X-Git-Url: http://git.kpe.io/?p=ctsim.git;a=blobdiff_plain;f=include%2Fbackprojectors.h;h=f34964cf7ec9257c0b37c3b81d262b089450cd41;hp=598c2449ff26ec56edd94fff430e7a7d3bbd5b4c;hb=79b656146b04b1d57d1ac27f9f2e5474e17c4936;hpb=27a474e0622ebb7229fd5705552021f63d8f932d

diff --git a/include/backprojectors.h b/include/backprojectors.h
index 598c244..f34964c 100644
--- a/include/backprojectors.h
+++ b/include/backprojectors.h
@@ -7,9 +7,9 @@
 **	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 1.11 2000/07/20 11:17:31 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
@@ -35,111 +35,110 @@
 
 
 class Backproject;
+class ImageFile;
+class Projections;
+struct ReconstructionROI;
 
 class Backprojector
 {
  public:
-  typedef  enum {
-    BPROJ_INVALID,
-    BPROJ_TRIG,
-    BPROJ_TABLE,
-    BPROJ_DIFF,
-    BPROJ_DIFF2,
-    BPROJ_IDIFF2,
-    BPROJ_IDIFF3
-} BackprojectID;
-
-  typedef enum {
-    INTERP_INVALID,
-    INTERP_NEAREST,      // Nearest neighbor
+  static const int BPROJ_INVALID;
+  static const int BPROJ_TRIG;
+  static const int BPROJ_TABLE;
+  static const int BPROJ_DIFF;
+  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
-    I_BSPLINE,
-    I_1BSPLINE,      // 1st order B-Spline 
-    I_2BSPLINE,
-    I_3BSPLINE,
+  static const int INTERP_BSPLINE;
+  static const int INTERP_1BSPLINE;
+  static const int INTERP_2BSPLINE;
+  static const int INTERP_3BSPLINE;
 #endif
-    INTERP_LINEAR,        // Linear interpolation 
-    INTERP_FREQ_PREINTERPOLATION,
-  } InterpolationID;
-
-  static const char BPROJ_TRIG_STR[];
-  static const char BPROJ_TABLE_STR[];
-  static const char BPROJ_DIFF_STR[];
-  static const char BPROJ_DIFF2_STR[];
-  static const char BPROJ_IDIFF2_STR[];
-  static const char BPROJ_IDIFF3_STR[];
-
-  static const char BPROJ_TRIG_TITLE_STR[];
-  static const char BPROJ_TABLE_TITLE_STR[];
-  static const char BPROJ_DIFF_TITLE_STR[];
-  static const char BPROJ_DIFF2_TITLE_STR[];
-  static const char BPROJ_IDIFF2_TITLE_STR[];
-  static const char BPROJ_IDIFF3_TITLE_STR[];
- 
-  static const char INTERP_NEAREST_STR[];
-  static const char INTERP_LINEAR_STR[];
-  static const char INTERP_BSPLINE_STR[];
-  static const char INTERP_FREQ_PREINTERPOLATION_STR[];
-
-  static const char INTERP_NEAREST_TITLE_STR[];
-  static const char INTERP_LINEAR_TITLE_STR[];
-  static const char INTERP_BSPLINE_TITLE_STR[];
-  static const char INTERP_FREQ_PREINTERPOLATION_TITLE_STR[];
-
-  Backprojector (const Projections& proj, ImageFile& im, const char* const backprojName, const char* const interpName, const int interpFactor);
-
-  ~Backprojector (void);
+
+  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 std::string& failMessage() const {return m_failMessage;}
+
+  static const int getBackprojectCount() {return s_iBackprojectCount;}
+  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* 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);
 
-  bool fail(void) const {return m_fail;}
-  const string& failMessage(void) const {return m_failMessage;}
 
  private:
-  string m_nameBackproject;
-  string m_nameInterpolation;
-  BackprojectID m_idBackproject;
-  InterpolationID m_idInterpolation;
+  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* const s_aszBackprojectName[];
+  static const char* const s_aszBackprojectTitle[];
+  static const int s_iBackprojectCount;
 
-  static const InterpolationID convertInterpolationNameToID (const char* const interpName);
-  static const char* convertInterpolationIDToName (const InterpolationID interpID);
-  static const BackprojectID convertBackprojectNameToID (const char* const bprojName);
-  static const char* convertBackprojectIDToName (const BackprojectID bprojID);
+  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, Backprojector::InterpolationID interpType, 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);
-    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 ScaleImageByRotIncrement ();
+    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;
-    Backprojector::InterpolationID interpType;
+    int interpType;
     ImageFileArray v;
     kint32 nx;
     kint32 ny;
     double detInc;
-    double rotInc;
+    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
     int m_interpFactor;
+    double m_dFocalLength;
+    double m_dSourceDetectorLength;
+    bool m_bPostProcessingDone;
 
  private:
     Backproject (const Backproject& rhs);
@@ -150,23 +149,24 @@ class Backproject
 class BackprojectTrig : public Backproject
 {
  public:
-  BackprojectTrig (const Projections& proj, ImageFile& im, Backprojector::InterpolationID interpType, 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, Backprojector::InterpolationID interpType, 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;
@@ -177,10 +177,11 @@ class BackprojectTable : public Backproject
 class BackprojectDiff : public Backproject
 {
  public:
-  BackprojectDiff (const Projections& proj, ImageFile& im, Backprojector::InterpolationID interpType, 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;
@@ -188,35 +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, Backprojector::InterpolationID interpType, 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, Backprojector::InterpolationID interpType, 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);
+
+  virtual ~BackprojectEquilinear()
+      {}
+};
 
-class BackprojectIntDiff3 : public BackprojectDiff
+class BackprojectEquiangular : public BackprojectTable
 {
  public:
-  BackprojectIntDiff3 (const Projections& proj, ImageFile& im, Backprojector::InterpolationID 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()
+      {}
 };