%0 Journal Article
%T STUDY ON THE ENHANCEMENT AND DENOISING OF MAMMOGRAMS<br>乳腺X线图像的增强与噪声抑制研究
%A ZHANG Xin-Sheng
%A GAO Xin-Bo
%A WANG Ying
%A ZHANG Shi-Jie
%A <br>张新生
%A 高新波
%A 王颖
%A 张士杰
%J 红外与毫米波学报
%D 2010
%I Science Press
%X A new algorithm for mammograms enhancement and denoising based on multiscale geometric analysis(MGA) was proposed.Firstly,mammograms were decomposed into different scales and directional subbands by using nonsubsampled contourlet transform(NSCT).After modeling the coefficients of each directional subbands and using generalized gaussian mixture model(GGMM) according to the statistical property of the transform coefficients,they were categorized into strong edges,weak edges and noise by Bayesian classifier.A ...
%K image enhancement
%K multiscale geometric analysis(MGA)
%K nonsubsampled Contourlet transform(NSCT)
%K generalized Gaussian mixture model
%K mammograms<br>图像增强
%K 多尺度几何分析
%K 非下采样Contourlet变换
%K 广义高斯混合模型
%K 乳腺X线图像
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=D3B4F771D1A06062008B4D0A2EF05996&aid=C4045003AA639F7A883439D6807A2069&yid=140ECF96957D60B2&vid=771469D9D58C34FF&iid=CA4FD0336C81A37A&sid=DB817633AA4F79B9&eid=4AD960B5AD2D111A&journal_id=1001-9014&journal_name=红外与毫米波学报&referenced_num=0&reference_num=0