X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=lib%2Ffpa%2FCommon%2FPeakDetector.cxx;fp=lib%2Ffpa%2FCommon%2FPeakDetector.cxx;h=0a53e1e38d8bd0ea14d9ab499db58123b68b9492;hb=bd89a1af0c14ed2ac0afeca923103de54283cbaf;hp=0000000000000000000000000000000000000000;hpb=a8ac405fe1422bc0792a810f7f0693096a22c20e;p=FrontAlgorithms.git

diff --git a/lib/fpa/Common/PeakDetector.cxx b/lib/fpa/Common/PeakDetector.cxx
new file mode 100644
index 0000000..0a53e1e
--- /dev/null
+++ b/lib/fpa/Common/PeakDetector.cxx
@@ -0,0 +1,187 @@
+// =========================================================================
+// @author Leonardo Florez Valencia
+// @email florez-l@javeriana.edu.co
+// =========================================================================
+#include <fpa/Common/PeakDetector.h>
+#include <cmath>
+
+// -------------------------------------------------------------------------
+fpa::Common::PeakDetector::
+PeakDetector( )
+  : m_K( 3 ),
+    m_T( 3.5 ),
+    m_I( 0.5 )
+{
+}
+
+// -------------------------------------------------------------------------
+fpa::Common::PeakDetector::
+~PeakDetector( )
+{
+}
+
+// -------------------------------------------------------------------------
+unsigned long fpa::Common::PeakDetector::
+GetKernelSize( ) const
+{
+  return( this->m_K );
+}
+
+// -------------------------------------------------------------------------
+double fpa::Common::PeakDetector::
+GetThreshold( ) const
+{
+  return( this->m_T );
+}
+
+// -------------------------------------------------------------------------
+double fpa::Common::PeakDetector::
+GetInfluence( ) const
+{
+  return( this->m_I );
+}
+
+// -------------------------------------------------------------------------
+void fpa::Common::PeakDetector::
+SetKernelSize( unsigned long k )
+{
+  this->m_K = k;
+  this->Clear( );
+}
+
+// -------------------------------------------------------------------------
+void fpa::Common::PeakDetector::
+SetThreshold( double t )
+{
+  this->m_T = t;
+  this->Clear( );
+}
+
+// -------------------------------------------------------------------------
+void fpa::Common::PeakDetector::
+SetInfluence( double i )
+{
+  this->m_I = i;
+  this->Clear( );
+}
+
+// -------------------------------------------------------------------------
+void fpa::Common::PeakDetector::
+Clear( )
+{
+  this->m_X.clear( );
+  this->m_Y.clear( );
+  this->m_YF.clear( );
+  this->m_Avg.clear( );
+  this->m_STD.clear( );
+  this->m_Peaks.clear( );
+  this->m_MeanAndVar.Clear( );
+}
+
+// -------------------------------------------------------------------------
+const std::vector< double >& fpa::Common::PeakDetector::
+GetXValues( ) const
+{
+  return( this->m_X );
+}
+
+// -------------------------------------------------------------------------
+const std::vector< double >& fpa::Common::PeakDetector::
+GetYValues( ) const
+{
+  return( this->m_Y );
+}
+
+// -------------------------------------------------------------------------
+const std::vector< double >& fpa::Common::PeakDetector::
+GetFilteredYValues( ) const
+{
+  return( this->m_YF );
+}
+
+// -------------------------------------------------------------------------
+const std::vector< double >& fpa::Common::PeakDetector::
+GetAverages( ) const
+{
+  return( this->m_Avg );
+}
+
+// -------------------------------------------------------------------------
+const std::vector< double >& fpa::Common::PeakDetector::
+GetDeviations( ) const
+{
+  return( this->m_STD );
+}
+
+// -------------------------------------------------------------------------
+const std::vector< fpa::Common::PeakDetector::TPeak >& fpa::Common::
+PeakDetector::GetPeaks( ) const
+{
+  return( this->m_Peaks );
+}
+
+// -------------------------------------------------------------------------
+unsigned long fpa::Common::PeakDetector::
+GetNumberOfSamples( ) const
+{
+  return( this->m_X.size( ) );
+}
+
+// -------------------------------------------------------------------------
+fpa::Common::PeakDetector::
+TPeak fpa::Common::PeakDetector::
+AddValue( double x, double y )
+{
+  this->m_X.push_back( x );
+  this->m_Y.push_back( y );
+
+  if( this->m_YF.size( ) < this->m_K )
+  {
+    this->m_YF.push_back( y );
+    this->m_Avg.push_back( double( 0 ) );
+    this->m_STD.push_back( double( 0 ) );
+    this->m_Peaks.push_back( Self::NoPeak );
+
+    this->m_MeanAndVar.AddValue( y );
+    if( this->m_YF.size( ) == this->m_K )
+    {
+      this->m_Avg.push_back( this->m_MeanAndVar.GetMean( ) );
+      this->m_STD.push_back( this->m_MeanAndVar.GetDeviation( ) );
+
+    } // fi
+  }
+  else
+  {
+    unsigned long i = this->m_X.size( ) - 1;
+    if(
+      ( std::fabs( y - this->m_Avg[ i - 1 ] ) ) >
+      ( this->m_T * this->m_STD[ i - 1 ] )
+      )
+    {
+      this->m_Peaks.push_back(
+        ( y > this->m_Avg[ i - 1 ] )? Self::PosPeak: Self::NegPeak
+        );
+      this->m_YF.push_back(
+        ( this->m_I * y ) +
+        ( ( double( 1 ) - this->m_I ) * this->m_YF[ i - 1 ] )
+        );
+    }
+    else
+    {
+      this->m_Peaks.push_back( Self::NoPeak );
+      this->m_YF.push_back( y );
+
+    } // fi
+
+    this->m_MeanAndVar.Clear( );
+    unsigned long k = 0;
+    for( unsigned long j = i - this->m_K; j <= i; ++j, ++k )
+      this->m_MeanAndVar.AddValue( this->m_YF[ j ] );
+    this->m_Avg.push_back( this->m_MeanAndVar.GetMean( ) );
+    this->m_STD.push_back( this->m_MeanAndVar.GetDeviation( ) );
+
+  } // fi
+  return( this->m_Peaks.back( ) );
+}
+
+// eof - $RCSfile$