%0 Journal Article
%T Recognition and positioning of hailstorm based on chain code information<br>基于链码信息的雹云识别及冰雹落区定位
%A WANG Ping
%A RUI Qian-mei
%A JIA Hui-zhen
%A <br>王萍
%A 芮乾梅
%A 贾惠珍
%J 计算机应用
%D 2007
%I 
%X In this paper, a new method of processing codes was proposed, which enabled the Minimize Sum Statistical Direction Code (MSSDC) based on Freeman chain code to be invariant to the origin and rotating, and also enabled the direction entropy to be invariant to scaling. In addition, a statistical algorithm was also proposed, which can detect the given shape effectively and supply important premise to position hailstorm area. The experiments show that the method can not only acquire high processing speed and high accuracy and robustness of the template matching, but also position the hail area accurately.
%K Freeman链码
%K 图像描述
%K 形状特征提取
%K 雹云识别
%K 链码
%K 信息
%K 雹云识别
%K 冰雹
%K 落区
%K 定位准确
%K information
%K chain
%K code
%K based
%K positioning
%K 模板匹配
%K 速度
%K 处理方法
%K 结果
%K 实验
%K 前提
%K 形状特征
%K 鉴别
%K 统计计算方法
%K 尺度不变性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=14E16CBD274305127B82DE1BBB069FCA&yid=A732AF04DDA03BB3&vid=DB817633AA4F79B9&iid=0B39A22176CE99FB&sid=BD7D27247C63490C&eid=A6683C8C0EB9BCA7&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=7