Coastline detection using coupled variational level-set formulation

In this paper, we describe a method of detecting dynamic coast-lines from ground-level images using an integrated level-set framework. A dynamic coastline is represented as the longest boundary of intersection of multiple moving fronts (geometric active contours) corresponding to multiple regions within the image together with model of their evolution using the level set formulation. The evolution of the various moving front is modelled using an adaptive variational formulation of the level set function that in-turn minimizes an appropriate energy function. We explore the performance of the model and show that the proposed method achieves better accuracy than other widely used methods for coastline extraction.