| void Impala::Core::KeyPoint::Sift::Init | ( | ) | [inline] |
Definition at line 49 of file Sift.h.
References BuildGaussians(), Impala::Core::KeyPoint::DOG, Impala::Core::KeyPoint::Detector::FindKeyPoints(), Impala::CmdOptions::GetInstance(), Impala::CmdOptions::GetInt(), ILOG_INFO, Impala::Core::Array::MakeGaussian2d(), mDescriptorBinCount, mDescriptorLength, mDescriptorRegDiv, mDescriptorWindowSize, mDetector, mDetectorType, mGaussian, mGaussians, mGradAng, mGradMag, mKeyPoints, mLevelCnt, mOctaveCnt, mOctaves, and mSrc.
Referenced by Sift().
00049 { 00050 CmdOptions& options = CmdOptions::GetInstance(); 00051 //The window size taken for the desccriptor 00052 mDescriptorWindowSize=options.GetInt("dws",16); 00053 //Default is 8 bins from every region 00054 mDescriptorBinCount=options.GetInt("dbc",8); 00055 //Default is a 4x4 region 00056 mDescriptorRegDiv=options.GetInt("drv",4); 00057 ILOG_INFO("Descriptor Window Size : "<<mDescriptorWindowSize); 00058 ILOG_INFO("Descriptor Histogram Bin Count : "<<mDescriptorBinCount); 00059 00060 mDescriptorLength = mDescriptorBinCount * 00061 mDescriptorRegDiv * mDescriptorRegDiv; 00062 00063 00064 mOctaves = new Impala::Core::Array::Octaves(mSrc,-1,3); 00065 switch(mDetectorType){ 00066 case DOG: 00067 mDetector = new DoG(mOctaves); 00068 } 00069 mDetector->FindKeyPoints(); 00070 mLevelCnt = mOctaves->GetLevelCount(); 00071 mOctaveCnt = mOctaves->GetOctaveCount(); 00072 00073 00074 mGradMag = new Array2dScalarReal64*[mOctaveCnt*mLevelCnt]; 00075 mGradAng = new Array2dScalarReal64*[mOctaveCnt*mLevelCnt]; 00076 mGaussians = new Array2dScalarReal64*[mOctaveCnt*mLevelCnt]; 00077 for(int i=0;i<mOctaveCnt*mLevelCnt;i++){ 00078 mGaussians[i] =0; 00079 mGradMag[i] = 0; 00080 mGradAng[i] = 0; 00081 } 00082 00083 BuildGaussians(); 00084 mGaussian = MakeGaussian2d( 1.5 * mDescriptorWindowSize, 00085 1.5 * mDescriptorWindowSize,0,0,3); 00086 mKeyPoints=new KeyPointTableType(0); 00087 00088 }
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