資源簡介
本資源采用的是TVAL_3算法,來完成壓縮感知中的圖像融合技術。

代碼片段和文件信息
%?This?simple?demo?examines?if?TVAL3?works?normally.?Please?try?more?demos
%?in?the?“Demos“?directory?which?would?show?users?what?TVAL3?is?capable?of.
%?
%?I:?64x64?phantom?(real?two-dimentional)
%?A:?random?matrix?without?normality?and?orthogonality?(real)
%?f:?observation?with/without?noise?(real)
%
%?Written?by:?Chengbo?Li
%?Advisor:?Prof.?Yin?Zhang?and?Wotao?Yin
%?CAAM?department?Rice?University
%?05/21/2009
%?clear;?close?all;
%?path(pathgenpath(pwd));
%?fullscreen?=?get(0‘ScreenSize‘);
%?
%?%?problem?size
%?n?=?64;
%?ratio?=?.3;
%?p?=?n;?q?=?n;?%?p?x?q?is?the?size?of?image
%?m?=?round(ratio*n^2);
%?
%?%?sensing?matrix
%?A?=?rand(mp*q)-.5;
%?
%?%?original?image
%?I?=?phantom(n);
%?nrmI?=?norm(I‘fro‘);
%?figure(‘Name‘‘TVAL3‘‘Position‘...
%?????[fullscreen(1)?fullscreen(2)?fullscreen(3)?fullscreen(4)]);
%?subplot(121);?imshow(I[]);
%?title(‘Original?phantom‘‘fontsize‘18);?drawnow;
%?
%?%?observation
%?f?=?A*I(:);
%?favg?=?mean(abs(f));
%?
%?%?add?noise
%?f?=?f?+?.00*favg*randn(m1);
%%?Run?TVAL3
clear?opts
opts.mu?=?2^8;
opts.beta?=?2^5;
opts.tol?=?1E-3;
opts.maxit?=?300;
opts.TVnorm?=?1;
opts.nonneg?=?true;
t?=?cputime;
[U?out]?=?TVAL3(Afpqopts);
t?=?cputime?-?t;
subplot(122);?
imshow(U[]);
title(‘Recovered?by?TVAL3‘‘fontsize‘18);
xlabel(sprintf(‘?%2d%%?measurements?\n?Rel-Err:?%4.2f%%?CPU:?%4.2fs?‘ratio*100norm(U-I‘fro‘)/nrmI*100t)‘fontsize‘16);
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????1466??2013-03-29?08:33??TVAL3_v1.0\demo.asv
?????文件???????1466??2013-03-29?08:36??TVAL3_v1.0\demo.m
?????文件???????3196??2010-11-10?15:41??TVAL3_v1.0\Demos\demo_barbara.m
?????文件???????2530??2010-11-10?15:08??TVAL3_v1.0\Demos\demo_complex.m
?????文件???????3961??2010-11-10?16:57??TVAL3_v1.0\Demos\demo_DFT.m
?????文件???????2611??2010-11-10?15:34??TVAL3_v1.0\Demos\demo_phantom.m
?????文件???????3225??2010-11-24?13:35??TVAL3_v1.0\Fast_Walsh_Hadamard_Transform\fWHtrans.cpp
?????文件???????8302??2010-11-29?12:54??TVAL3_v1.0\Fast_Walsh_Hadamard_Transform\fWHtrans.mexa64
?????文件???????9220??2010-11-29?12:55??TVAL3_v1.0\Fast_Walsh_Hadamard_Transform\fWHtrans.mexmaci
?????文件???????9072??2010-11-29?12:55??TVAL3_v1.0\Fast_Walsh_Hadamard_Transform\fWHtrans.mexmaci64
?????文件???????8704??2010-11-29?13:00??TVAL3_v1.0\Fast_Walsh_Hadamard_Transform\fWHtrans.mexw32
?????文件???????9216??2010-11-29?12:58??TVAL3_v1.0\Fast_Walsh_Hadamard_Transform\fWHtrans.mexw64
?????文件????????446??2010-02-15?16:19??TVAL3_v1.0\Fast_Walsh_Hadamard_Transform\ifWHtrans.m
?????文件??????11358??2010-02-17?13:43??TVAL3_v1.0\Fast_Walsh_Hadamard_Transform\newFWHTcmp.fig
?????文件???????2115??2010-06-17?12:51??TVAL3_v1.0\Fast_Walsh_Hadamard_Transform\readme.txt
?????文件??????15273??2010-11-10?14:16??TVAL3_v1.0\Solver\ftvcs_alp.m
?????文件??????14446??2010-11-10?15:33??TVAL3_v1.0\Solver\ftvcs_alp_old.m
?????文件???????5646??2010-11-10?15:55??TVAL3_v1.0\Solver\ftvcs_al_opts.m
?????文件??????14704??2010-11-10?14:16??TVAL3_v1.0\Solver\ftvcs_al_TVL2p.m
?????文件??????13827??2010-11-10?15:33??TVAL3_v1.0\Solver\ftvcs_al_TVL2p_old.m
?????文件???????2834??2010-06-17?23:13??TVAL3_v1.0\Solver\readme.txt
?????文件????????674??2010-11-09?15:39??TVAL3_v1.0\Solver\TVAL3.m
?????文件?????140166??2010-11-29?13:13??TVAL3_v1.0\User_Guide.pdf
?????文件????????284??2010-06-17?13:11??TVAL3_v1.0\Utilities\At_fWH.m
?????文件????????244??2010-06-17?12:56??TVAL3_v1.0\Utilities\A_fWH.m
?????文件?????107022??2009-06-15?08:19??TVAL3_v1.0\Utilities\barbara256.tif
?????文件????????379??2009-02-19?16:38??TVAL3_v1.0\Utilities\defDDt.m
?????文件????????197??2008-08-27?21:12??TVAL3_v1.0\Utilities\Fp1d.m
?????文件????????326??2008-11-17?19:45??TVAL3_v1.0\Utilities\Fp2d.m
?????文件????????233??2008-08-27?21:13??TVAL3_v1.0\Utilities\FpT1d.m
............此處省略17個文件信息
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