| void Impala::Core::VideoSet::ShotSegmenter::Predict | ( | int | PredictFrame | ) | [inline] |
Definition at line 760 of file ShotSegmenter.h.
References Impala::Core::Vector::ElemMin(), mCentered, mFeatures, mFeaturesReversed, mPredictions, mRadius, mScores, mSvm, mSymmetry, mWindowSize, Impala::Core::Training::Svm::Predict(), Impala::Core::Array::Array2dTem< StorT, elemSize, ArithT >::SetValue(), and Impala::Core::Array::Array2dTem< StorT, elemSize, ArithT >::Value().
Referenced by HandleDoneFile(), and HandleNewFrame().
00761 { 00762 int PredictBase = mCentered? PredictFrame-mRadius : PredictFrame-mRadius+1; 00763 int size = mCentered ? mWindowSize + 1 : mWindowSize; 00764 if (PredictBase<0) 00765 { 00766 mPredictions->SetValue(0.0, PredictFrame, 0); 00767 return; 00768 } 00769 00770 //Update the feature vector 00771 for(int i=0;i<size;i++) 00772 { 00773 (*mFeatures)[i]=mScores->Value(PredictBase+i,0); 00774 (*mFeaturesReversed)[size-i-1]=mScores->Value(PredictBase+i,0); 00775 00776 } 00777 #ifndef REPOSITORY_USED // Here comes the deprecated stuff 00778 if (mSvm) 00779 { 00780 double pf = mSvm->Predict(mFeatures); 00781 double pr = mSvm->Predict(mFeaturesReversed); 00782 double p = 0; 00783 00784 if(mSymmetry=="None") 00785 p=pf; 00786 else if(mSymmetry=="Avg") 00787 p=(pr+pf)/2; 00788 else if(mSymmetry=="Or") 00789 p= (pf > pr) ? pf : pr; 00790 else if(mSymmetry=="And") 00791 p= (pf < pr) ? pf : pr; 00792 00793 00794 mPredictions->SetValue(1-p,PredictFrame,0); 00795 } 00796 else 00797 { 00798 #endif // REPOSITORY_USED 00799 Real64 minScore = Vector::ElemMin(*mFeatures); 00800 if (mFeatures->Elem(mCentered ? mRadius : mRadius-1) == minScore) 00801 { 00802 mPredictions->SetValue((4.0-minScore) / 2.0, PredictFrame, 0); 00803 } 00804 else 00805 { 00806 mPredictions->SetValue(0.0, PredictFrame, 0); 00807 } 00808 #ifndef REPOSITORY_USED // Here comes the deprecated stuff 00809 } 00810 #endif // REPOSITORY_USED 00811 }
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