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Coastline automatic detection based on high resolution SAR images

The reclamation in coastal areas has been playing an increasingly important role in expanding living space, which has aroused wild public concerns. With the increasing number of remote sensing images, the need to automatically achieve the precise coastline reflecting the status of reclamation has never been so urgent as it is now. While it is difficult to search the accurate coastline, because of the existence of speckle noises in Synthetic Aperture Radar (SAR) images. A novel geometric active contour model (GACM) is proposed in this paper, which can adjust adaptively according to the equivalent number of looks (ENL) of each SAR image. The experiments of Jizhou gulf with different kinds of high-resolution remote sensing images demonstrate the effectiveness of the proposed GACM algorithm.