%0 Journal Article
%T Projected Wavelet-Domain MAP Estimation Super-resolution Algorithm for Passive Millimeter Wave Imaging<br>投影小波域MAP估计无源毫米波图像超分辨算法
%A Jin Xin
%A Xiong Jin-tao
%A Li Liang-chao
%A Yang Jian-yu
%A <br>金 鑫
%A 熊金涛
%A 李良超
%A 杨建宇
%J 电子与信息学报
%D 2010
%I 
%X In passive millimeter wave imaging, the problem of poor resolution of acquired image stems mainly from system antenna size limitations. In order to achieve resolution improvements, a Projected Wavelet-domain Maximum A Posteriori (PWMAP) estimation super-resolution algorithm is proposed in this paper. This algorithm restores the spectrum in the pass-band based on wavelet domain using the generalized Gaussian distribution and the MAP estimate; then extrapolate the spectrum by using the non-linear projection operation. This algorithm can not only provide a more accurate priori model than previous algorithms, but also updates the parameter adaptively at each iteration. Experimental results show the effectiveness and superiority of the algorithm.
%K Passive millimeter wave imaging
%K Super-resolution
%K Wavelet-domain
%K Adaptive method
%K Non-linear operation<br>无源毫米波成像
%K 超分辨
%K 小波域
%K 自适应
%K 非线性运算
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=D1475EDF9F7ED25497F41D7973D35086&yid=140ECF96957D60B2&vid=9971A5E270697F23&iid=E158A972A605785F&sid=BF6EDE6C10074464&eid=3DC9CEF02B8360EE&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=14