%0 Journal Article
%T Dense Disparity Map Estimation Approach Based on PDE<br>基于偏微分方程的稠密视差图获取方法
%A YNU Ting
%A XIAO Liang
%A WU Huizhong
%A <br>云 挺
%A 肖 亮
%A 吴慧中
%J 中国图象图形学报
%D 2009
%I 
%X Stereo matching is studied in the paper, which has been a very hot research topic at present.An energy based algorithm inspired by PDE and machine vision theory is proposed to estimate a dense disparity map between two images.Firstly, the effects of matching pairs at various relative positions to the attachment item are analyzed.Secondly, anisotropic heat diffusion equation adapts to disparity map is presented, which inherited from the ability of the Alvarez defining regularization item that keeping the discontinuities across the boundaries of the image and smoothing disparity inside the boundary.In addition image noise shielded function and second order directional derivative are introduced to separately control disparity diffusion velocity of different area and diffusion direction of edge position.At last, new energy function according to our approach is defined, adopting the output of the area stereo matching method as the initial value and steepest descent is exploited to solve the energy functional.Experiment results demonstrate the effectiveness of our approach, both in the visual effect and 3D depth retrieval.
%K stereo matching
%K dense disparity map
%K partial derivative equation (PDE)
%K regularization item
%K attachment item<br>立体匹配
%K 稠密视差图
%K 偏微分方程
%K 匹配项
%K 保真项
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=381CAC140CC10D74E4732B900389158C&yid=DE12191FBD62783C&vid=F3583C8E78166B9E&iid=E158A972A605785F&sid=5A027C8E6C570AAB&eid=94655B9881133A28&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=12