%0 Journal Article
%T Subpixel Edge Location Using Improved LSR<br>水平集重构方法改进及亚像素边缘定位
%A YI Mo
%A LIU Zhong-xuan
%A PENG Si-long
%A <br>易沫
%A 刘忠轩
%A 彭思龙
%J 中国图象图形学报
%D 2005
%I 
%X Traditional subpixel edge location algorithms use local model to realize precise edge location.Which leads to side effects such as Zigzag effect and discontinuous edges.We present a new subpixel edge location algorithm based on partial differential equation(PDE),where level-set reconstruction(LSR) is introduced to smooth edge along their tangents.Anchor and topology constraints are used to avoid over-smoothing and keep edge topology structures.Subpixel edge location experiments with both geometric and natural image show that this method can remove zigzag effect while keeping edge smoothness and continuity.
%K subpixel
%K edge location
%K level set reconstruction<br>亚像素
%K 边缘定位
%K 水平集重构
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=83168AC19F9C0D6D&yid=2DD7160C83D0ACED&vid=F3090AE9B60B7ED1&iid=F3090AE9B60B7ED1&sid=E97B7F8EBE42C30F&eid=80428A5C4056DF37&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=14