资源简介
信号稀疏表示,去噪处理,稀疏分解后重构性能非常好
代码片段和文件信息
%function:MP(matching pursuit匹配追踪) algorithm applied to decomposition of one signal named bat
%this program is for explaining the theory of signal sparse decomposion by
%MPto help the readers to understand the comcept and the process of MP
%method.
%the over-complete dictionary used in the program is the Gabor atom
%dictionary
%ATTENTION:it‘s maybe not possible to construct the dictionary at one time
%and to use it forever.
%because the memory is so limited compared with the memory needed
%part one:
f=double(imread(‘e:\lena256.bmp‘));%得出图象矩阵
bat=f(128:);%取图象数据中的一行
%part two:
%part 2.1
%determine the decomposition parameters
%the matching pursuit processing iterative number
iterative_number=10;
%the length of signal and the length of atoms;N
[aN]=size(bat);
%signa
属性 大小 日期 时间 名称
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文件 4603 2009-07-30 20:53 xishubiaoshi.m
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