Abstract
Sea-land segmentation is a basic premise of the SAR vessel detection.The tradition manual technique is precious.but it operates complex and is time-consuming.and the coastline detection algorithm is poor in noise resistance.which is not suitable for the coastal area of islands.In this paper.an automatic segmentation method is proposed.taking advantage of the geography information.overlapping SAR with shape layer of the same sea area and turning Sea-Land segmentation to the judgment of the polygon shape element in the shape layer.which operate automatically.Finally.we test the technique by Radarsat-1 and Alos-Palsar images.The automatic segmentation technique has almost no influence to the vessel detection.and the result is close to the one of the tradition manual method.besides.it runs faster.suitable for the real-time operation.
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