%0 Journal Article
%T Improved 2D Otsu Algorithm for SAR Images<br>一种适用于SAR图像的2维Otsu改进算法
%A ZHU Jun
%A WANG Shixi
%A JI Kefeng
%A SU Yi
%A <br>朱 俊
%A 王世唏
%A 计科峰
%A 粟 毅
%J 中国图象图形学报
%D 2009
%I 
%X As one of the classic threshold methods for image segmentation, Otsu algorithm has been widely applied in image processing. Based on the analysis of the original 2D Otsu which has the disadvantages such as histogram area partition and time consuming, this paper introduces a new method of area partition in terms of speckle noise in SAR images, and brings forward a new rule of threshold selection which fits the image model better. The experiments show that the segmentation effect of the improved algorithm is better and its computational speed has been greatly improved.
%K threshold segmentation
%K Otsu algorithm
%K 2D histogram
%K maximum between-class variance
%K SAR<br>阈值分割
%K Otsu法
%K 2维直方图
%K 最大类问方差
%K 合成孔径雷达(SAR)
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=1FBD2682291A32370CC0FDD75765C928&yid=DE12191FBD62783C&vid=F3583C8E78166B9E&iid=CA4FD0336C81A37A&sid=F3583C8E78166B9E&eid=13553B2D12F347E8&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=10