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大小: 413KB文件類(lèi)型: .zip金幣: 2下載: 0 次發(fā)布日期: 2021-06-16
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資源簡(jiǎn)介
用opencv+VS2012實(shí)現(xiàn)的SIFT特征提取與匹配算法,已編譯通過(guò),直接打開(kāi)就能運(yùn)行

代碼片段和文件信息
//?KeyPoint.cpp:?implementation?of?the?CKeyPoint?class.
//
//////////////////////////////////////////////////////////////////////
#include?“stdafx.h“
#include?“TestSIFT.h“
#include?“KeyPoint.h“
#ifdef?_DEBUG
#undef?THIS_FILE
static?char?THIS_FILE[]=__FILE__;
#define?new?DEBUG_NEW
#endif
//////////////////////////////////////////////////////////////////////
//?Construction/Destruction
//////////////////////////////////////////////////////////////////////
CKeyPoint:: CKeyPoint?(IplImage*?gaussImg?double?x?double?y?double?imgScale
double?kpScale?double?orientation)
{
m_gaussImg?=?gaussImg;
m_x?=?x;
m_y?=?y;
m_imgScale?=?imgScale;
m_kpScale?=?kpScale;
m_orientation?=?orientation;
m_featureVec?=?NULL;
}
CKeyPoint::~CKeyPoint()
{
if?(m_featureVec?!=?NULL)
delete?m_featureVec;
}
void?CKeyPoint::CreateVector?(int?xDim?int?yDim?int?oDim)
{
m_xDim?=?xDim;
m_yDim?=?yDim;
m_oDim?=?oDim;
m_featureVec?=?new?double[yDim?*?xDim?*?oDim];
memset?(m_featureVec0sizeof(double)*yDim*xDim*oDim);
}
void?CKeyPoint::FVSet(int?xI?int?yI?int?oI?double?value)
{
//?row?major
m_featureVec[(yI?*?m_xDim?*?m_oDim)?+?(xI?*?m_oDim)?+?oI]?=?value;
}
double?CKeyPoint::FVGet(int?xI?int?yI?int?oI)
{
//?row?major
return?m_featureVec[(yI?*?m_xDim?*?m_oDim)?+?(xI?*?m_oDim)?+?oI];
}
//?Threshhold?and?normalize?feature?vector.
//?Note?that?the?feature?vector?as?a?whole?is?normalized?(Lowe‘s?paper?is
//?a?bit?unclear?at?that?point).
void?CKeyPoint::CapAndNormalizeFV?(double?fvGradHicap)
{
//?Straight?normalization
int?len?=?m_xDim?*?m_yDim?*?m_oDim;
double?norm?=?0.0;
for?(int?i?=?0?;?i? norm?+=?m_featureVec[i]*m_featureVec[i];
norm?=?sqrt?(norm);
if?(norm?==?0.0)
return;
for?(i?=?0?;?i? m_featureVec[i]?/=?norm;
//?Hicap?after?normalization
for?(i?=?0?;?i? if?(m_featureVec[i]?>?fvGradHicap)?
m_featureVec[i]?=?fvGradHicap;
//?Renormalize?again
norm?=?0;
for?(i?=?0?;?i? norm?+=?m_featureVec[i]*m_featureVec[i];
norm?=?sqrt?(norm);
for?(i?=?0?;?i? m_featureVec[i]?/=?norm;
}
?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----
?????目錄???????????0??2015-06-17?22:50??OPENCV_SIFT_特征提取_匹配算法\
?????文件????????2187??2006-04-24?05:57??OPENCV_SIFT_特征提取_匹配算法\KeyPoint.cpp
?????文件????????1171??2006-04-24?05:01??OPENCV_SIFT_特征提取_匹配算法\KeyPoint.h
?????文件?????????598??2006-04-24?17:15??OPENCV_SIFT_特征提取_匹配算法\MatchInfo.cpp
?????文件?????????565??2006-04-24?17:14??OPENCV_SIFT_特征提取_匹配算法\MatchInfo.h
?????文件????????1810??2006-04-24?17:28??OPENCV_SIFT_特征提取_匹配算法\MinHeap.cpp
?????文件?????????750??2006-04-24?16:58??OPENCV_SIFT_特征提取_匹配算法\MinHeap.h
?????文件????????3615??2006-04-04?16:20??OPENCV_SIFT_特征提取_匹配算法\ReadMe.txt
?????文件????????2276??2006-04-25?22:20??OPENCV_SIFT_特征提取_匹配算法\SIFT.cpp
?????文件????????1693??2006-04-25?22:08??OPENCV_SIFT_特征提取_匹配算法\SIFT.h
?????文件???????30737??2006-04-25?21:53??OPENCV_SIFT_特征提取_匹配算法\ScaleSpace.cpp
?????文件????????2354??2006-04-25?21:53??OPENCV_SIFT_特征提取_匹配算法\ScaleSpace.h
?????文件?????????210??2006-04-04?16:20??OPENCV_SIFT_特征提取_匹配算法\StdAfx.cpp
?????文件?????????999??2006-04-04?16:20??OPENCV_SIFT_特征提取_匹配算法\StdAfx.h
?????文件???????20992??2007-12-18?16:21??OPENCV_SIFT_特征提取_匹配算法\TestSIFT.aps
?????文件????????1820??2007-12-18?16:38??OPENCV_SIFT_特征提取_匹配算法\TestSIFT.clw
?????文件????????2058??2006-04-04?16:20??OPENCV_SIFT_特征提取_匹配算法\TestSIFT.cpp
?????文件????????4900??2006-04-24?17:56??OPENCV_SIFT_特征提取_匹配算法\TestSIFT.dsp
?????文件????????1439??2006-04-22?03:50??OPENCV_SIFT_特征提取_匹配算法\TestSIFT.dsw
?????文件????????1346??2006-04-04?16:20??OPENCV_SIFT_特征提取_匹配算法\TestSIFT.h
?????文件?????1139712??2007-12-18?16:52??OPENCV_SIFT_特征提取_匹配算法\TestSIFT.ncb
?????文件???????79360??2007-12-18?16:52??OPENCV_SIFT_特征提取_匹配算法\TestSIFT.opt
?????文件????????1120??2007-12-18?16:22??OPENCV_SIFT_特征提取_匹配算法\TestSIFT.plg
?????文件????????5452??2006-04-24?23:51??OPENCV_SIFT_特征提取_匹配算法\TestSIFT.rc
?????文件???????10820??2006-04-29?05:20??OPENCV_SIFT_特征提取_匹配算法\TestSIFTDlg.cpp
?????文件????????1573??2006-04-25?00:00??OPENCV_SIFT_特征提取_匹配算法\TestSIFTDlg.h
?????目錄???????????0??2015-06-17?22:50??OPENCV_SIFT_特征提取_匹配算法\res\
?????文件????????1078??2006-04-04?16:20??OPENCV_SIFT_特征提取_匹配算法\res\TestSIFT.ico
?????文件?????????400??2006-04-04?16:20??OPENCV_SIFT_特征提取_匹配算法\res\TestSIFT.rc2
?????文件????????3072??2007-12-18?13:04??OPENCV_SIFT_特征提取_匹配算法\res\Thumbs.db
?????文件?????????824??2006-04-24?23:51??OPENCV_SIFT_特征提取_匹配算法\resource.h
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