9330. The proposed method delivers more than three times fewer false detections compared to individual baseline models and traditional non-segmentation methods, achieving a reduction of 64.4%. These results indicate that DeepSegFusion is a stable model under various marine conditions and can therefore be used in near real-time oil spill monitoring scenarios.

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