資源簡(jiǎn)介
序列圖像的超分辨率重建指的是利用一系列已經(jīng)獲得的分辨率相對(duì)比較低的圖像，通過(guò)現(xiàn)有的技術(shù)手段以及方法，恢復(fù)出較高分辨率圖像的方法。每一幅低分辨率圖像只能提供高分辨率圖像的部分信息。超分辨率重建具有多方面的優(yōu)點(diǎn)，比如不涉及硬件以及成本相對(duì)較低等。基于此，該技術(shù)在刑偵、交通、軍事以及生活中都具有廣泛的應(yīng)用前景和實(shí)用價(jià)值。論文簡(jiǎn)述了圖像超分辨率重建的關(guān)鍵技術(shù)和方法，詳細(xì)介紹了超分辨率重建的MAP算法和POCS算法，重點(diǎn)分析了兩種常用算法各自的評(píng)價(jià)結(jié)果并且對(duì)兩種算法進(jìn)行了比較實(shí)驗(yàn)。實(shí)驗(yàn)結(jié)果表明，兩種方法具有不同的優(yōu)點(diǎn)以及應(yīng)用范圍，從而對(duì)序列圖像的超分辨率重建的過(guò)程以及評(píng)價(jià)有了相對(duì)較深入的認(rèn)識(shí)。
代碼片段和文件信息
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%?
%?POCS?Image?Reconstruction?
%?-------------------------?
%??AUTHOR:?Stephen?Rose?Maher?Khoury?
%????DATE:?March?1?1999?
%?PURPOSE:?Generates?SR?frame?using?the?POCS?method?
%?
%?
%?
%?Notes:?
%???-init.m?contains?the?affine?transformation?parameters?
%???-Assuming?a?gaussian?PSF?
%???-uv?are?affine?transformation?vectors?for?（xy）?
%???-mcXmcY?are?transformed?coordines?in?SR?frame?
%?
%?Variables:?
%???-ref????????????=?LR?reference?frame?
%???-upref??????????=?HR?reference?frame?
%???-NumberOfframes?=?Number?of?pixel?frames?to?consider?
%???-frame??????????=?LR?frame?currently?being?examined?
%???-weights????????=?weights?based?on?Gaussian?PSF?
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%?
%%%?Initialization?
%init;?
NumberOfframes?=?5;?
k?=?zeros（14）;?
addpath（genpath（‘D:\Documents\項(xiàng)目\9938\功能說(shuō)明\新建文件夾?（2）\POCS‘））;
%%%?Create?the?high-resolution?reference?frame?
ref?=?pgmread（‘D:\Documents\項(xiàng)目\9938\功能說(shuō)明\新建文件夾?（2）\POCS\POCS\taxi\taxi01.pgm‘）;?
figure;?
ShowIm（ref）;?
colormap（gray）;
drawnow;
ref?=double（ref）;%（1:size（ref1）./21:size（ref2）./2））;?
%%%Interpolate?values?at?inbetween?points?
[x?y]?=?meshgrid（1:size（ref2）?1:size（ref1））;?
[X?Y]?=?meshgrid（1:2.*size（ref2）?1:2.*size（ref1））;?
upref?=?interp2（xydouble（ref）X./2Y./2‘linear‘）;?
upref（isnan（upref））?=?0;?
figure;?
ShowIm（upref）;?
colormap（gray）;
drawnow;?
%%%?Iterate?the?entire?process?
for?iter=1:10?
??disp（iter）;?
??%%%?Iterate?over?the?frames?
??for?num?=?2:NumberOfframes?
????%%%?Read?in?the?frame?
????if?（num???????frame?=?pgmread（strcat（‘D:\Documents\項(xiàng)目\9938\功能說(shuō)明\新建文件夾?（2）\POCS\POCS\taxi\taxi0‘num2str（num）‘.pgm‘））;?
????else?
??????frame?=?pgmread（strcat（‘D:\Documents\項(xiàng)目\9938\功能說(shuō)明\新建文件夾?（2）\POCS\POCS\taxi\taxi0‘num2str（num）‘.pgm‘））;?
????end?
????frame?=?double（frame）;%（1:size（frame1）./21:size（frame2）./2））;?
????%%%Calculate?the?affine?motion?parameters?for?this?frame?
????k?=?affine（frameref）;?
????u?=??k（1）.*X?+?k（2）.*Y?+?2.*k（3）;?
????v?=?-k（2）.*X?+?k（1）.*Y?+?2.*k（4）;?
????%%%?Calculate?the?coordinates?of?the?motion?compensated?pixels?
????mcX?=?X?+?u;?
????mcY?=?Y?+?v;?
????%%%?Loop?over?entire?（low-res）?frame?
????for?m2?=?1:size（frame2）?
??????for?m1?=?1:size（frame1）?
????????%%%?Get?high-resolution?coordinates?
????????n1?=?2*m1;?
????????n2?=?2*m2;?
????????%%%?Get?coordinates?of?the?motion?compensated?pixel?
????????N2?=?mcX（n1n2）;?
????????N1?=?mcY（n1n2）;?
????????%%%?If?not?a?border?pixel?
????????if?（?N1>3?&?N13?&?N2
????????%%%?Find?center?of?the?window?where?the?PSF?will?be?applied?
????????rN1?=?round（N1）;?
????????rN2?=?round（N2）;?
????????%%%?Calculate?the?effective?window?
????????windowX?=?Y（rN1-2:rN1+2rN2-2:rN2+2）;?
????????windowY?=?X（rN1-2:rN1+2rN2-2:rN2+2）;?
????????%%%?Find?the?value? ?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-10-10?15:39??源碼\
?????文件??????404782??2016-05-04?18:54??源碼\9938.docx
?????目錄???????????0??2016-05-04?18:59??源碼\POCS\
?????目錄???????????0??2016-05-04?18:59??源碼\POCS\POCS\
?????文件????????4121??2016-05-04?13:10??源碼\POCS\pocs.m
?????目錄???????????0??2016-05-04?18:59??源碼\POCS\POCS\code\
?????文件????????1315??2008-10-13?10:51??源碼\POCS\POCS\code\affine.m
?????文件????????2214??2007-06-25?10:25??源碼\POCS\POCS\code\corrDn.m
?????文件????????1637??2007-06-18?21:22??源碼\POCS\POCS\code\grad.m
?????文件???????16748??2008-10-20?09:24??源碼\POCS\POCS\code\Lena_LR_1.tif
?????文件???????16772??2008-10-20?09:24??源碼\POCS\POCS\code\Lena_LR_2.tif
?????文件???????16756??2008-10-20?09:24??源碼\POCS\POCS\code\Lena_LR_3.tif
?????文件???????16760??2008-10-20?09:24??源碼\POCS\POCS\code\Lena_LR_4.tif
?????文件????????4220??2008-10-24?14:01??源碼\POCS\POCS\code\lena_pocs.asv
?????文件????????4220??2008-10-24?14:01??源碼\POCS\POCS\code\lena_pocs.m
?????文件????????1299??2007-06-18?21:24??源碼\POCS\POCS\code\Parametric.m
?????文件?????????728??2003-06-05?18:06??源碼\POCS\POCS\code\pgmread.m
?????文件????????1288??2003-11-03?17:34??源碼\POCS\POCS\code\pgmwrite.m
?????文件????????5401??2003-11-02?11:47??源碼\POCS\POCS\code\pnmimpnminfo.m
?????文件????????3175??2003-11-02?11:46??源碼\POCS\POCS\code\pnmpnmgeti.m
?????文件????????1204??2003-06-05?18:06??源碼\POCS\POCS\code\pnmread.m
?????文件???????10076??2003-11-02?11:48??源碼\POCS\POCS\code\pnmreadpnm.m
?????文件???????29861??2003-11-03?11:08??源碼\POCS\POCS\code\pnmwritepnm.m
?????文件????????3936??2008-10-14?09:17??源碼\POCS\POCS\code\pocs.m
?????文件????????3983??2007-06-25?10:59??源碼\POCS\POCS\code\pocs2.asv
?????文件????????4022??2007-09-10?19:18??源碼\POCS\POCS\code\pocs2.m
?????文件????????1483??2007-06-18?21:50??源碼\POCS\POCS\code\rconv2.m
?????文件?????????561??2007-06-18?09:20??源碼\POCS\POCS\code\ReadIm.m
?????文件???????66296??2008-10-20?09:55??源碼\POCS\POCS\code\result_VA_PO_1.tif
?????文件?????????582??2007-06-18?09:10??源碼\POCS\POCS\code\ShowIm.m
?????文件??????195599??2007-09-10?19:23??源碼\POCS\POCS\code\SRfr
............此處省略120個(gè)文件信息
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