LeastSquareModelFitting2D.h

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/********************************************************************
**                Image Component Library (ICL)                    **
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** Copyright (C) 2006-2013 CITEC, University of Bielefeld          **
**                         Neuroinformatics Group                  **
** Website: www.iclcv.org and                                      **
**          http://opensource.cit-ec.de/projects/icl               **
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** File   : ICLMath/src/ICLMath/LeastSquareModelFitting2D.h        **
** Module : ICLMath                                                **
** Authors: Christof Elbrechter                                    **
**                                                                 **
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** GNU LESSER GENERAL PUBLIC LICENSE                               **
** This file may be used under the terms of the GNU Lesser General **
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** The development of this software was supported by the           **
** Excellence Cluster EXC 277 Cognitive Interaction Technology.    **
** The Excellence Cluster EXC 277 is a grant of the Deutsche       **
** Forschungsgemeinschaft (DFG) in the context of the German       **
** Excellence Initiative.                                          **
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********************************************************************/

#pragma once

#include <ICLMath/LeastSquareModelFitting.h>

namespace icl{
  namespace math{
  

    class LeastSquareModelFitting2D : public LeastSquareModelFitting<double,Point32f>{
      typedef LeastSquareModelFitting<double,Point32f> Super;
      public:
      LeastSquareModelFitting2D(){}
      
      LeastSquareModelFitting2D(int modelDim, DesignMatrixGen gen, 
                           DynMatrix<double> *constraintMatrix = 0):
      Super(modelDim,gen,constraintMatrix){}
      

      static inline void line_gen(const Point32f &p, double *d){
        d[0] = p.x; 
        d[1] = p.y; 
        d[2] = 1;
      }
      

      static inline void circle_gen(const Point32f &p, double *d){
        d[0] = sqr(p.x) + sqr(p.y);
        d[1] = p.x;
        d[2] = p.y;
        d[3] = 1;
      }
  

      static inline void restr_ellipse_gen(const Point32f &p, double *d){
        d[0] = sqr(p.x);
        d[1] = sqr(p.y);
        d[2] = p.x;
        d[3] = p.y;
        d[4] = 1;
      }
  

      static inline void ellipse_gen(const Point32f &p, double *d){
        d[0] = sqr(p.x);
        d[1] = p.x * p.y;
        d[2] = sqr(p.y);
        d[3] = p.x;
        d[4] = p.y;
        d[5] = 1;
      }
      
      inline std::vector<double> fit(const std::vector<Point32f> &points){
        return Super::fit(points);
      }
      inline icl64f getError(const std::vector<double> &model,const Point32f &p) {
        return Super::getError(model,p);
      }
    };
  
  
  } // namespace math
}