%0 Journal Article
%T Auto-Recognizing Ridge lines and Ravine Linesby Com puter<br>山脊线与山谷线的计算机自动检测
%A Yu Shengchen
%A Liu Dayou
%A <br>余生晨
%A 刘洪
%J 中国图象图形学报
%D 1999
%I 
%X Ridge Lines and ravine linesare extracted autom atically from terrain contourm ap, by acquiring directionalderiva tions verticalw ith ridge line and ravine line w ith FourierTransform in frequency (w ave dom ain) dom ain.
%K Ridge line
%K Ravine line
%K Directionalderivation
%K Fourier Transform<br>山脊线
%K 山谷线
%K 方向导数
%K 计算机检测
%K GIS
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=48A44634809F86CDA80427CBE0BCBAD9&yid=B914830F5B1D1078&vid=E158A972A605785F&iid=5D311CA918CA9A03&sid=99A964928ADB4E67&eid=A7379F6713A46835&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=5&reference_num=0