Extract Ship Targets from High Spatial Resolution Remote Sensed Imagery with Shape Feature

Different routes are designed and applied to extract the two kinds of ships in this paper. The method can be divided into three main steps: extract water polygons with histogram segmentation, extract holes in the water polygons with morphological operations as the possible sailing ships, and extract possible moored ship with the identification of salients along the water boundary, and then screen real ships out of these possible ships with more shape constraints. Experiments give good results.