itkAdaptiveStochasticPreconditionedGradientDescentOptimizer.h

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#ifndef __itkAdaptiveStochasticPreconditionedGradientDescentOptimizer_h
#define __itkAdaptiveStochasticPreconditionedGradientDescentOptimizer_h
 
#include "itkStochasticPreconditionedGradientDescentOptimizer.h"
 
#include "vnl/vnl_math.h"
#include "itkSigmoidImageFilter.h"
 
namespace itk
{
class AdaptiveStochasticPreconditionedGradientDescentOptimizer :
  public StochasticPreconditionedGradientDescentOptimizer
{
public:
 
  typedef AdaptiveStochasticPreconditionedGradientDescentOptimizer    Self;
  typedef StochasticPreconditionedGradientDescentOptimizer           Superclass;
 
  typedef SmartPointer<Self>                  Pointer;
  typedef SmartPointer<const Self>            ConstPointer;
 
  itkNewMacro( Self );
 
  itkTypeMacro( AdaptiveStochasticPreconditionedGradientDescentOptimizer,
    StochasticPreconditionedGradientDescentOptimizer );
 
  typedef Superclass::MeasureType               MeasureType;
  typedef Superclass::ParametersType            ParametersType;
  typedef Superclass::DerivativeType            DerivativeType;
  typedef Superclass::CostFunctionType          CostFunctionType;
  typedef Superclass::ScalesType                ScalesType;
  typedef Superclass::ScaledCostFunctionType    ScaledCostFunctionType;
  typedef Superclass::ScaledCostFunctionPointer ScaledCostFunctionPointer;
  typedef Superclass::StopConditionType         StopConditionType;
 
  typedef Superclass::PreconditionValueType     PreconditionValueType;
  typedef Superclass::PreconditionType          PreconditionType;
  //typedef Superclass::EigenSystemType           EigenSystemType;
 
  itkSetMacro( UseAdaptiveStepSizes, bool );
  itkGetConstMacro( UseAdaptiveStepSizes, bool );
 
  itkSetMacro( SigmoidMax, double );
  itkGetConstMacro( SigmoidMax, double );
 
  itkSetMacro( SigmoidMin, double );
  itkGetConstMacro( SigmoidMin, double );
 
  itkSetMacro( SigmoidScale, double );
  itkGetConstMacro( SigmoidScale, double );
 
protected:
 
  AdaptiveStochasticPreconditionedGradientDescentOptimizer();
  virtual ~AdaptiveStochasticPreconditionedGradientDescentOptimizer() {};
 
  virtual void UpdateCurrentTime( void );
 
  DerivativeType m_PreviousSearchDirection;
 
private:
 
  AdaptiveStochasticPreconditionedGradientDescentOptimizer( const Self& );  // purposely not implemented
  void operator=( const Self& );              // purposely not implemented
 
  bool                          m_UseAdaptiveStepSizes;
  double                        m_SigmoidMax;
  double                        m_SigmoidMin;
  double                        m_SigmoidScale;
 
}; // end class AdaptiveStochasticPreconditionedGradientDescentOptimizer
 
 
} // end namespace itk
 
 
#endif // end #ifndef __itkAdaptiveStochasticPreconditionedGradientDescentOptimizer_h