function?[mv_x?mv_yMB_searchPredict_Imgerror]?=?EBMA（Target_ImgAnchor_ImgBlockSizeBlockLocationRangeStartRangeEndaccuracy）

%EBMA?為窮盡塊匹配算法，用來對于估計錨定幀和目標幀之間某個塊的運動矢量
%此函數(shù)被?HBMA（）調(diào)用.
%
%輸入:??Target_ImgAnchor_Img:
%???????????????目標幀和錨定幀的圖像矩陣
%????????BlockSize:
%???????????????當前塊的大小，BlockSize（1）?*?BlockSize（2）
%????????BlcokLocation:
%???????????????錨定幀中塊的位置
%????????RangeStartRangeEnd:
%???????????????搜索區(qū)域，從?（RangeStart（1）RangeStart（2））?到?（RangeEnd（1）RangeEnd（2））
%????????accuracy:
%???????????????計算的準確度:?1?為整數(shù)像素;?2?為半像素
%輸出:?mv_xmv_y:
%???????????????運動方向矢量?（mv_xmv_y）
%????????MB_search:
%???????????????搜索次數(shù)
%????????Predict_Img:
%???????????????對于給定塊的最好預(yù)測塊
%????????error:
%???????????????給定塊的最小絕對誤差和（SAD）

%設(shè)置默認的計算準確率
if?nargin????accuracy?=?1;
end

%初始化，賦值
MB_search?=?0;
ly?=?BlockLocation（1）;
lx?=?BlockLocation（2）;
Ny?=?BlockSize（1）;
Nx?=?BlockSize（2）;

%取錨定幀中的塊
AnchorBlock?=?Anchor_Img（ly:ly+Ny-1lx:lx+Nx-1）;

%初始化位移矢量?mv_x?和?mv_y
mv_x=0;
mv_y=0;

%初始化誤差（隨意，足夠大）
error?=?255*Nx*Ny*100;

%在（RangeStart（1）RangeStart（2））到（RangeEnd（1）RangeEnd（2））范圍內(nèi)搜索最優(yōu)估計
??for?y?=?RangeStart（1）:RangeEnd（1）-accuracy*Ny+1
????for?x?=?RangeStart（2）:RangeEnd（2）-accuracy*Nx+1
??????TargetBlock?=?Target_Img（y:accuracy:y+accuracy*Ny-1x:accuracy:x+accuracy*Nx-1）;
??????%計算AnchorBlock和TargetBlock之間的誤差
??????temp_error?=?sum（sum（abs（AnchorBlock-TargetBlock）））;
??????MB_search?=?MB_search+1;
??????if?temp_error????????????error?=?temp_error;
???????????mv_x?=?x/accuracy-lx;
???????????mv_y?=?y/accuracy-ly;
???????????Predict_Img?=?TargetBlock;
??????end
????end
??end

?屬性????????????大小?????日期????時間???名稱
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?????文件?????304182??2009-05-13?20:26??HBMA\00.bmp

?????文件?????304182??2009-05-13?20:26??HBMA\01.bmp

?????文件???????1841??2009-05-25?20:12??HBMA\EBMA.m

?????文件???????8073??2009-05-26?17:06??HBMA\HBMA.m

?????文件???????3479??2009-05-15?14:12??HBMA\MEBMA.m

?????文件???????6417??2009-05-15?14:12??HBMA\Motion_Estimation_2D.m

?????文件???????1684??2009-05-15?14:13??HBMA\run_MEBMA.m

?????文件????????302??2009-05-26?17:05??HBMA\run_results.m

?????目錄??????????0??2009-06-17?22:42??HBMA

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???????????????630160????????????????????9