X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=segmentation%2FclitkExtractLymphStationsFilter.txx;h=98768b278bfdaf105662efb118684db4d5c2713d;hb=7f7c290c75d4917446f8751856ae7d450f58a6f0;hp=aab78d85c01730c9778c4be1cf81d99c28726728;hpb=6e16222234a90c6079a8f4696c92de7349a496bb;p=clitk.git

diff --git a/segmentation/clitkExtractLymphStationsFilter.txx b/segmentation/clitkExtractLymphStationsFilter.txx
index aab78d8..98768b2 100644
--- a/segmentation/clitkExtractLymphStationsFilter.txx
+++ b/segmentation/clitkExtractLymphStationsFilter.txx
@@ -27,6 +27,7 @@
 #include "clitkAutoCropFilter.h"
 #include "clitkSegmentationUtils.h"
 #include "clitkSliceBySliceRelativePositionFilter.h"
+#include "clitkMeshToBinaryImageFilter.h"
 
 // itk
 #include <itkStatisticsLabelMapFilter.h>
@@ -34,26 +35,42 @@
 #include <itkRegionOfInterestImageFilter.h>
 #include <itkBinaryThresholdImageFilter.h>
 #include <itkImageSliceConstIteratorWithIndex.h>
+#include <itkImageSliceIteratorWithIndex.h>
 #include <itkBinaryThinningImageFilter.h>
 
 // itk ENST
 #include "RelativePositionPropImageFilter.h"
 
+// vtk
+#include <vtkAppendPolyData.h>
+#include <vtkPolyDataWriter.h>
+#include <vtkCellArray.h>
+
 //--------------------------------------------------------------------
 template <class TImageType>
 clitk::ExtractLymphStationsFilter<TImageType>::
 ExtractLymphStationsFilter():
-  clitk::FilterBase(),
-  itk::ImageToImageFilter<TImageType, TImageType>()
+  clitk::StructuresExtractionFilter<ImageType>()
 {
   this->SetNumberOfRequiredInputs(1);
-  SetBackgroundValueMediastinum(0);
-  SetBackgroundValueTrachea(0);
   SetBackgroundValue(0);
   SetForegroundValue(1);
+  ForceSupportsFlagOn();
+  SetSupportLimitsFilename("none");
+  CheckSupportFlagOff();
+
+  // Default values
+  ExtractStation_3P_SetDefaultValues();
+  ExtractStation_2RL_SetDefaultValues();
+  ExtractStation_3A_SetDefaultValues();
+  ExtractStation_1RL_SetDefaultValues();
+  ExtractStation_4RL_SetDefaultValues();
+  ExtractStation_5_SetDefaultValues();
+  ExtractStation_6_SetDefaultValues();
 
-  SetIntermediateSpacing(6);
-  SetFuzzyThreshold1(0.6);
+  // TODO
+  ExtractStation_7_SetDefaultValues();
+  ExtractStation_8_SetDefaultValues();
 }
 //--------------------------------------------------------------------
 
@@ -62,13 +79,80 @@ ExtractLymphStationsFilter():
 template <class TImageType>
 void 
 clitk::ExtractLymphStationsFilter<TImageType>::
-SetInputMediastinumLabelImage(const TImageType * image, ImagePixelType bg) {
-  this->SetNthInput(0, const_cast<TImageType *>(image));
-  m_BackgroundValueMediastinum = bg;
-  SetCarenaZPositionInMM(image->GetOrigin()[2]+image->GetLargestPossibleRegion().GetSize()[2]*image->GetSpacing()[2]);
-  SetMiddleLobeBronchusZPositionInMM(image->GetOrigin()[2]);
-  // DD(m_CarenaZPositionInMM);
-//   DD(m_MiddleLobeBronchusZPositionInMM);
+GenerateOutputInformation() { 
+  // Get inputs
+  this->LoadAFDB();
+  m_Input = dynamic_cast<const ImageType*>(itk::ProcessObject::GetInput(0));
+  m_Mediastinum = this->GetAFDB()->template GetImage <MaskImageType>("Mediastinum");
+
+  // Clean some computer landmarks to force the recomputation
+  // FIXME -> to put elsewhere ?
+  this->GetAFDB()->RemoveTag("AntPostVesselsSeparation");
+
+  // Must I compute the supports ?
+  bool supportsExist = true;
+  if (!GetForceSupportsFlag()) {
+    try {
+      m_ListOfSupports["S1R"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S1R");
+      m_ListOfSupports["S1L"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S1L");
+      m_ListOfSupports["S2R"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S2R");
+      m_ListOfSupports["S2L"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S2L");
+      m_ListOfSupports["S4R"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S4R");
+      m_ListOfSupports["S4L"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S4L");
+      
+      m_ListOfSupports["S3A"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S3A");
+      m_ListOfSupports["S3P"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S3P");
+      m_ListOfSupports["S5"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S5");
+      m_ListOfSupports["S6"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S6");
+      m_ListOfSupports["S7"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S7");
+      m_ListOfSupports["S8"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S8");
+      m_ListOfSupports["S9"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S9");
+      m_ListOfSupports["S10"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S10");
+      m_ListOfSupports["S11"] = this->GetAFDB()->template GetImage<MaskImageType>("Support_S11");
+    } catch(clitk::ExceptionObject o) {
+      supportsExist = false;
+    }
+  }
+
+  if (!supportsExist || GetForceSupportsFlag()) {
+    this->StartNewStep("Supports for stations");
+    this->StartSubStep(); 
+    
+    // FIXME : why should I remove theses tags ???
+    this->GetAFDB()->RemoveTag("CarinaZ");
+    this->GetAFDB()->RemoveTag("ApexOfTheChestZ");
+    this->GetAFDB()->RemoveTag("ApexOfTheChest");
+    this->GetAFDB()->RemoveTag("RightBronchus");
+    this->GetAFDB()->RemoveTag("LeftBronchus");
+    this->GetAFDB()->RemoveTag("SuperiorBorderOfAorticArchZ");
+    this->GetAFDB()->RemoveTag("SuperiorBorderOfAorticArch");
+    this->GetAFDB()->RemoveTag("InferiorBorderOfAorticArchZ");
+    this->GetAFDB()->RemoveTag("InferiorBorderOfAorticArch");
+    ExtractStationSupports();
+    this->StopSubStep();  
+  }
+
+  // Extract Stations
+  ExtractStation_1RL();
+  ExtractStation_2RL();
+  ExtractStation_3P();
+  ExtractStation_3A();
+  ExtractStation_4R();
+  ExtractStation_4L();
+  ExtractStation_5();
+  ExtractStation_6();
+
+  // ---------- todo -----------------------
+
+  // Extract Station8
+  //  ExtractStation_8();
+
+  // Extract Station7
+  //this->StartNewStep("Station 7");
+  //this->StartSubStep();
+  //ExtractStation_7();
+  //this->StopSubStep();
+  
 }
 //--------------------------------------------------------------------
 
@@ -77,29 +161,174 @@ SetInputMediastinumLabelImage(const TImageType * image, ImagePixelType bg) {
 template <class TImageType>
 void 
 clitk::ExtractLymphStationsFilter<TImageType>::
-SetInputTracheaLabelImage(const TImageType * image, ImagePixelType bg) {
-  this->SetNthInput(1, const_cast<TImageType *>(image));
-  m_BackgroundValueTrachea = bg;
+GenerateInputRequestedRegion() {
+  //DD("GenerateInputRequestedRegion (nothing?)");
 }
 //--------------------------------------------------------------------
 
 
 //--------------------------------------------------------------------
 template <class TImageType>
-template<class ArgsInfoType>
 void 
 clitk::ExtractLymphStationsFilter<TImageType>::
-SetArgsInfo(ArgsInfoType mArgsInfo)
+GenerateData() {
+  // Final Step -> graft output (if SetNthOutput => redo)
+  // this->GraftOutput(m_ListOfStations["8"]);
+}
+//--------------------------------------------------------------------
+  
+
+//--------------------------------------------------------------------
+template <class TImageType>
+bool 
+clitk::ExtractLymphStationsFilter<TImageType>::
+CheckForStation(std::string station) 
 {
-  SetVerboseOption_GGO(mArgsInfo);
-  SetVerboseStep_GGO(mArgsInfo);
-  SetWriteStep_GGO(mArgsInfo);
-  SetVerboseWarningOff_GGO(mArgsInfo);
-  SetCarenaZPositionInMM_GGO(mArgsInfo);
-  SetMiddleLobeBronchusZPositionInMM_GGO(mArgsInfo);
-  SetIntermediateSpacing_GGO(mArgsInfo);
-  SetFuzzyThreshold1_GGO(mArgsInfo);
-  //SetBackgroundValueMediastinum_GGO(mArgsInfo);
+  // Compute Station name
+  std::string s = "Station"+station;
+  
+
+  // Define the starting support 
+  // if (GetComputeStation(station)) {
+  //   std::cout << "Station " << station << " already exists, but re-computation forced." << std::endl;
+  // }
+  if (GetComputeStation(station)) {
+    m_Working_Support = m_Mediastinum = this->GetAFDB()->template GetImage<MaskImageType>("Mediastinum", true);
+    return true;
+  }
+  else return false;
+  // else {
+  //   std::cout << "Station " << station << " found. I used it" << std::endl;
+  //   return false;
+  // }
+
+  // Check if station already exist in DB
+  
+  // FIXME -> do nothing if not on the command line. Is it what I want ?
+  //bool found = false;
+  if (this->GetAFDB()->TagExist(s)) {
+    m_ListOfStations[station] = this->GetAFDB()->template GetImage<MaskImageType>(s);
+    //found = true;
+  }
+
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class TImageType>
+bool
+clitk::ExtractLymphStationsFilter<TImageType>::
+GetComputeStation(std::string station) 
+{
+  return (m_ComputeStationMap.find(station) != m_ComputeStationMap.end());
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class TImageType>
+void
+clitk::ExtractLymphStationsFilter<TImageType>::
+AddComputeStation(std::string station) 
+{
+  m_ComputeStationMap[station] = true;
+}
+//--------------------------------------------------------------------
+
+
+
+//--------------------------------------------------------------------
+template<class PointType>
+class comparePointsX {
+public:
+  bool operator() (PointType i, PointType j) { return (i[0]<j[0]); }
+};
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<class PairType>
+class comparePointsWithAngle {
+public:
+  bool operator() (PairType i, PairType j) { return (i.second < j.second); } 
+};
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<int Dim>
+void HypercubeCorners(std::vector<itk::Point<double, Dim> > & out) {
+  std::vector<itk::Point<double, Dim-1> > previous;
+  HypercubeCorners<Dim-1>(previous);
+  out.resize(previous.size()*2);
+  for(unsigned int i=0; i<out.size(); i++) {
+    itk::Point<double, Dim> p;
+    if (i<previous.size()) p[0] = 0; 
+    else p[0] = 1;
+    for(int j=0; j<Dim-1; j++) 
+      {
+        p[j+1] = previous[i%previous.size()][j];
+      }
+    out[i] = p;
+  }
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<>
+void HypercubeCorners<1>(std::vector<itk::Point<double, 1> > & out) {
+  out.resize(2);
+  out[0][0] = 0;
+  out[1][0] = 1;
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<class ImageType>
+void ComputeImageBoundariesCoordinates(typename ImageType::Pointer image, 
+                                       std::vector<typename ImageType::PointType> & bounds) 
+{
+  // Get image max/min coordinates
+  const unsigned int dim=ImageType::ImageDimension;
+  typedef typename ImageType::PointType PointType;
+  typedef typename ImageType::IndexType IndexType;
+  PointType min_c, max_c;
+  IndexType min_i, max_i;
+  min_i = image->GetLargestPossibleRegion().GetIndex();
+  for(unsigned int i=0; i<dim; i++)
+    max_i[i] = image->GetLargestPossibleRegion().GetSize()[i] + min_i[i];
+  image->TransformIndexToPhysicalPoint(min_i, min_c);
+  image->TransformIndexToPhysicalPoint(max_i, max_c);
+  
+  // Get corners coordinates
+  HypercubeCorners<ImageType::ImageDimension>(bounds);
+  for(unsigned int i=0; i<bounds.size(); i++) {
+    for(unsigned int j=0; j<dim; j++) {
+      if (bounds[i][j] == 0) bounds[i][j] = min_c[j];
+      if (bounds[i][j] == 1) bounds[i][j] = max_c[j];
+    }
+  }
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class ImageType>
+void 
+clitk::ExtractLymphStationsFilter<ImageType>::
+Remove_Structures(std::string station, std::string s)
+{
+  try {
+    this->StartNewStep("[Station"+station+"] Remove "+s);  
+    MaskImagePointer Structure = this->GetAFDB()->template GetImage<MaskImageType>(s);
+    clitk::AndNot<MaskImageType>(m_Working_Support, Structure, GetBackgroundValue());
+  }
+  catch(clitk::ExceptionObject e) {
+    std::cout << s << " not found, skip." << std::endl;
+  }
 }
 //--------------------------------------------------------------------
 
@@ -108,193 +337,1142 @@ SetArgsInfo(ArgsInfoType mArgsInfo)
 template <class TImageType>
 void 
 clitk::ExtractLymphStationsFilter<TImageType>::
-GenerateOutputInformation() { 
-  //  Superclass::GenerateOutputInformation();
+SetFuzzyThreshold(std::string station, std::string tag, double value)
+{
+  m_FuzzyThreshold[station][tag] = value;
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class TImageType>
+void 
+clitk::ExtractLymphStationsFilter<TImageType>::
+SetThreshold(std::string station, std::string tag, double value)
+{
+  m_Threshold[station][tag] = value;
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class TImageType>
+double 
+clitk::ExtractLymphStationsFilter<TImageType>::
+GetFuzzyThreshold(std::string station, std::string tag)
+{
+  if (m_FuzzyThreshold.find(station) == m_FuzzyThreshold.end()) {
+    clitkExceptionMacro("Could not find options for station "+station+" in the list (while searching for tag "+tag+").");
+    return 0.0;
+  }
+
+  if (m_FuzzyThreshold[station].find(tag) == m_FuzzyThreshold[station].end()) {
+    clitkExceptionMacro("Could not find options "+tag+" in the list of FuzzyThreshold for station "+station+".");
+    return 0.0;
+  }
+  
+  return m_FuzzyThreshold[station][tag]; 
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class TImageType>
+double 
+clitk::ExtractLymphStationsFilter<TImageType>::
+GetThreshold(std::string station, std::string tag)
+{
+  if (m_Threshold.find(station) == m_Threshold.end()) {
+    clitkExceptionMacro("Could not find options for station "+station+" in the list (while searching for tag "+tag+").");
+    return 0.0;
+  }
+
+  if (m_Threshold[station].find(tag) == m_Threshold[station].end()) {
+    clitkExceptionMacro("Could not find options "+tag+" in the list of Threshold for station "+station+".");
+    return 0.0;
+  }
+  
+  return m_Threshold[station][tag]; 
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class TImageType>
+void
+clitk::ExtractLymphStationsFilter<TImageType>::
+FindLineForS7S8Separation(MaskImagePointType & A, MaskImagePointType & B)
+{
+  // Create line from A to B with
+  // A = upper border of LLL at left
+  // B = lower border of bronchus intermedius (BI) or RightMiddleLobeBronchus
   
-  // Get input
-  m_mediastinum = dynamic_cast<const TImageType*>(itk::ProcessObject::GetInput(0));
-  m_trachea = dynamic_cast<const TImageType*>(itk::ProcessObject::GetInput(1));
+  try {
+    this->GetAFDB()->GetPoint3D("LineForS7S8Separation_Begin", A); 
+    this->GetAFDB()->GetPoint3D("LineForS7S8Separation_End", B);
+  }
+  catch(clitk::ExceptionObject & o) {
     
-  // ----------------------------------------------------------------
-  // ----------------------------------------------------------------
-  // Superior limit = carena
-  // Inferior limit = origine middle lobe bronchus
-  StartNewStep("Inf/Sup mediastinum limits with carena/bronchus");
-  ImageRegionType region = m_mediastinum->GetLargestPossibleRegion(); DD(region);
-  ImageSizeType size = region.GetSize();
-  ImageIndexType index = region.GetIndex();
-  DD(m_CarenaZPositionInMM);
-  DD(m_MiddleLobeBronchusZPositionInMM);
-  index[2] = floor((m_MiddleLobeBronchusZPositionInMM - m_mediastinum->GetOrigin()[2]) / m_mediastinum->GetSpacing()[2]);
-  size[2] = ceil((m_CarenaZPositionInMM-m_MiddleLobeBronchusZPositionInMM) / m_mediastinum->GetSpacing()[2]);
-  region.SetSize(size);
-  region.SetIndex(index);
-  DD(region);
-  typedef itk::RegionOfInterestImageFilter<ImageType, ImageType> CropFilterType;
-  typename CropFilterType::Pointer cropFilter = CropFilterType::New();
-  cropFilter->SetInput(m_mediastinum);
-  cropFilter->SetRegionOfInterest(region);
-  cropFilter->Update();
-  m_working_image = cropFilter->GetOutput();
-  // Auto Crop (because following rel pos is faster)
-  m_working_image = clitk::AutoCrop<ImageType>(m_working_image, 0); 
-  StopCurrentStep<ImageType>(m_working_image);
-  m_output = m_working_image;
-
-  // ----------------------------------------------------------------
-  // ----------------------------------------------------------------
-  // Separate trachea in two CCL
-  StartNewStep("Separate trachea under carena");
-  // DD(region);
-  ImageRegionType trachea_region = m_trachea->GetLargestPossibleRegion();
-  for(int i=0; i<3; i++) {
-    index[i] = floor(((index[i]*m_mediastinum->GetSpacing()[i])+m_mediastinum->GetOrigin()[i]
-                      -m_trachea->GetOrigin()[i])/m_trachea->GetSpacing()[i]);
-    // DD(index[i]);
-    size[i] = ceil((size[i]*m_mediastinum->GetSpacing()[i])/m_trachea->GetSpacing()[i]);
-    //  DD(size[i]);
-    if (index[i] < 0) { 
-      size[i] += index[i];
-      index[i] = 0;       
-    }
-    if (size[i]+index[i] > (trachea_region.GetSize()[i] + trachea_region.GetIndex()[i])) {
-      size[i] = trachea_region.GetSize()[i] + trachea_region.GetIndex()[i] - index[i];
+    DD("FindLineForS7S8Separation");
+    // Load LeftLowerLobeBronchus and get centroid point
+    MaskImagePointer LeftLowerLobeBronchus = 
+      this->GetAFDB()->template GetImage <MaskImageType>("LeftLowerLobeBronchus");
+    std::vector<MaskImagePointType> c;
+    clitk::ComputeCentroids<MaskImageType>(LeftLowerLobeBronchus, GetBackgroundValue(), c);
+    A = c[1];
+    
+    // Load RightMiddleLobeBronchus and get superior point (not centroid here)
+    MaskImagePointer RightMiddleLobeBronchus = 
+      this->GetAFDB()->template GetImage <MaskImageType>("RightMiddleLobeBronchus");
+    bool b = FindExtremaPointInAGivenDirection<MaskImageType>(RightMiddleLobeBronchus, 
+                                                              GetBackgroundValue(), 
+                                                              2, false, B);
+    if (!b) {
+      clitkExceptionMacro("Error while searching most superior point in RightMiddleLobeBronchus. Abort");
     }
+    
+    // Insert into the DB
+    this->GetAFDB()->SetPoint3D("LineForS7S8Separation_Begin", A);
+    this->GetAFDB()->SetPoint3D("LineForS7S8Separation_End", B);
   }
-  // DD(index);
-  //   DD(size);
-  region.SetIndex(index);
-  region.SetSize(size);  
-  //  typedef itk::RegionOfInterestImageFilter<ImageType, ImageType> CropFilterType;
-  //  typename CropFilterType::Pointer 
-  cropFilter = CropFilterType::New();
- //  m_trachea.Print(std::cout);
-  cropFilter->SetInput(m_trachea);
-  cropFilter->SetRegionOfInterest(region);
-  cropFilter->Update();
-  m_working_trachea = cropFilter->GetOutput();
-
-  // Labelize and consider two main labels
-  m_working_trachea = Labelize<ImageType>(m_working_trachea, 0, true, 1);
-
-  // Detect wich label is at Left
-  typedef itk::ImageSliceConstIteratorWithIndex<ImageType> SliceIteratorType;
-  SliceIteratorType iter(m_working_trachea, m_working_trachea->GetLargestPossibleRegion());
-  iter.SetFirstDirection(0);
-  iter.SetSecondDirection(1);
-  iter.GoToBegin();
-  bool stop = false;
-  ImagePixelType leftLabel;
-  ImagePixelType rightLabel;
-  while (!stop) {
-    if (iter.Get() != m_BackgroundValueTrachea) {
-      //     DD(iter.GetIndex());
-      //       DD((int)iter.Get());
-      leftLabel = iter.Get();
-      stop = true;
-    }
-    ++iter;
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class TImageType>
+double 
+clitk::ExtractLymphStationsFilter<TImageType>::
+FindCarina()
+{
+  double z;
+  try {
+    z = this->GetAFDB()->GetDouble("CarinaZ");
   }
-  if (leftLabel == 1) rightLabel = 2;
-  else rightLabel = 1;
-  DD((int)leftLabel);
-  DD((int)rightLabel);  
+  catch(clitk::ExceptionObject e) {
+    //DD("FindCarinaSlicePosition");
+    // Get Carina
+    MaskImagePointer Carina = this->GetAFDB()->template GetImage<MaskImageType>("Carina");
+    
+    // Get Centroid and Z value
+    std::vector<MaskImagePointType> centroids;
+    clitk::ComputeCentroids<MaskImageType>(Carina, GetBackgroundValue(), centroids);
 
-  // End step
-  StopCurrentStep<ImageType>(m_working_trachea);
+    // We dont need Carina structure from now
+    this->GetAFDB()->template ReleaseImage<MaskImageType>("Carina");
+    
+    // Put inside the AFDB
+    this->GetAFDB()->SetPoint3D("CarinaPoint", centroids[1]);
+    this->GetAFDB()->SetDouble("CarinaZ", centroids[1][2]);
+    this->WriteAFDB();
+    z = centroids[1][2];
+  }
+  return z;
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class TImageType>
+double 
+clitk::ExtractLymphStationsFilter<TImageType>::
+FindApexOfTheChest()
+{
+  double z;
+  try {
+    z = this->GetAFDB()->GetDouble("ApexOfTheChestZ");
+  }
+  catch(clitk::ExceptionObject e) {
+
+    /*
+    //DD("FindApexOfTheChestPosition");
+    MaskImagePointer Lungs = this->GetAFDB()->template GetImage<MaskImageType>("Lungs");
+    MaskImagePointType p;
+    p[0] = p[1] = p[2] =  0.0; // to avoid warning
+    clitk::FindExtremaPointInAGivenDirection<MaskImageType>(Lungs, GetBackgroundValue(), 2, false, p);
+
+    // We dont need Lungs structure from now
+    this->GetAFDB()->template ReleaseImage<MaskImageType>("Lungs");
+    
+    // Put inside the AFDB
+    this->GetAFDB()->SetPoint3D("ApexOfTheChest", p);
+    p[2] -= 5; // We consider 5 mm lower 
+    this->GetAFDB()->SetDouble("ApexOfTheChestZ", p[2]);
+    this->WriteAFDB();
+    z = p[2];
+    */
+    
+    // the superior border becomes the more inferior of the two apices
+    MaskImagePointer RightLung = this->GetAFDB()->template GetImage<MaskImageType>("RightLung");
+    MaskImagePointer LeftLung = this->GetAFDB()->template GetImage<MaskImageType>("LeftLung");
+    MaskImagePointType pr;
+    MaskImagePointType pl;
+    clitk::FindExtremaPointInAGivenDirection<MaskImageType>(RightLung, GetBackgroundValue(), 2, false, pr);
+    clitk::FindExtremaPointInAGivenDirection<MaskImageType>(LeftLung, GetBackgroundValue(), 2, false, pl);
+    // We dont need Lungs structure from now
+    this->GetAFDB()->template ReleaseImage<MaskImageType>("RightLung");
+    this->GetAFDB()->template ReleaseImage<MaskImageType>("LeftLung");
+    // Put inside the AFDB
+    if (pr[2] < pl[2]) z = pr[2];
+    else z = pl[2];
+    this->GetAFDB()->SetDouble("ApexOfTheChestZ", z);
+    this->WriteAFDB();
+  }
+  return z;
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class TImageType>
+void
+clitk::ExtractLymphStationsFilter<TImageType>::
+FindLeftAndRightBronchi()
+{
+  try {
+    m_RightBronchus = this->GetAFDB()->template GetImage <MaskImageType>("RightBronchus");
+    m_LeftBronchus = this->GetAFDB()->template GetImage <MaskImageType>("LeftBronchus");
+  }
+  catch(clitk::ExceptionObject & o) {
+
+    DD("FindLeftAndRightBronchi");
+    // The goal is to separate the trachea inferiorly to the carina into
+    // a Left and Right bronchus.
   
-  //-----------------------------------------------------
-  /*  DD("TEST Skeleton");
-  typedef itk::BinaryThinningImageFilter<ImageType, ImageType> SkeletonFilterType;
-  typename SkeletonFilterType::Pointer skeletonFilter = SkeletonFilterType::New();
-  skeletonFilter->SetInput(m_working_trachea);
-  skeletonFilter->Update();
-  writeImage<ImageType>(skeletonFilter->GetOutput(), "skel.mhd");
-  writeImage<ImageType>(skeletonFilter->GetThinning(), "skel2.mhd");  
-  */
+    // Get the trachea
+    MaskImagePointer Trachea = this->GetAFDB()->template GetImage<MaskImageType>("Trachea");
+
+    // Get the Carina position
+    double m_CarinaZ = FindCarina();
+
+    // Consider only inferiorly to the Carina
+    MaskImagePointer m_Working_Trachea = 
+      clitk::CropImageRemoveGreaterThan<MaskImageType>(Trachea, 2, m_CarinaZ, true, // AutoCrop
+                                                       GetBackgroundValue());
+
+    // Labelize the trachea
+    m_Working_Trachea = Labelize<MaskImageType>(m_Working_Trachea, 0, true, 1);
+
+    // Carina position must at the first slice that separate the two
+    // main bronchus (not superiorly). We thus first check that the
+    // upper slice is composed of at least two labels
+    MaskImagePointer RightBronchus;
+    MaskImagePointer LeftBronchus;
+    typedef itk::ImageSliceIteratorWithIndex<MaskImageType> SliceIteratorType;
+    SliceIteratorType iter(m_Working_Trachea, m_Working_Trachea->GetLargestPossibleRegion());
+    iter.SetFirstDirection(0);
+    iter.SetSecondDirection(1);
+    iter.GoToReverseBegin(); // Start from the end (because image is IS not SI)
+    int maxLabel=0;
+    while (!iter.IsAtReverseEndOfSlice()) {
+      while (!iter.IsAtReverseEndOfLine()) {    
+        if (iter.Get() > maxLabel) maxLabel = iter.Get();
+        --iter;
+      }
+      iter.PreviousLine();
+    }
+    if (maxLabel < 2) {
+      clitkExceptionMacro("First slice from Carina does not seems to seperate the two main bronchus. Abort");
+    }
 
-  //-----------------------------------------------------
-  StartNewStep("Left limits with bronchus (slice by slice)");  
-  // Select LeftLabel (set right label to 0)
-  ImagePointer temp = SetBackground<ImageType, ImageType>(m_working_trachea, m_working_trachea, rightLabel, 0);
-  writeImage<ImageType>(temp, "temp1.mhd");
-
-  typedef clitk::SliceBySliceRelativePositionFilter<ImageType> SliceRelPosFilterType;
-  typename SliceRelPosFilterType::Pointer sliceRelPosFilter = SliceRelPosFilterType::New();
-  sliceRelPosFilter->SetCurrentStepBaseId(this->GetCurrentStepId());
-  sliceRelPosFilter->VerboseStepOn();
-  sliceRelPosFilter->WriteStepOn();
-  sliceRelPosFilter->SetInput(m_working_image);
-  sliceRelPosFilter->SetInputObject(temp);
-  sliceRelPosFilter->SetDirection(2);
-  sliceRelPosFilter->SetFuzzyThreshold(0.5);
-  sliceRelPosFilter->SetOrientationType(SliceRelPosFilterType::RelPosFilterType::RightTo);
-  sliceRelPosFilter->Update();
-  m_working_image = sliceRelPosFilter->GetOutput();
-  writeImage<ImageType>(m_working_image, "afterslicebyslice.mhd");
-
-
-  //-----------------------------------------------------
-  StartNewStep("Right limits with bronchus (slice by slice)");
-  // Select LeftLabel (set right label to 0)
-  temp = SetBackground<ImageType, ImageType>(m_working_trachea, m_working_trachea, leftLabel, 0);
-  writeImage<ImageType>(temp, "temp2.mhd");
-
-  sliceRelPosFilter = SliceRelPosFilterType::New();
-  sliceRelPosFilter->SetCurrentStepBaseId(this->GetCurrentStepId());
-  sliceRelPosFilter->VerboseStepOn();
-  sliceRelPosFilter->WriteStepOn();
-  sliceRelPosFilter->SetInput(m_working_image);
-  sliceRelPosFilter->SetInputObject(temp);
-  sliceRelPosFilter->SetDirection(2);
-  sliceRelPosFilter->SetFuzzyThreshold(0.5);
-  sliceRelPosFilter->SetOrientationType(SliceRelPosFilterType::RelPosFilterType::LeftTo);
-  sliceRelPosFilter->Update();
-  m_working_image = sliceRelPosFilter->GetOutput();
-  writeImage<ImageType>(m_working_image, "afterslicebyslice.mhd");
-
-
-  DD("end");
-  m_output = m_working_image;
-  StopCurrentStep<ImageType>(m_output);
-
-  // Set output image information (required)
-  ImagePointer outputImage = this->GetOutput(0);
-  outputImage->SetRegions(m_working_image->GetLargestPossibleRegion());
-  outputImage->SetOrigin(m_working_image->GetOrigin());
-  outputImage->SetRequestedRegion(m_working_image->GetLargestPossibleRegion());
-  DD("end2");
+    // Compute 3D centroids of both parts to identify the left from the
+    // right bronchus
+    std::vector<ImagePointType> c;
+    clitk::ComputeCentroids<MaskImageType>(m_Working_Trachea, GetBackgroundValue(), c);
+    ImagePointType C1 = c[1];
+    ImagePointType C2 = c[2];
+
+    ImagePixelType rightLabel;
+    ImagePixelType leftLabel;  
+    if (C1[0] < C2[0]) { rightLabel = 1; leftLabel = 2; }
+    else { rightLabel = 2; leftLabel = 1; }
+
+    // Select LeftLabel (set one label to Backgroundvalue)
+    RightBronchus = 
+      clitk::Binarize<MaskImageType>(m_Working_Trachea, rightLabel, rightLabel, 
+                                     GetBackgroundValue(), GetForegroundValue());
+    /*
+      SetBackground<MaskImageType, MaskImageType>(m_Working_Trachea, m_Working_Trachea, 
+      leftLabel, GetBackgroundValue(), false);
+    */
+    LeftBronchus = clitk::Binarize<MaskImageType>(m_Working_Trachea, leftLabel, leftLabel, 
+                                                  GetBackgroundValue(), GetForegroundValue());
+    /*
+      SetBackground<MaskImageType, MaskImageType>(m_Working_Trachea, m_Working_Trachea, 
+      rightLabel, GetBackgroundValue(), false);
+    */
+
+    // Crop images
+    RightBronchus = clitk::AutoCrop<MaskImageType>(RightBronchus, GetBackgroundValue()); 
+    LeftBronchus = clitk::AutoCrop<MaskImageType>(LeftBronchus, GetBackgroundValue()); 
+
+    // Insert int AFDB if need after 
+    this->GetAFDB()->template SetImage <MaskImageType>("RightBronchus", "seg/rightBronchus.mhd", 
+                                                 RightBronchus, true);
+    this->GetAFDB()->template SetImage <MaskImageType>("LeftBronchus", "seg/leftBronchus.mhd", 
+                                                 LeftBronchus, true);
+  }
 }
 //--------------------------------------------------------------------
 
 
 //--------------------------------------------------------------------
 template <class TImageType>
-void 
+double 
 clitk::ExtractLymphStationsFilter<TImageType>::
-GenerateInputRequestedRegion() {
-  DD("GenerateInputRequestedRegion");
-  // Call default
-  Superclass::GenerateInputRequestedRegion();
-  // Following needed because output region can be greater than input (trachea)
-  ImagePointer mediastinum = dynamic_cast<TImageType*>(itk::ProcessObject::GetInput(0));
-  ImagePointer trachea = dynamic_cast<TImageType*>(itk::ProcessObject::GetInput(1));
-  mediastinum->SetRequestedRegion(mediastinum->GetLargestPossibleRegion());
-  trachea->SetRequestedRegion(trachea->GetLargestPossibleRegion());
+FindSuperiorBorderOfAorticArch()
+{
+  double z;
+  try {
+    z = this->GetAFDB()->GetDouble("SuperiorBorderOfAorticArchZ");
+  }
+  catch(clitk::ExceptionObject e) {
+    //    DD("FindSuperiorBorderOfAorticArch");
+    MaskImagePointer Aorta = this->GetAFDB()->template GetImage<MaskImageType>("Aorta");
+    MaskImagePointType p;
+    p[0] = p[1] = p[2] =  0.0; // to avoid warning
+    clitk::FindExtremaPointInAGivenDirection<MaskImageType>(Aorta, GetBackgroundValue(), 2, false, p);
+    p[2] += Aorta->GetSpacing()[2]; // the slice above
+    
+    // We dont need Lungs structure from now
+    this->GetAFDB()->template ReleaseImage<MaskImageType>("Aorta");
+    
+    // Put inside the AFDB
+    this->GetAFDB()->SetPoint3D("SuperiorBorderOfAorticArch", p);
+    this->GetAFDB()->SetDouble("SuperiorBorderOfAorticArchZ", p[2]);
+    this->WriteAFDB();
+    z = p[2];
+  }
+  return z;
 }
 //--------------------------------------------------------------------
 
 
 //--------------------------------------------------------------------
 template <class TImageType>
-void 
+double 
 clitk::ExtractLymphStationsFilter<TImageType>::
-GenerateData() {
-  DD("GenerateData");
-  // Final Step -> graft output (if SetNthOutput => redo)
-  this->GraftOutput(m_output);
+FindInferiorBorderOfAorticArch()
+{
+  double z;
+  try {
+    z = this->GetAFDB()->GetDouble("InferiorBorderOfAorticArchZ");
+  }
+  catch(clitk::ExceptionObject e) {
+    //DD("FindInferiorBorderOfAorticArch");
+    MaskImagePointer Aorta = this->GetAFDB()->template GetImage<MaskImageType>("Aorta");
+    std::vector<MaskSlicePointer> slices;
+    clitk::ExtractSlices<MaskImageType>(Aorta, 2, slices);
+    bool found=false;
+    uint i = slices.size()-1;
+    while (!found) {
+      slices[i] = Labelize<MaskSliceType>(slices[i], 0, false, 10);
+      std::vector<typename MaskSliceType::PointType> c;
+      clitk::ComputeCentroids<MaskSliceType>(slices[i], GetBackgroundValue(), c);
+      if (c.size()>2) {
+        found = true;
+      }
+      else {
+        i--;
+      }
+    }
+    MaskImageIndexType index;
+    index[0] = index[1] = 0.0;
+    index[2] = i+1;
+    MaskImagePointType lower;
+    Aorta->TransformIndexToPhysicalPoint(index, lower);
+    
+    // We dont need Lungs structure from now
+    this->GetAFDB()->template ReleaseImage<MaskImageType>("Aorta");
+    
+    // Put inside the AFDB
+    this->GetAFDB()->SetPoint3D("InferiorBorderOfAorticArch", lower);
+    this->GetAFDB()->SetDouble("InferiorBorderOfAorticArchZ", lower[2]);
+    this->WriteAFDB();
+    z = lower[2];
+  }
+  return z;
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class ImageType>
+typename clitk::ExtractLymphStationsFilter<ImageType>::MaskImagePointer 
+clitk::ExtractLymphStationsFilter<ImageType>::
+FindAntPostVesselsOLD()
+{
+  // -----------------------------------------------------
+  /* Rod says: "The anterior border, as with the Atlas – UM, is
+    posterior to the vessels (right subclavian vein, left
+    brachiocephalic vein, right brachiocephalic vein, left subclavian
+    artery, left common carotid artery and brachiocephalic trunk).
+    These vessels are not included in the nodal station.  The anterior
+    border is drawn to the midpoint of the vessel and an imaginary
+    line joins the middle of these vessels.  Between the vessels,
+    station 2 is in contact with station 3a." */
+
+  // Check if no already done
+  bool found = true;
+  MaskImagePointer binarizedContour;
+  try {
+    binarizedContour = this->GetAFDB()->template GetImage <MaskImageType>("AntPostVesselsSeparation");
+  }
+  catch(clitk::ExceptionObject e) {
+    found = false;
+  }
+  if (found) {
+    return binarizedContour;
+  }
+
+  /* Here, we consider the vessels form a kind of anterior barrier. We
+     link all vessels centroids and remove what is post to it.
+    - select the list of structure
+            vessel1 = BrachioCephalicArtery
+            vessel2 = BrachioCephalicVein (warning several CCL, keep most at Right)
+            vessel3 = CommonCarotidArtery
+            vessel4 = SubclavianArtery
+            other   = Thyroid
+            other   = Aorta 
+     - crop images as needed
+     - slice by slice, choose the CCL and extract centroids
+     - slice by slice, sort according to polar angle wrt Trachea centroid.
+     - slice by slice, link centroids and close contour
+     - remove outside this contour
+     - merge with support 
+  */
+
+  // Read structures
+  MaskImagePointer BrachioCephalicArtery = this->GetAFDB()->template GetImage<MaskImageType>("BrachioCephalicArtery");
+  MaskImagePointer BrachioCephalicVein = this->GetAFDB()->template GetImage<MaskImageType>("BrachioCephalicVein");
+  MaskImagePointer CommonCarotidArtery = this->GetAFDB()->template GetImage<MaskImageType>("CommonCarotidArtery");
+  MaskImagePointer SubclavianArtery = this->GetAFDB()->template GetImage<MaskImageType>("SubclavianArtery");
+  MaskImagePointer Thyroid = this->GetAFDB()->template GetImage<MaskImageType>("Thyroid");
+  MaskImagePointer Aorta = this->GetAFDB()->template GetImage<MaskImageType>("Aorta");
+  MaskImagePointer Trachea = this->GetAFDB()->template GetImage<MaskImageType>("Trachea");
+  
+  // Create a temporay support
+  // From first slice of BrachioCephalicVein to end of 3A
+  MaskImagePointer support = this->GetAFDB()->template GetImage<MaskImageType>("Support_Sup_Carina");
+  MaskImagePointType p;
+  p[0] = p[1] = p[2] =  0.0; // to avoid warning
+  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(BrachioCephalicVein, GetBackgroundValue(), 2, true, p);
+  double inf = p [2];
+  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(this->GetAFDB()->template GetImage<MaskImageType>("Support_S3A"), 
+                                                          GetBackgroundValue(), 2, false, p);
+  double sup = p [2];  
+  support = clitk::CropImageAlongOneAxis<MaskImageType>(support, 2, inf, sup, 
+                                                        false, GetBackgroundValue());
+
+  // Resize all structures like support
+  BrachioCephalicArtery = 
+    clitk::ResizeImageLike<MaskImageType>(BrachioCephalicArtery, support, GetBackgroundValue());
+  CommonCarotidArtery = 
+    clitk::ResizeImageLike<MaskImageType>(CommonCarotidArtery, support, GetBackgroundValue());
+  SubclavianArtery = 
+    clitk::ResizeImageLike<MaskImageType>(SubclavianArtery, support, GetBackgroundValue());
+  Thyroid = 
+    clitk::ResizeImageLike<MaskImageType>(Thyroid, support, GetBackgroundValue());
+  Aorta = 
+    clitk::ResizeImageLike<MaskImageType>(Aorta, support, GetBackgroundValue());
+  BrachioCephalicVein = 
+    clitk::ResizeImageLike<MaskImageType>(BrachioCephalicVein, support, GetBackgroundValue());
+  Trachea = 
+    clitk::ResizeImageLike<MaskImageType>(Trachea, support, GetBackgroundValue());
+
+  // Extract slices
+  std::vector<MaskSlicePointer> slices_BrachioCephalicArtery;
+  clitk::ExtractSlices<MaskImageType>(BrachioCephalicArtery, 2, slices_BrachioCephalicArtery);
+  std::vector<MaskSlicePointer> slices_BrachioCephalicVein;
+  clitk::ExtractSlices<MaskImageType>(BrachioCephalicVein, 2, slices_BrachioCephalicVein);
+  std::vector<MaskSlicePointer> slices_CommonCarotidArtery;
+  clitk::ExtractSlices<MaskImageType>(CommonCarotidArtery, 2, slices_CommonCarotidArtery);
+  std::vector<MaskSlicePointer> slices_SubclavianArtery;
+  clitk::ExtractSlices<MaskImageType>(SubclavianArtery, 2, slices_SubclavianArtery);
+  std::vector<MaskSlicePointer> slices_Thyroid;
+  clitk::ExtractSlices<MaskImageType>(Thyroid, 2, slices_Thyroid);
+  std::vector<MaskSlicePointer> slices_Aorta;
+  clitk::ExtractSlices<MaskImageType>(Aorta, 2, slices_Aorta);
+  std::vector<MaskSlicePointer> slices_Trachea;
+  clitk::ExtractSlices<MaskImageType>(Trachea, 2, slices_Trachea);
+  unsigned int n= slices_BrachioCephalicArtery.size();
+  
+  // Get the boundaries of one slice
+  std::vector<MaskSlicePointType> bounds;
+  ComputeImageBoundariesCoordinates<MaskSliceType>(slices_BrachioCephalicArtery[0], bounds);
+
+  // For all slices, for all structures, find the centroid and build the contour
+  // List of 3D points (for debug)
+  std::vector<MaskImagePointType> p3D;
+
+  vtkSmartPointer<vtkAppendPolyData> append = vtkSmartPointer<vtkAppendPolyData>::New();
+  for(unsigned int i=0; i<n; i++) {
+    // Labelize the slices
+    slices_CommonCarotidArtery[i] = Labelize<MaskSliceType>(slices_CommonCarotidArtery[i], 
+                                                            GetBackgroundValue(), true, 1);
+    slices_SubclavianArtery[i] = Labelize<MaskSliceType>(slices_SubclavianArtery[i], 
+                                                         GetBackgroundValue(), true, 1);
+    slices_BrachioCephalicArtery[i] = Labelize<MaskSliceType>(slices_BrachioCephalicArtery[i], 
+                                                             GetBackgroundValue(), true, 1);
+    slices_BrachioCephalicVein[i] = Labelize<MaskSliceType>(slices_BrachioCephalicVein[i], 
+                                                            GetBackgroundValue(), true, 1);
+    slices_Thyroid[i] = Labelize<MaskSliceType>(slices_Thyroid[i], 
+                                                GetBackgroundValue(), true, 1);
+    slices_Aorta[i] = Labelize<MaskSliceType>(slices_Aorta[i], 
+                                              GetBackgroundValue(), true, 1);
+
+    // Search centroids
+    std::vector<MaskSlicePointType> points2D;
+    std::vector<MaskSlicePointType> centroids1;
+    std::vector<MaskSlicePointType> centroids2;
+    std::vector<MaskSlicePointType> centroids3;
+    std::vector<MaskSlicePointType> centroids4;
+    std::vector<MaskSlicePointType> centroids5;
+    std::vector<MaskSlicePointType> centroids6;
+    ComputeCentroids<MaskSliceType>(slices_CommonCarotidArtery[i], GetBackgroundValue(), centroids1);
+    ComputeCentroids<MaskSliceType>(slices_SubclavianArtery[i], GetBackgroundValue(), centroids2);
+    ComputeCentroids<MaskSliceType>(slices_BrachioCephalicArtery[i], GetBackgroundValue(), centroids3);
+    ComputeCentroids<MaskSliceType>(slices_Thyroid[i], GetBackgroundValue(), centroids4);
+    ComputeCentroids<MaskSliceType>(slices_Aorta[i], GetBackgroundValue(), centroids5);
+    ComputeCentroids<MaskSliceType>(slices_BrachioCephalicVein[i], GetBackgroundValue(), centroids6);
+
+    // BrachioCephalicVein -> when it is separated into two CCL, we
+    // only consider the most at Right one
+    if (centroids6.size() > 2) {
+      if (centroids6[1][0] < centroids6[2][0]) centroids6.erase(centroids6.begin()+2);
+      else centroids6.erase(centroids6.begin()+1);
+    }
+    
+    // BrachioCephalicVein -> when SubclavianArtery has 2 CCL
+    // (BrachioCephalicArtery is divided) -> forget BrachioCephalicVein
+    if ((centroids3.size() ==1) && (centroids2.size() > 2)) {
+      centroids6.clear();
+    }
+
+    for(unsigned int j=1; j<centroids1.size(); j++) points2D.push_back(centroids1[j]);
+    for(unsigned int j=1; j<centroids2.size(); j++) points2D.push_back(centroids2[j]);
+    for(unsigned int j=1; j<centroids3.size(); j++) points2D.push_back(centroids3[j]);
+    for(unsigned int j=1; j<centroids4.size(); j++) points2D.push_back(centroids4[j]);
+    for(unsigned int j=1; j<centroids5.size(); j++) points2D.push_back(centroids5[j]);
+    for(unsigned int j=1; j<centroids6.size(); j++) points2D.push_back(centroids6[j]);
+    
+    // Sort by angle according to trachea centroid and vertical line,
+    // in polar coordinates :
+    // http://en.wikipedia.org/wiki/Polar_coordinate_system
+    std::vector<MaskSlicePointType> centroids_trachea;
+    ComputeCentroids<MaskSliceType>(slices_Trachea[i], GetBackgroundValue(), centroids_trachea);
+    typedef std::pair<MaskSlicePointType, double> PointAngleType;
+    std::vector<PointAngleType> angles;
+    for(unsigned int j=0; j<points2D.size(); j++) {
+      //double r = centroids_trachea[1].EuclideanDistanceTo(points2D[j]);
+      double x = (points2D[j][0]-centroids_trachea[1][0]); // X : Right to Left
+      double y = (centroids_trachea[1][1]-points2D[j][1]); // Y : Post to Ant
+      double angle = 0;
+      if (x>0) angle = atan(y/x);
+      if ((x<0) && (y>=0)) angle = atan(y/x)+M_PI;
+      if ((x<0) && (y<0)) angle = atan(y/x)-M_PI;
+      if (x==0) {
+        if (y>0) angle = M_PI/2.0;
+        if (y<0) angle = -M_PI/2.0;
+        if (y==0) angle = 0;
+      }
+      angle = clitk::rad2deg(angle);
+      // Angle is [-180;180] wrt the X axis. We change the X axis to
+      // be the vertical line, because we want to sort from Right to
+      // Left from Post to Ant.
+      if (angle>0) 
+        angle = (270-angle);
+      if (angle<0) {
+        angle = -angle-90;
+        if (angle<0) angle = 360-angle;
+      }
+      PointAngleType a;
+      a.first = points2D[j];
+      a.second = angle;
+      angles.push_back(a);
+    }
+
+    // Do nothing if less than 2 points --> n
+    if (points2D.size() < 3) { //continue;
+      continue;
+    }
+
+    // Sort points2D according to polar angles
+    std::sort(angles.begin(), angles.end(), comparePointsWithAngle<PointAngleType>());
+    for(unsigned int j=0; j<angles.size(); j++) {
+      points2D[j] = angles[j].first;
+    }
+    //    DDV(points2D, points2D.size());
+
+    /* When vessels are far away, we try to replace the line segment
+       with a curved line that join the two vessels but stay
+       approximately at the same distance from the trachea centroids
+       than the vessels.
+
+       For that: 
+       - let a and c be two successive vessels centroids
+       - id distance(a,c) < threshold, next point
+
+       TODO HERE
+       
+       - compute mid position between two successive points -
+       compute dist to trachea centroid for the 3 pts - if middle too
+       low, add one point
+    */
+    std::vector<MaskSlicePointType> toadd;
+    unsigned int index = 0;
+    double dmax = 5;
+    while (index<points2D.size()-1) {
+      MaskSlicePointType a = points2D[index];
+      MaskSlicePointType c = points2D[index+1];
+
+      double dac = a.EuclideanDistanceTo(c);
+      if (dac>dmax) {
+        
+        MaskSlicePointType b;
+        b[0] = a[0]+(c[0]-a[0])/2.0;
+        b[1] = a[1]+(c[1]-a[1])/2.0;
+        
+        // Compute distance to trachea centroid
+        MaskSlicePointType m = centroids_trachea[1];
+        double da = m.EuclideanDistanceTo(a);
+        double db = m.EuclideanDistanceTo(b);
+        //double dc = m.EuclideanDistanceTo(c);
+        
+        // Mean distance, find point on the line from trachea centroid
+        // to b
+        double alpha = (da+db)/2.0;
+        MaskSlicePointType v;
+        double n = sqrt( pow(b[0]-m[0], 2) + pow(b[1]-m[1], 2));
+        v[0] = (b[0]-m[0])/n;
+        v[1] = (b[1]-m[1])/n;
+        MaskSlicePointType r;
+        r[0] = m[0]+alpha*v[0];
+        r[1] = m[1]+alpha*v[1];
+        points2D.insert(points2D.begin()+index+1, r);
+      }
+      else {
+        index++;
+      }
+    }
+    //    DDV(points2D, points2D.size());
+
+    // Add some points to close the contour 
+    // - H line towards Right
+    MaskSlicePointType p = points2D[0]; 
+    p[0] = bounds[0][0];
+    points2D.insert(points2D.begin(), p);
+    // - corner Right/Post
+    p = bounds[0];
+    points2D.insert(points2D.begin(), p);
+    // - H line towards Left
+    p = points2D.back(); 
+    p[0] = bounds[2][0];
+    points2D.push_back(p);
+    // - corner Right/Post
+    p = bounds[2];
+    points2D.push_back(p);
+    // Close contour with the first point
+    points2D.push_back(points2D[0]);
+    //    DDV(points2D, points2D.size());
+      
+    // Build 3D points from the 2D points
+    std::vector<ImagePointType> points3D;
+    clitk::PointsUtils<MaskImageType>::Convert2DListTo3DList(points2D, i, support, points3D);
+    for(unsigned int x=0; x<points3D.size(); x++) p3D.push_back(points3D[x]);
+
+    // Build the mesh from the contour's points
+    vtkSmartPointer<vtkPolyData> mesh = Build3DMeshFrom2DContour(points3D);
+    append->AddInput(mesh);
+  }
+
+  // DEBUG: write points3D
+  clitk::WriteListOfLandmarks<MaskImageType>(p3D, "vessels-centroids.txt");
+
+  // Build the final 3D mesh form the list 2D mesh
+  append->Update();
+  vtkSmartPointer<vtkPolyData> mesh = append->GetOutput();
+  
+  // Debug, write the mesh
+  /*
+    vtkSmartPointer<vtkPolyDataWriter> w = vtkSmartPointer<vtkPolyDataWriter>::New();
+    w->SetInput(mesh);
+    w->SetFileName("bidon.vtk");
+    w->Write();    
+  */
+
+  // Compute a single binary 3D image from the list of contours
+  clitk::MeshToBinaryImageFilter<MaskImageType>::Pointer filter = 
+    clitk::MeshToBinaryImageFilter<MaskImageType>::New();
+  filter->SetMesh(mesh);
+  filter->SetLikeImage(support);
+  filter->Update();
+  binarizedContour = filter->GetOutput();  
+
+  // Crop
+  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(binarizedContour, GetForegroundValue(), 2, true, p);
+  inf = p[2];
+  DD(p);
+  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(binarizedContour, GetForegroundValue(), 2, false, p);
+  sup = p[2];
+  DD(p);
+  binarizedContour = clitk::CropImageAlongOneAxis<MaskImageType>(binarizedContour, 2, inf, sup, 
+                                                        false, GetBackgroundValue());
+  // Update the AFDB
+  writeImage<MaskImageType>(binarizedContour, "seg/AntPostVesselsSeparation.mha");
+  this->GetAFDB()->SetImageFilename("AntPostVesselsSeparation", "seg/AntPostVesselsSeparation.mha");
+  this->WriteAFDB();
+  return binarizedContour;
+
+  /*
+  // Inverse binary mask if needed. We test a point that we know must be in FG. If it is not, inverse
+  ImagePointType p = p3D[2]; // This is the first centroid of the first slice
+  p[1] += 50; // 50 mm Post from this point must be kept
+  ImageIndexType index;
+  binarizedContour->TransformPhysicalPointToIndex(p, index);
+  bool isInside = (binarizedContour->GetPixel(index) != GetBackgroundValue());
+
+  // remove from support
+  typedef clitk::BooleanOperatorLabelImageFilter<MaskImageType> BoolFilterType;
+  typename BoolFilterType::Pointer boolFilter = BoolFilterType::New(); 
+  boolFilter->InPlaceOn();
+  boolFilter->SetInput1(m_Working_Support);
+  boolFilter->SetInput2(binarizedContour);
+  boolFilter->SetBackgroundValue1(GetBackgroundValue());
+  boolFilter->SetBackgroundValue2(GetBackgroundValue());
+  if (isInside)
+    boolFilter->SetOperationType(BoolFilterType::And);
+  else
+    boolFilter->SetOperationType(BoolFilterType::AndNot);
+  boolFilter->Update();
+  m_Working_Support = boolFilter->GetOutput();
+  */
+
+  // End
+  //StopCurrentStep<MaskImageType>(m_Working_Support);
+  //m_ListOfStations["2R"] = m_Working_Support;
+  //m_ListOfStations["2L"] = m_Working_Support;
 }
 //--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class ImageType>
+typename clitk::ExtractLymphStationsFilter<ImageType>::MaskImagePointer 
+clitk::ExtractLymphStationsFilter<ImageType>::
+FindAntPostVessels2()
+{
+  // -----------------------------------------------------
+  /* Rod says: "The anterior border, as with the Atlas – UM, is
+    posterior to the vessels (right subclavian vein, left
+    brachiocephalic vein, right brachiocephalic vein, left subclavian
+    artery, left common carotid artery and brachiocephalic trunk).
+    These vessels are not included in the nodal station.  The anterior
+    border is drawn to the midpoint of the vessel and an imaginary
+    line joins the middle of these vessels.  Between the vessels,
+    station 2 is in contact with station 3a." */
+
+  // Check if no already done
+  bool found = true;
+  MaskImagePointer binarizedContour;
+  try {
+    binarizedContour = this->GetAFDB()->template GetImage <MaskImageType>("AntPostVesselsSeparation");
+  }
+  catch(clitk::ExceptionObject e) {
+    found = false;
+  }
+  if (found) {
+    return binarizedContour;
+  }
+
+  /* Here, we consider the vessels form a kind of anterior barrier. We
+     link all vessels centroids and remove what is post to it.
+    - select the list of structure
+            vessel1 = BrachioCephalicArtery
+            vessel2 = BrachioCephalicVein (warning several CCL, keep most at Right)
+            vessel3 = CommonCarotidArtery
+            vessel4 = SubclavianArtery
+            other   = Thyroid
+            other   = Aorta 
+     - crop images as needed
+     - slice by slice, choose the CCL and extract centroids
+     - slice by slice, sort according to polar angle wrt Trachea centroid.
+     - slice by slice, link centroids and close contour
+     - remove outside this contour
+     - merge with support 
+  */
+
+  // Read structures
+  std::map<std::string, MaskImagePointer> MapOfStructures;  
+  typedef std::map<std::string, MaskImagePointer>::iterator MapIter;
+  MapOfStructures["BrachioCephalicArtery"] = this->GetAFDB()->template GetImage<MaskImageType>("BrachioCephalicArtery");
+  MapOfStructures["BrachioCephalicVein"] = this->GetAFDB()->template GetImage<MaskImageType>("BrachioCephalicVein");
+  MapOfStructures["CommonCarotidArteryLeft"] = this->GetAFDB()->template GetImage<MaskImageType>("LeftCommonCarotidArtery");
+  MapOfStructures["CommonCarotidArteryRight"] = this->GetAFDB()->template GetImage<MaskImageType>("RightCommonCarotidArtery");
+  MapOfStructures["SubclavianArteryLeft"] = this->GetAFDB()->template GetImage<MaskImageType>("LeftSubclavianArtery");
+  MapOfStructures["SubclavianArteryRight"] = this->GetAFDB()->template GetImage<MaskImageType>("RightSubclavianArtery");
+  MapOfStructures["Thyroid"] = this->GetAFDB()->template GetImage<MaskImageType>("Thyroid");
+  MapOfStructures["Aorta"] = this->GetAFDB()->template GetImage<MaskImageType>("Aorta");
+  MapOfStructures["Trachea"] = this->GetAFDB()->template GetImage<MaskImageType>("Trachea");
+  
+  std::vector<std::string> ListOfStructuresNames;
+
+  // Create a temporay support
+  // From first slice of BrachioCephalicVein to end of 3A or end of 2RL
+  MaskImagePointer support = this->GetAFDB()->template GetImage<MaskImageType>("Support_Sup_Carina");
+  MaskImagePointType p;
+  p[0] = p[1] = p[2] =  0.0; // to avoid warning
+  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(MapOfStructures["BrachioCephalicVein"], 
+                                                          GetBackgroundValue(), 2, true, p);
+  double inf = p[2];
+  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(this->GetAFDB()->template GetImage<MaskImageType>("Support_S3A"), 
+                                                          GetBackgroundValue(), 2, false, p);
+  MaskImagePointType p2;
+  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(this->GetAFDB()->template GetImage<MaskImageType>("Support_S2L"), 
+                                                          GetBackgroundValue(), 2, false, p2);
+  if (p2[2] > p[2]) p = p2;
+
+  double sup = p[2]+support->GetSpacing()[2];//one slice more ?
+  support = clitk::CropImageAlongOneAxis<MaskImageType>(support, 2, inf, sup, 
+                                                        false, GetBackgroundValue());
+
+  // Resize all structures like support
+  for (MapIter it = MapOfStructures.begin(); it != MapOfStructures.end(); ++it) {
+    it->second = clitk::ResizeImageLike<MaskImageType>(it->second, support, GetBackgroundValue());
+  }
+
+  // Extract slices
+  typedef std::vector<MaskSlicePointer> SlicesType;
+  std::map<std::string, SlicesType> MapOfSlices;
+  for (MapIter it = MapOfStructures.begin(); it != MapOfStructures.end(); ++it) {
+    SlicesType s;
+    clitk::ExtractSlices<MaskImageType>(it->second, 2, s);    
+    MapOfSlices[it->first] = s;
+  }
+
+  unsigned int n= MapOfSlices["Trachea"].size();
+  
+  // Get the boundaries of one slice
+  std::vector<MaskSlicePointType> bounds;
+  ComputeImageBoundariesCoordinates<MaskSliceType>(MapOfSlices["Trachea"][0], bounds);
+
+  // LOOP ON SLICES
+  // For all slices, for all structures, find the centroid and build the contour
+  // List of 3D points (for debug)
+  std::vector<MaskImagePointType> p3D;
+  vtkSmartPointer<vtkAppendPolyData> append = vtkSmartPointer<vtkAppendPolyData>::New();
+  for(unsigned int i=0; i<n; i++) {
+    
+    // Labelize the slices
+    for (MapIter it = MapOfStructures.begin(); it != MapOfStructures.end(); ++it) {
+      MaskSlicePointer & s = MapOfSlices[it->first][i];
+      s = clitk::Labelize<MaskSliceType>(s, GetBackgroundValue(), true, 1);
+    }
+
+    // Search centroids
+    std::vector<MaskSlicePointType> points2D;
+    typedef std::vector<MaskSlicePointType> CentroidsType;
+    std::map<std::string, CentroidsType> MapOfCentroids;
+    for (MapIter it = MapOfStructures.begin(); it != MapOfStructures.end(); ++it) {
+      std::string structure = it->first;
+      MaskSlicePointer & s = MapOfSlices[structure][i];
+      CentroidsType c;
+      clitk::ComputeCentroids<MaskSliceType>(s, GetBackgroundValue(), c);
+      MapOfCentroids[structure] = c;
+    }
+
+
+    // BrachioCephalicVein -> when it is separated into two CCL, we
+    // only consider the most at Right one
+    CentroidsType & c = MapOfCentroids["BrachioCephalicVein"];
+    if (c.size() > 2) {
+      if (c[1][0] < c[2][0]) c.erase(c.begin()+2);
+      else c.erase(c.begin()+1);
+    }
+    
+    /*
+    // BrachioCephalicVein -> when SubclavianArtery has 2 CCL
+    // (BrachioCephalicArtery is divided) -> forget BrachioCephalicVein
+    if ((MapOfCentroids["BrachioCephalicArtery"].size() ==1) 
+        && (MapOfCentroids["SubclavianArtery"].size() > 2)) {
+      MapOfCentroids["BrachioCephalicVein"].clear();
+    }
+    */
+    
+    // Add all 2D points
+    for (MapIter it = MapOfStructures.begin(); it != MapOfStructures.end(); ++it) {
+      std::string structure = it->first;
+      if (structure != "Trachea") { // do not add centroid of trachea
+        CentroidsType & c = MapOfCentroids[structure];
+        for(unsigned int j=1; j<c.size(); j++) points2D.push_back(c[j]);
+      }
+    }
+    
+    // Sort by angle according to trachea centroid and vertical line,
+    // in polar coordinates :
+    // http://en.wikipedia.org/wiki/Polar_coordinate_system
+    //    std::vector<MaskSlicePointType> centroids_trachea;
+    //ComputeCentroids<MaskSliceType>(MapOfSlices["Trachea"][i], GetBackgroundValue(), centroids_trachea);
+    CentroidsType centroids_trachea = MapOfCentroids["Trachea"];
+    typedef std::pair<MaskSlicePointType, double> PointAngleType;
+    std::vector<PointAngleType> angles;
+    for(unsigned int j=0; j<points2D.size(); j++) {
+      //double r = centroids_trachea[1].EuclideanDistanceTo(points2D[j]);
+      double x = (points2D[j][0]-centroids_trachea[1][0]); // X : Right to Left
+      double y = (centroids_trachea[1][1]-points2D[j][1]); // Y : Post to Ant
+      double angle = 0;
+      if (x>0) angle = atan(y/x);
+      if ((x<0) && (y>=0)) angle = atan(y/x)+M_PI;
+      if ((x<0) && (y<0)) angle = atan(y/x)-M_PI;
+      if (x==0) {
+        if (y>0) angle = M_PI/2.0;
+        if (y<0) angle = -M_PI/2.0;
+        if (y==0) angle = 0;
+      }
+      angle = clitk::rad2deg(angle);
+      // Angle is [-180;180] wrt the X axis. We change the X axis to
+      // be the vertical line, because we want to sort from Right to
+      // Left from Post to Ant.
+      if (angle>0) 
+        angle = (270-angle);
+      if (angle<0) {
+        angle = -angle-90;
+        if (angle<0) angle = 360-angle;
+      }
+      PointAngleType a;
+      a.first = points2D[j];
+      a.second = angle;
+      angles.push_back(a);
+    }
+
+    // Do nothing if less than 2 points --> n
+    if (points2D.size() < 3) { //continue;
+      continue;
+    }
+
+    // Sort points2D according to polar angles
+    std::sort(angles.begin(), angles.end(), comparePointsWithAngle<PointAngleType>());
+    for(unsigned int j=0; j<angles.size(); j++) {
+      points2D[j] = angles[j].first;
+    }
+    //    DDV(points2D, points2D.size());
+
+    /* When vessels are far away, we try to replace the line segment
+       with a curved line that join the two vessels but stay
+       approximately at the same distance from the trachea centroids
+       than the vessels.
+
+       For that: 
+       - let a and c be two successive vessels centroids
+       - id distance(a,c) < threshold, next point
+
+       TODO HERE
+       
+       - compute mid position between two successive points -
+       compute dist to trachea centroid for the 3 pts - if middle too
+       low, add one point
+    */
+    std::vector<MaskSlicePointType> toadd;
+    unsigned int index = 0;
+    double dmax = 5;
+    while (index<points2D.size()-1) {
+      MaskSlicePointType a = points2D[index];
+      MaskSlicePointType c = points2D[index+1];
+
+      double dac = a.EuclideanDistanceTo(c);
+      if (dac>dmax) {
+        
+        MaskSlicePointType b;
+        b[0] = a[0]+(c[0]-a[0])/2.0;
+        b[1] = a[1]+(c[1]-a[1])/2.0;
+        
+        // Compute distance to trachea centroid
+        MaskSlicePointType m = centroids_trachea[1];
+        double da = m.EuclideanDistanceTo(a);
+        double db = m.EuclideanDistanceTo(b);
+        //double dc = m.EuclideanDistanceTo(c);
+        
+        // Mean distance, find point on the line from trachea centroid
+        // to b
+        double alpha = (da+db)/2.0;
+        MaskSlicePointType v;
+        double n = sqrt( pow(b[0]-m[0], 2) + pow(b[1]-m[1], 2));
+        v[0] = (b[0]-m[0])/n;
+        v[1] = (b[1]-m[1])/n;
+        MaskSlicePointType r;
+        r[0] = m[0]+alpha*v[0];
+        r[1] = m[1]+alpha*v[1];
+        points2D.insert(points2D.begin()+index+1, r);
+      }
+      else {
+        index++;
+      }
+    }
+    //    DDV(points2D, points2D.size());
+
+    // Add some points to close the contour 
+    // - H line towards Right
+    MaskSlicePointType p = points2D[0]; 
+    p[0] = bounds[0][0];
+    points2D.insert(points2D.begin(), p);
+    // - corner Right/Post
+    p = bounds[0];
+    points2D.insert(points2D.begin(), p);
+    // - H line towards Left
+    p = points2D.back(); 
+    p[0] = bounds[2][0];
+    points2D.push_back(p);
+    // - corner Right/Post
+    p = bounds[2];
+    points2D.push_back(p);
+    // Close contour with the first point
+    points2D.push_back(points2D[0]);
+    //    DDV(points2D, points2D.size());
+      
+    // Build 3D points from the 2D points
+    std::vector<ImagePointType> points3D;
+    clitk::PointsUtils<MaskImageType>::Convert2DListTo3DList(points2D, i, support, points3D);
+    for(unsigned int x=0; x<points3D.size(); x++) p3D.push_back(points3D[x]);
+
+    // Build the mesh from the contour's points
+    vtkSmartPointer<vtkPolyData> mesh = Build3DMeshFrom2DContour(points3D);
+    append->AddInput(mesh);
+    // if (i ==n-1) { // last slice
+    //   clitk::PointsUtils<MaskImageType>::Convert2DListTo3DList(points2D, i+1, support, points3D);
+    //   vtkSmartPointer<vtkPolyData> mesh = Build3DMeshFrom2DContour(points3D);
+    //   append->AddInput(mesh);
+    // }
+  }
+
+  // DEBUG: write points3D
+  clitk::WriteListOfLandmarks<MaskImageType>(p3D, "vessels-centroids.txt");
+
+  // Build the final 3D mesh form the list 2D mesh
+  append->Update();
+  vtkSmartPointer<vtkPolyData> mesh = append->GetOutput();
   
+  // Debug, write the mesh
+  /*
+  vtkSmartPointer<vtkPolyDataWriter> w = vtkSmartPointer<vtkPolyDataWriter>::New();
+  w->SetInput(mesh);
+  w->SetFileName("bidon.vtk");
+  w->Write();    
+  */
+
+  // Compute a single binary 3D image from the list of contours
+  clitk::MeshToBinaryImageFilter<MaskImageType>::Pointer filter = 
+    clitk::MeshToBinaryImageFilter<MaskImageType>::New();
+  filter->SetMesh(mesh);
+  filter->SetLikeImage(support);
+  filter->Update();
+  binarizedContour = filter->GetOutput();  
+
+  // Crop
+  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(binarizedContour, 
+                                                          GetForegroundValue(), 2, true, p);
+  inf = p[2];
+  clitk::FindExtremaPointInAGivenDirection<MaskImageType>(binarizedContour, 
+                                                          GetForegroundValue(), 2, false, p);
+  sup = p[2]+binarizedContour->GetSpacing()[2]; // extend to include the last slice
+  binarizedContour = clitk::CropImageAlongOneAxis<MaskImageType>(binarizedContour, 2, inf, sup, 
+                                                        false, GetBackgroundValue());
+
+  // Update the AFDB
+  writeImage<MaskImageType>(binarizedContour, "seg/AntPostVesselsSeparation.mha");
+  this->GetAFDB()->SetImageFilename("AntPostVesselsSeparation", "seg/AntPostVesselsSeparation.mha");
+  this->WriteAFDB();
+  return binarizedContour;
+
+  /*
+  // Inverse binary mask if needed. We test a point that we know must be in FG. If it is not, inverse
+  ImagePointType p = p3D[2]; // This is the first centroid of the first slice
+  p[1] += 50; // 50 mm Post from this point must be kept
+  ImageIndexType index;
+  binarizedContour->TransformPhysicalPointToIndex(p, index);
+  bool isInside = (binarizedContour->GetPixel(index) != GetBackgroundValue());
+
+  // remove from support
+  typedef clitk::BooleanOperatorLabelImageFilter<MaskImageType> BoolFilterType;
+  typename BoolFilterType::Pointer boolFilter = BoolFilterType::New(); 
+  boolFilter->InPlaceOn();
+  boolFilter->SetInput1(m_Working_Support);
+  boolFilter->SetInput2(binarizedContour);
+  boolFilter->SetBackgroundValue1(GetBackgroundValue());
+  boolFilter->SetBackgroundValue2(GetBackgroundValue());
+  if (isInside)
+    boolFilter->SetOperationType(BoolFilterType::And);
+  else
+    boolFilter->SetOperationType(BoolFilterType::AndNot);
+  boolFilter->Update();
+  m_Working_Support = boolFilter->GetOutput();
+  */
+
+  // End
+  //StopCurrentStep<MaskImageType>(m_Working_Support);
+  //m_ListOfStations["2R"] = m_Working_Support;
+  //m_ListOfStations["2L"] = m_Working_Support;
+}
+//--------------------------------------------------------------------
+
+//--------------------------------------------------------------------
+template <class ImageType>
+void
+clitk::ExtractLymphStationsFilter<ImageType>::
+WriteImageSupport(std::string support)
+{
+  writeImage<MaskImageType>(m_ListOfSupports[support], this->GetAFDBPath()+"/"+"seg/Support_"+support+".mha");
+  this->GetAFDB()->SetImageFilename("Support_"+support, "seg/Support_"+support+".mha");
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class ImageType>
+void
+clitk::ExtractLymphStationsFilter<ImageType>::
+WriteImageStation(std::string station)
+{
+  writeImage<MaskImageType>(m_ListOfStations[station], GetAFDB()->GetPath()+"/seg/Station"+station+".mha");
+  GetAFDB()->SetImageFilename("Station"+station, "seg/Station"+station+".mha"); 
+  WriteAFDB();
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template <class ImageType>
+void
+clitk::ExtractLymphStationsFilter<ImageType>::
+ComputeOverlapWithRef(std::string station)
+{
+  if (GetComputeStation(station)) {
+    MaskImagePointer ref = this->GetAFDB()->template GetImage <MaskImageType>("Station"+station+"_Ref");
+    typedef clitk::LabelImageOverlapMeasureFilter<MaskImageType> FilterType;
+    typename FilterType::Pointer filter = FilterType::New();
+    filter->SetInput(0, m_ListOfStations[station]);
+    filter->SetInput(1, ref);
+    filter->Update();
+  }
+}
+//--------------------------------------------------------------------
+
+//--------------------------------------------------------------------
+template <class ImageType>
+void
+clitk::ExtractLymphStationsFilter<ImageType>::
+ReadSupportLimits(std::string filename)
+{
+  m_ListOfSupportLimits.clear();
+  ifstream is;
+  openFileForReading(is, filename);
+  while (is) {
+    skipComment(is);
+    SupportLimitsType s;
+    s.Read(is);
+    if (is) m_ListOfSupportLimits.push_back(s);
+  }
+}
+//--------------------------------------------------------------------
 
 #endif //#define CLITKBOOLEANOPERATORLABELIMAGEFILTER_TXX
+