%0 Journal Article
%T Information extraction from meteorological facsimile maps<br>气象传真图信息提取
%A Li Cundong
%A Xiao Chuanyi
%A Pan Hailang
%A Chen Riqing
%A Yang Jinsong
%A <br>李存东
%A 肖传毅
%A 潘海朗
%A 陈日清
%A 杨劲松
%J 中国图象图形学报
%D 2012
%I 
%X In this paper we describe the use of image processing methods to extract important information from meteorological facsimile maps for analysis and integration with other information. We propose a method based on matching feature points to judge intersecting lines. Furthermore,we propose a method based on vector products to recognize dotted line segments on vorticity lines,and we combine these methods to extract triangles on frontal lines. Experiments show that these methods work effectively.
%K meteorological facsimile maps
%K feature points
%K geopotential height lines
%K vector product
%K vorticity lines<br>气象传真图
%K 特征点
%K 等位势高度线
%K 向量积
%K 等位势涡度线
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=5B7C7E7B3FC348D3BC9BE427D99E6DAE&yid=99E9153A83D4CB11&vid=BCA2697F357F2001&iid=F3090AE9B60B7ED1&sid=0DC551EE075D9D73&eid=11F3C55CF63C495D&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=15