X-Git-Url: http://git.kpe.io/?p=ctsim.git;a=blobdiff_plain;f=include%2Fbackprojectors.h;h=5e897cd22795ed259d00317ffcf0cc91e0ef4951;hp=ac609daa2d6bd2ee11bb8d3dc17d6a309d511b97;hb=1a050c98763fbbc0662731b0b76953acede6f5d7;hpb=286d655a25df2668bd65ad365676c6ecc94415a1

diff --git a/include/backprojectors.h b/include/backprojectors.h
index ac609da..5e897cd 100644
--- a/include/backprojectors.h
+++ b/include/backprojectors.h
@@ -1,15 +1,15 @@
 /*****************************************************************************
 ** FILE IDENTIFICATION
 **
-**	Name:	      backproject.h
+**      Name:         backproject.h
 **      Purpose:      Backprojection classes
-**	Programmer:   Kevin Rosenberg
-**	Date Started: June 2000
+**      Programmer:   Kevin Rosenberg
+**      Date Started: June 2000
 **
 **  This is part of the CTSim program
-**  Copyright (C) 1983-2000 Kevin Rosenberg
+**  Copyright (c) 1983-2001 Kevin Rosenberg
 **
-**  $Id: backprojectors.h,v 1.12 2000/07/22 15:45:33 kevin Exp $
+**  $Id$
 **
 **  This program is free software; you can redistribute it and/or modify
 **  it under the terms of the GNU General Public License (version 2) as
@@ -37,6 +37,7 @@
 class Backproject;
 class ImageFile;
 class Projections;
+struct ReconstructionROI;
 
 class Backprojector
 {
@@ -45,13 +46,12 @@ class Backprojector
   static const int BPROJ_TRIG;
   static const int BPROJ_TABLE;
   static const int BPROJ_DIFF;
-  static const int BPROJ_DIFF2;
-  static const int BPROJ_IDIFF2;
-  static const int BPROJ_IDIFF3;
+  static const int BPROJ_IDIFF;
 
   static const int INTERP_INVALID;
   static const int INTERP_NEAREST;
   static const int INTERP_LINEAR;
+  static const int INTERP_CUBIC;
   static const int INTERP_FREQ_PREINTERPOLATION;
 #if HAVE_BSPLINE_INTERP
   static const int INTERP_BSPLINE;
@@ -60,65 +60,69 @@ class Backprojector
   static const int INTERP_3BSPLINE;
 #endif
 
-  Backprojector (const Projections& proj, ImageFile& im, const char* const backprojName, const char* const interpName, const int interpFactor);
+  Backprojector (const Projections& proj, ImageFile& im, const char* const backprojName,
+    const char* const interpName, const int interpFactor, const ReconstructionROI* pROI);
 
   ~Backprojector ();
-		 
+
   void BackprojectView (const double* const viewData, const double viewAngle);
+  void PostProcessing();
 
   bool fail() const {return m_fail;}
-  const string& failMessage() const {return m_failMessage;}
+  const std::string& failMessage() const {return m_failMessage;}
 
   static const int getBackprojectCount() {return s_iBackprojectCount;}
-  static const char** getBackprojectNameArray() {return s_aszBackprojectName;}
-  static const char** getBackprojectTitleArray() {return s_aszBackprojectTitle;}
+  static const char* const* getBackprojectNameArray() {return s_aszBackprojectName;}
+  static const char* const* getBackprojectTitleArray() {return s_aszBackprojectTitle;}
   static int convertBackprojectNameToID (const char* const bprojName);
   static const char* convertBackprojectIDToName (const int bprojID);
   static const char* convertBackprojectIDToTitle (const int bprojID);
 
   static const int getInterpCount() {return s_iInterpCount;}
-  static const char** getInterpNameArray() {return s_aszInterpName;}
-  static const char** getInterpTitleArray() {return s_aszInterpTitle;}
+  static const char* const * getInterpNameArray() {return s_aszInterpName;}
+  static const char* const * getInterpTitleArray() {return s_aszInterpTitle;}
   static int convertInterpNameToID (const char* const interpName);
   static const char* convertInterpIDToName (const int interpID);
   static const char* convertInterpIDToTitle (const int interpID);
 
 
  private:
-  string m_nameBackproject;
-  string m_nameInterpolation;
+  std::string m_nameBackproject;
+  std::string m_nameInterpolation;
   int m_idBackproject;
   int m_idInterpolation;
   Backproject* m_pBackprojectImplem;
   bool m_fail;
-  string m_failMessage;
+  std::string m_failMessage;
 
-  static const char* s_aszBackprojectName[];
-  static const char* s_aszBackprojectTitle[];
+  static const char* const s_aszBackprojectName[];
+  static const char* const s_aszBackprojectTitle[];
   static const int s_iBackprojectCount;
 
-  static const char* s_aszInterpName[];
-  static const char* s_aszInterpTitle[];
+  static const char* const s_aszInterpName[];
+  static const char* const s_aszInterpTitle[];
   static const int s_iInterpCount;
 
-  bool initBackprojector (const Projections& proj, ImageFile& im, const char* const backprojName, const char* const interpName, const int interpFactor);
+  bool initBackprojector (const Projections& proj, ImageFile& im, const char* const backprojName,
+    const char* const interpName, const int interpFactor, const ReconstructionROI* pROI);
 };
 
 
 class Backproject
 {
  public:
-    Backproject (const Projections& proj, ImageFile& im, int interpID, const int interpFactor);
+    Backproject (const Projections& proj, ImageFile& im, int interpID, const int interpFactor,
+      const ReconstructionROI* pROI);
 
     virtual ~Backproject ();
 
-    virtual void BackprojectView (const double* const viewData, const double viewAngle) {};
+    virtual void BackprojectView (const double* const viewData, const double viewAngle) = 0;
+    virtual void PostProcessing (); // call after backprojecting all views
 
  protected:
     void ScaleImageByRotIncrement ();
-    void Backproject::errorIndexOutsideDetector (int ix, int iy, double theta, double r, double phi, double L, int ni);
-    void Backproject::errorIndexOutsideDetector (int ix, int iy, double theta, double L, int ni);
-
+    void errorIndexOutsideDetector (int ix, int iy, double theta, double r, double phi, double L, int ni);
+    void errorIndexOutsideDetector (int ix, int iy, double theta, double L, int ni);
     const Projections& proj;
     ImageFile& im;
     int interpType;
@@ -126,12 +130,15 @@ class Backproject
     kint32 nx;
     kint32 ny;
     double detInc;
-    double rotInc;
-    int iDetCenter;      	// index refering to L=0 projection 
+    double rotScale;
+    int iDetCenter;             // index refering to L=0 projection
     int nDet;
     double xMin, xMax, yMin, yMax;     // Retangular coords of phantom
-    double xInc, yInc;	// size of cells
+    double xInc, yInc;  // size of cells
     int m_interpFactor;
+    double m_dFocalLength;
+    double m_dSourceDetectorLength;
+    bool m_bPostProcessingDone;
 
  private:
     Backproject (const Backproject& rhs);
@@ -142,23 +149,24 @@ class Backproject
 class BackprojectTrig : public Backproject
 {
  public:
-  BackprojectTrig (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
-      : Backproject::Backproject (proj, im, interpType, interpFactor)
+  BackprojectTrig (const Projections& proj, ImageFile& im, int interpID, const int interpFactor, const ReconstructionROI* pROI)
+      : Backproject (proj, im, interpID, interpFactor, pROI)
       {}
 
-  void BackprojectView (const double* const t, double view_angle);
+  void BackprojectView (const double* const t, const double view_angle);
 };
 
 
 class BackprojectTable : public Backproject
 {
  public:
-  BackprojectTable (const Projections& proj, ImageFile& im, int interpID, const int interpFactor);
-  ~BackprojectTable ();
+  BackprojectTable (const Projections& proj, ImageFile& im, int interpID, const int interpFactor, const ReconstructionROI* pROI);
+  virtual ~BackprojectTable ();
 
-  void BackprojectView (const double* const t, double view_angle);
+  virtual void BackprojectView (const double* const t, const double view_angle);
+  virtual void PostProcessing (); // call after backprojecting all views
 
- private:
+ protected:
   Array2d<kfloat64> arrayR;
   Array2d<kfloat64> arrayPhi;
   kfloat64** r;
@@ -169,10 +177,11 @@ class BackprojectTable : public Backproject
 class BackprojectDiff : public Backproject
 {
  public:
-  BackprojectDiff (const Projections& proj, ImageFile& im, int interpID, const int interpFactor);
+  BackprojectDiff (const Projections& proj, ImageFile& im, int interpID, const int interpFactor, const ReconstructionROI* pROI);
   ~BackprojectDiff ();
 
-  void BackprojectView (const double* const t, double view_angle);
+  virtual void BackprojectView (const double* const t, const double view_angle);
+  virtual void PostProcessing (); // call after backprojecting all views
 
  protected:
   double start_r;
@@ -180,35 +189,41 @@ class BackprojectDiff : public Backproject
   double im_xinc, im_yinc;
 };
 
-class BackprojectDiff2 : public BackprojectDiff
+
+class BackprojectIntDiff : public BackprojectDiff
 {
  public:
-  BackprojectDiff2 (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
-    :  BackprojectDiff::BackprojectDiff (proj, im, interpType, interpFactor)
+  BackprojectIntDiff (const Projections& proj, ImageFile& im, int interpID, const int interpFactor, const ReconstructionROI* pROI)
+    :  BackprojectDiff (proj, im, interpID, interpFactor, pROI)
     {}
 
-  void BackprojectView (const double* const t, double view_angle);
+  void BackprojectView (const double* const t, const double view_angle);
 };
 
-class BackprojectIntDiff2 : public BackprojectDiff
+class BackprojectEquilinear : public BackprojectTable
 {
  public:
-  BackprojectIntDiff2 (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
-    :  BackprojectDiff::BackprojectDiff (proj, im, interpType, interpFactor)
-    {}
-  
-  void BackprojectView (const double* const t, double view_angle);
-};
+  BackprojectEquilinear (const Projections& proj, ImageFile& im, int interpID, const int interpFactor,  const ReconstructionROI* pROI)
+      : BackprojectTable (proj, im, interpID, interpFactor, pROI)
+      {}
 
+  void BackprojectView (const double* const t, const double view_angle);
 
-class BackprojectIntDiff3 : public BackprojectDiff
+  virtual ~BackprojectEquilinear()
+      {}
+};
+
+class BackprojectEquiangular : public BackprojectTable
 {
  public:
-  BackprojectIntDiff3 (const Projections& proj, ImageFile& im, int interpType, const int interpFactor)
-    :  BackprojectDiff::BackprojectDiff (proj, im, interpType, interpFactor)
-    {}
-  
-  void BackprojectView (const double* const t, double view_angle);
+  BackprojectEquiangular (const Projections& proj, ImageFile& im, int interpID, const int interpFactor,  const ReconstructionROI* pROI)
+      : BackprojectTable (proj, im, interpID, interpFactor, pROI)
+      {}
+
+  void BackprojectView (const double* const t, const double view_angle);
+
+  virtual ~BackprojectEquiangular()
+      {}
 };