Oil spill detection is SAR images using meta-heuristic search algorithms

Abstract

In recent years, oil spill accidents have become increasingly frequent due to the development of marine transportation and massive oil exploitation. At present, satellite remote sensing is the principal method used to monitor oil spills. Extracting the locations and extent of oil spill spots accurately in remote sensing images reaps significant benefits in terms of risk assessment and clean-up work. Many oil spill detection methods are implemented using traditional K-means and OTSU methods. In this research, traditional segmentation methods K-means and Otsu are improved using Meta- heuristic search algorithms to increase the efficiency of oil spill detection. The Meta-heuristic algorithms that are used in this research are Genetic Algorithm, Simulated Annealing, and Particle swarm optimization. In this research, Two frameworks are implemented which have image enhancement stage, segmentation stage, and Oil Extraction stage. The two frameworks differ in the segmentation stage wherein one framework, segmentation is done based on clustering using Meta-heuristic search algorithms and in other, Segmentation is done based on thresholding using Meta-heuristic search algorithm. Two fitness functions are proposed in this research. Segmentation based clustering using Meta-heuristic Search algorithm with the proposed fitness functions is compared to the K-means clustering and Fuzzy c-means algorithm. Segmentation based thresholding using Meta-heuristic Search algorithm with the proposed fitness functions is compared to the Otsu segmentation method.