%0 Journal Article
%T A New SAR Image Edge Detection Technique<br>一种新型雷达图像边缘提取技术
%A HAN Chun-ming
%A GUO Hua-dong
%A WANG Chang-lin
%A <br>韩春明
%A 郭华东
%A 王长林
%J 遥感学报
%D 2002
%I 
%X Since SAR sensors have limited bandwidths, this leads to slow responses to sudden changes ( smearing sharp edges) . Thus, it is difficult to detect edges in SAR images. A new edge detection method is developed to detect edges in SAR images in this paper. There are two steps to accomplish it. First, the local area is segmented into one bright area and one dark area. Second, the boundary of the bright area and the dark area is regarded as the edge, and the edge is identified based on intensity variety. Application of this method to SAR images has shown that the method can effectively detect edges.
%K edge detection
%K image segmentation<br>边缘检测
%K 图像分割
%K 合成孔径雷达
%K 亮度
%K 雷达图像
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=A41A70F4AB56AB1B&jid=F926358B31AC94511E4382C083F7683C&aid=D51F6091103895EB&yid=C3ACC247184A22C1&vid=B31275AF3241DB2D&iid=B31275AF3241DB2D&sid=5CB576B96D187F64&eid=F176272DD933A0BB&journal_id=1007-4619&journal_name=遥感学报&referenced_num=0&reference_num=3