ffd.h

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/* Copyright (C) 2000-2013 CEA
 *
 * This software and supporting documentation were developed by
 *     bioPICSEL
 *     CEA/DSV/I²BM/MIRCen/LMN, Batiment 61,
 *     18, route du Panorama
 *     92265 Fontenay-aux-Roses
 *     France
 */


#ifndef AIMS_REGISTRATION_FFD_H
#define AIMS_REGISTRATION_FFD_H

#include <aims/data/data.h>                           // AimsData
#include <aims/io/io_g.h>                             // aims::Reader / Writer
#include <aims/math/bspline.h>                        // aims::TabulBSpline
#include <aims/resampling/nearestneighborresampler.h>
#include <aims/resampling/linearresampler.h>
#include <aims/resampling/cubicresampler.h>
#include <aims/resampling/resamplerfactory.h>
#include <soma-io/transformation/transformation.h>    // soma::Transformation
#include <aims/utility/channel.h>
#include <aims/vector/vector.h>                       // Point*
#include <aims/mesh/surface.h>
#include <aims/bucket/bucketMap.h>
#include <aims/fibers/bundles.h>
#include <limits>
#include <string>

class Graph;

namespace aims {

//==========================================================================
  //   FFD TRANSFORMATION
  //==========================================================================

  class FfdTransformation : public soma::Transformation3d
  {
  public:
    FfdTransformation( int dimX = 0, int dimY = 1, int dimZ = 1,
                       float sizeX = 1., float sizeY = 1., float sizeZ = 1. );
    template <typename T>
    FfdTransformation( int dimX, int dimY, int dimZ,
                       const AimsData<T> & test_volume );
    template <typename T>
    FfdTransformation( int dimX, int dimY, int dimZ,
                       const carto::Volume<T> & test_volume );

    FfdTransformation( const FfdTransformation & other );
    FfdTransformation( const AimsData<Point3df> & other );
    FfdTransformation & operator=( const FfdTransformation & other );

    operator const AimsData<Point3df>&() const { return _ctrlPointDelta; }
    operator AimsData<Point3df>&() { return _ctrlPointDelta; }

    bool isIdentity() const CARTO_OVERRIDE { return false; }

    //--- Control Knots ------------------------------------------------------
    Point3df     getCtrlKnot( int nx, int ny, int nz ) const;
    void         updateCtrlKnot( int nx, int ny, int nz, const Point3df & newCtrlKnot );
    void         updateAllCtrlKnot( const AimsData<Point3df> & newCtrlKnotGrid );
    void         updateAllCtrlKnotFromDeformation( const AimsData<Point3df> & newDeformationGrid );

    //--- Modify -------------------------------------------------------------
    void         increaseResolution( const Point3d & addKnots );
    // void         inverseTransform();
    // void         estimateLocalDisplacement( const Point3df & voxelSize);

    //--- Deformation --------------------------------------------------------
    Point3dd     deformation( const Point3dd& p_mm ) const;
    Point3dd     ffdCoord( const Point3dd& p_mm ) const
    { return mmToSplineVox(p_mm); }

    //--- Parameters ---------------------------------------------------------
    int          dimX() const { return _dimx; }
    int          dimY() const { return _dimy; }
    int          dimZ() const { return _dimz; }
    int getSizeX() const { return _dimx; }
    int getSizeY() const { return _dimy; }
    int getSizeZ() const { return _dimz; }
    std::vector<int> getSize() const
    { std::vector<int> s( 3 ); s[0] = _dimx; s[1] = _dimy; s[2] = _dimz;
      return s; }
    float        sizeX() const { return _vsx; }
    float        sizeY() const { return _vsy; }
    float        sizeZ() const { return _vsz; }
    std::vector<float> getVoxelSize() const
    { std::vector<float> v( 3 ); v[0] = _vsx; v[1] = _vsy; v[2] = _vsz;
      return v; }
    bool isFlat( int i ) const
    {
      switch(i)
      {
        case 0:  return _flatx;
        case 1:  return _flaty;
        case 2:  return _flatz;
        default: return false;
      }
    }
    bool isXFlat() const { return _flatx; }
    bool isYFlat() const { return _flaty; }
    bool isZFlat() const { return _flatz; }
    virtual void updateDimensions();

    //--- Debug --------------------------------------------------------------
    void  printControlPointsGrid() const;
    void  writeDebugCtrlKnots( const std::string & filename ) const;
    void  writeDebugDeformations( const std::string & filename,
                                  int dimX, int dimY, int dimZ,
                                  float sizeX, float sizeY, float sizeZ ) const;

    //--- Output -------------------------------------------------------------
    void   write( const std::string & filename ) const;

  protected:
    //--- Protected methods --------------------------------------------------
    Point3dd     splineVoxToMm( const Point3dd& p ) const;
    Point3dd     mmToSplineVox( const Point3dd& p ) const;
    void         updateGridResolution( const AimsData<Point3df> & newGrid );

    virtual Point3dd _deformation( const Point3dd& p_mm ) const = 0;

    AimsData<Point3df>  _ctrlPointDelta;
    int _dimx, _dimy, _dimz;
    float _vsx, _vsy, _vsz;
    bool _flatx, _flaty, _flatz;
  };

  template <typename T>
  inline
  FfdTransformation::FfdTransformation( int dimX, int dimY, int dimZ,
                                        const AimsData<T> & test_volume ):
    _ctrlPointDelta( dimX, dimY, dimZ ),
    _dimx( dimX ), _dimy( dimY ), _dimz( dimZ ),
    _flatx( dimX == 1 ), _flaty( dimY == 1 ), _flatz( dimZ == 1 )
  {
    _ctrlPointDelta = Point3df(0., 0., 0.);
    _ctrlPointDelta.setSizeXYZT(
      _flatx ? test_volume.sizeX() : double(test_volume.dimX() - 1) / double(dimX - 1) * test_volume.sizeX(),
      _flaty ? test_volume.sizeY() : double(test_volume.dimY() - 1) / double(dimY - 1) * test_volume.sizeY(),
      _flatz ? test_volume.sizeZ() : double(test_volume.dimZ() - 1) / double(dimZ - 1) * test_volume.sizeZ()
    );
    updateDimensions();
  }

  template <typename T>
  inline
  FfdTransformation::FfdTransformation( int dimX, int dimY, int dimZ,
                                        const carto::Volume<T> & test_volume ):
    _ctrlPointDelta( dimX, dimY, dimZ ),
    _dimx( dimX ), _dimy( dimY ), _dimz( dimZ ),
    _flatx( dimX == 1 ), _flaty( dimY == 1 ), _flatz( dimZ == 1 )
  {
    _ctrlPointDelta = Point3df(0., 0., 0.);
    std::vector<float> vs = test_volume.getVoxelSize();
    _ctrlPointDelta.setSizeXYZT(
      _flatx ? vs[0] : double(test_volume.getSizeX() - 1) / double(dimX - 1) * vs[0],
      _flaty ? vs[1] : double(test_volume.getSizeY() - 1) / double(dimY - 1) * vs[1],
      _flatz ? vs[2] : double(test_volume.getSizeZ() - 1) / double(dimZ - 1) * vs[2]
    );
    updateDimensions();
  }

  inline Point3dd
  FfdTransformation::splineVoxToMm( const Point3dd & p ) const
  {
    return Point3dd( p[0] * sizeX(),
                     p[1] * sizeY(),
                     p[2] * sizeZ() );
  }

  inline Point3dd
  FfdTransformation::mmToSplineVox( const Point3dd & p ) const
  {
    return Point3dd( p[0] / sizeX(),
                     p[1] / sizeY(),
                     p[2] / sizeZ() );
  }

  //==========================================================================
  //   FFD TRANSFORMATION
  //==========================================================================

  class SplineFfd: public FfdTransformation
  {
   public:
    //--- Constructor --------------------------------------------------------
    SplineFfd( int dimX = 0, int dimY = 1, int dimZ = 1,
                  float sizeX = 1., float sizeY = 1., float sizeZ = 1. );
    template <typename T>
    SplineFfd( int dimX, int dimY, int dimZ,
                  const AimsData<T> & test_volume );
    template <typename T>
    SplineFfd( int dimX, int dimY, int dimZ,
                  const carto::Volume<T> & test_volume );

    SplineFfd( const SplineFfd & other );
    SplineFfd( const AimsData<Point3df> & other );
    SplineFfd & operator=( const SplineFfd & other );

    virtual void updateDimensions();
    //--- Deformation --------------------------------------------------------
    Point3dd     deformation( const Point3dd& p_mm ) const;
    double spline3( double x ) const { return _spline(x); }

  private:
    virtual Point3dd transformDouble( double x, double y, double z ) const;
    virtual Point3dd _deformation( const Point3dd& p_mm ) const
    { return deformation_private(p_mm); };
    Point3dd deformation_private( const Point3dd& p_mm ) const;

    const aims::TabulBSpline _spline;
    std::vector<int> _mirrorcoefvecx;
    std::vector<int> _mirrorcoefvecy;
    std::vector<int> _mirrorcoefvecz;
    int *_mirrorcoefx;
    int *_mirrorcoefy;
    int *_mirrorcoefz;
  };

  template <typename T>
  inline
  SplineFfd::SplineFfd( int dimX, int dimY, int dimZ,
                        const AimsData<T> & test_volume ):
    FfdTransformation( dimX, dimY, dimZ, test_volume ),
    _spline(3, 0)
  {
  }

  template <typename T>
  inline
  SplineFfd::SplineFfd( int dimX, int dimY, int dimZ,
                        const carto::Volume<T> & test_volume ):
    FfdTransformation( dimX, dimY, dimZ, test_volume ),
    _spline(3, 0)
  {
  }


  //==========================================================================
  //   FFD TRILINEAR RESAMPLED TRANSFORMATION
  //==========================================================================

  class TrilinearFfd: public FfdTransformation
  {
   public:
    //--- Constructor --------------------------------------------------------
    TrilinearFfd( int dimX = 0, int dimY = 1, int dimZ = 1,
                  float sizeX = 1., float sizeY = 1., float sizeZ = 1. );
    template <typename T>
    TrilinearFfd( int dimX, int dimY, int dimZ,
                  const AimsData<T> & test_volume );

    TrilinearFfd( const TrilinearFfd & other );
    TrilinearFfd( const AimsData<Point3df> & other );
    TrilinearFfd & operator=( const TrilinearFfd & other );

    //--- Deformation --------------------------------------------------------
    Point3dd deformation( const Point3dd& p_mm ) const;
  private:
    virtual Point3dd transformDouble( double x, double y, double z ) const;
    virtual Point3dd _deformation( const Point3dd& p_mm ) const
    { return deformation_private(p_mm); };
    Point3dd deformation_private( const Point3dd& p_mm ) const;
  };

  template <typename T>
  inline
  TrilinearFfd::TrilinearFfd( int dimX, int dimY, int dimZ,
                              const AimsData<T> & test_volume ):
    FfdTransformation( dimX, dimY, dimZ, test_volume )
  {
  }

//============================================================================
//   FFD READER/WRITER
//============================================================================

  template<>
  class Writer<aims::FfdTransformation> : public Writer<AimsData<Point3df> >
  {
    typedef Writer<AimsData<Point3df> > base;
  public:
    inline Writer(): base() {}
    inline Writer( const std::string& filename,
                   carto::Object options = carto::none() ):
      base( filename, options ) {}
    virtual ~Writer() {}
    virtual bool write( const aims::FfdTransformation & obj,
                        bool ascii = false,
                        const std::string* format = 0 );
  };

} // namespace aims

#endif