Impala Documentation

double Impala::Core::VideoSet::KfrMotionExtractor::CalcEnergy	(	const int	indexOfTPL,
		int	bWidth,
		int	bHeight,
		BOOL	bNormalized = `TRUE`
	)			`[inline]`

Definition at line 835 of file KfrMotionExtractor.h.

References m_EnergyMap, m_TPLMax, m_TPLMean, m_TPLMin, m_Weight, max, min, and Normalization().

Referenced by ComputeEnergy().

00836     {
00837         double Energy = 0;
00838         for (int i = 0; i < bWidth * bHeight; i ++)
00839             Energy += m_EnergyMap[i] * m_Weight[indexOfTPL][i];
00840 
00841         if (bNormalized){
00842             //normalize the energy between [0,1]
00843             double min = m_TPLMin[indexOfTPL]*bWidth*bHeight;
00844             double max = m_TPLMax[indexOfTPL]*bWidth*bHeight;
00845             Energy = Normalization(Energy,min,max);
00846             
00847         } else {
00848             // Note: this case is OK only if all the video files are with the same size.
00849             //       Or, videos with different (bWidth,bHeight)s can NOT be compared each other.
00850             //
00851             // only adjust according to the mean of the template
00852             Energy = Energy - m_TPLMean[indexOfTPL];
00853         }
00854         return Energy;
00855     }

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