CAJ | 학술논문

海岸线是海洋与陆地的交界线，全球气候变化将引起海岸线的变迁，极地区域拥有最大的冰川，冰川的消融将导致全球海岸线的迅速变迁，因此研究极地海岸线具有重要的科学意义。由于潮汐等影响，卫星影像提取的海洋与陆地的交界线只是海岸水边线，本文以格陵兰岛海岸为实验对象，采用Gamma滤波方法对合成孔径雷达（SAR）数据的相干斑进行预处理，提出了应用支持向量机（SVM）和Canny边缘检测算子的海岸水边线提取方法，基于TerraSAR-X影像的实验结果表明，本文提取的格陵兰海岸水边线准确率都达60％以上。
해안선시해양여륙지적교계선，전구기후변화장인기해안선적변천，겁지구역옹유최대적빙천，빙천적소융장도치전구해안선적신속변천，인차연구겁지해안선구유중요적과학의의。유우조석등영향，위성영상제취적해양여륙지적교계선지시해안수변선，본문이격릉란도해안위실험대상，채용Gamma려파방법대합성공경뢰체（SAR）수거적상간반진행예처리，제출료응용지지향량궤（SVM）화Canny변연검측산자적해안수변선제취방법，기우TerraSAR-X영상적실험결과표명，본문제취적격릉란해안수변선준학솔도체60％이상。
Global climate change will cause changes in coastlines,the boundary between land and sea.Polar regions have the largest glaciers,and melting of these glaciers could lead to rapid changes in coastlines throughout the world.Therefore,research on polar coastlines is important.Satellite images can be used to determine the coastal water boundary line.In this paper,we investigated the coast of Greenland using the Gamma filtering method for speckle preprocessing of Synthetic Aperture Radar (SAR)data.We present a method combining the Support Vec-tor Machine (SVM)and the Canny edge detection operator to extract the coastal water boundary line.Using this approach,the extraction accuracy of the Greenland coastline from TerraSAR-X images was up to 60 percent.