Study on Coastline Extraction Technology

The coastline position determination is the important content of the coastal zone,island and reef surveying.It is very important to monitor the dynamic change of coastline rapidly and accurately regarding the sea area use and management.Remote sensing technique has fast,dynamic,large scope,macroscopic and such prominent advantages.The advances in coastline extraction based on remote sensing was emphasized,the method in coastline extraction based on the DEM of the intertidal zone and tidal model was proposed,the advantage and disadvantage were analyzed,and the future research orientation was forecasted based on its existent insufficiency in brief.