%0 Journal Article
%T Statistical approach of edge detection<br>一种基于统计的图像边缘检测方法
%A CHEN Yong-tian
%A ZHAO Chun-san
%A YANG Guang
%A ZHANG Sheng
%A <br>陈永甜
%A 赵春三
%A 杨桄
%A 张生
%J 计算机应用研究
%D 2007
%I 
%X A statistical approach of edge detection was presented. First, this approach determined gradient vector and variancecovariance. Second,it made use of non-maxima suppression to every gradient vector. Last, local standardization for gradient threshold base on statistical approach was computed and use it for edge detection. To compare with well-known edge detectors, this approach not only detects real boundary of image, but also effectively suppresses the false edge of image. This new approach receives a good effect.
%K local standardization for gradient threshold
%K image smoothing
%K edge detection
%K non-maxima suppression<br>局部标准化阈值
%K 图像平滑
%K 边缘检测
%K 非极大值抑制
%K 基于统计
%K 图像边缘
%K 检测方法
%K edge
%K detection
%K approach
%K 效果
%K 比较
%K 边缘算子
%K 梯度阈值
%K 标准化
%K 局部
%K 使用统计
%K 非极大值抑制
%K 协方差矩阵
%K 梯度向量
%K 计算
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=C793235A4E87B8F654BC10A9E88343D5&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=5D311CA918CA9A03&sid=02DC3A182A5530DF&eid=EF27C460877D3C9F&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=10