diff --git a/Modules/SurfaceInterpolation/mitkPointCloudScoringFilter.h b/Modules/SurfaceInterpolation/mitkPointCloudScoringFilter.h
index 9aa8fe76c1..29e29aefe4 100644
--- a/Modules/SurfaceInterpolation/mitkPointCloudScoringFilter.h
+++ b/Modules/SurfaceInterpolation/mitkPointCloudScoringFilter.h
@@ -1,64 +1,87 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 #ifndef mitkPointCloudScoringFilter_h_Included
 #define mitkPointCloudScoringFilter_h_Included
 
 #include <MitkSurfaceInterpolationExports.h>
 #include <mitkUnstructuredGridToUnstructuredGridFilter.h>
 #include <mitkUnstructuredGrid.h>
 
 namespace mitk
 {
 
+/**
+ * @brief Scores an UnstructuredGrid as good as one matches to the other.
+ *
+ * The result UnstructureGrid of the filter are the points where the distance to
+ * the closest point of the other UnstructuredGrid is higher than the average
+ * distance from all points to their closest neighbours of the other
+ * UnstructuredGrid.
+ * The second input is the UnstructuredGrid, which you want to score. All Points
+ * of the output UnstructuredGrid are from the second input.
+ */
 class MitkSurfaceInterpolation_EXPORT PointCloudScoringFilter:
     public UnstructuredGridToUnstructuredGridFilter
 {
 
 public:
 
   typedef std::pair<int, double> ScorePair;
 
   mitkClassMacro( PointCloudScoringFilter, UnstructuredGridToUnstructuredGridFilter)
 
   itkFactorylessNewMacro(Self)
   itkCloneMacro(Self)
 
+  /** Number of Points of the scored UnstructuredGrid. These points are far away
+   * from their neighbours */
   itkGetMacro(NumberOfOutpPoints, int)
+
+  /** A vector in which the point IDs and their distance to their neighbours
+   * is stored */
   itkGetMacro(FilteredScores, std::vector< ScorePair >)
 
 protected:
 
+  /** is called by the Update() method */
   virtual void GenerateData();
 
+  /** Defines the output */
   virtual void GenerateOutputInformation();
 
+  /** Constructor */
   PointCloudScoringFilter();
 
+  /** Destructor */
   virtual ~PointCloudScoringFilter();
 
 private:
 
+  /** The output UnstructuredGrid containing the scored points, which are far
+   * aways from their neighbours */
   mitk::UnstructuredGrid::Pointer m_OutpGrid;
 
+  /** The Point IDs and their distance to their neighbours */
   std::vector< ScorePair > m_FilteredScores;
 
+  /** The number of points which are far aways from their neighbours */
   int m_NumberOfOutpPoints;
 
 };
 
 }
 #endif