%0 Journal Article
%T Pseudosphere Filter and Edge Detection<br>伪球滤波和边缘检测
%A WANG Zhi-Heng
%A WU Fu-Chao
%A <br>王志衡
%A 吴福朝
%J 软件学报
%D 2008
%I 
%X An image filter called the pseudosphere filter is presented in this paper.An edge-preserving parameter is introduced besides a scale parameter in the pseudosphere filter,and thus a better trade-off between image smoothing and edge locating can be obtained by using it.A pseudosphere-based edge detector is built by replacing the Gaussian filter in the classic Canny edge detector with the pseudosphere filter.Experimental results show that, by comparing with the classic Canny edge detector,in the case of having the same smoothness,pseudosphere-based edge detector offers a better precision for edge locating.
%K tractrix filter
%K pseudosphere filter
%K edge detector<br>拽物线滤波
%K 伪球滤波
%K 边缘检测算子
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=FE47C2D72D1EF376C77FD7CF5BDA3AB6&yid=67289AFF6305E306&vid=2A8D03AD8076A2E3&iid=E158A972A605785F&sid=EAF6504CC0383BDF&eid=43AADF4B53A8BF6F&journal_id=1000-9825&journal_name=软件学报&referenced_num=0&reference_num=17