Libs/Optimize/ParticleSystem/itkParticleMeshBasedGeneralEntropyGradientFunction.h
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Classes
Source code
#ifndef ITKPARTICLEMESHBASEDGENERALENTROPYGRADIENTFUNCTION_H
#define ITKPARTICLEMESHBASEDGENERALENTROPYGRADIENTFUNCTION_H
/*
* Author: Praful
* Class for mesh based features/attributes for shape correspondence
*/
#include "itkParticleVectorFunction.h"
#include <vector>
#include <numeric>
#include "itkParticleGeneralShapeMatrix.h"
#include "itkParticleGeneralShapeGradientMatrix.h"
namespace itk
{
template <unsigned int VDimension>
class ParticleMeshBasedGeneralEntropyGradientFunction : public ParticleVectorFunction<VDimension>
{
public:
typedef ParticleMeshBasedGeneralEntropyGradientFunction Self;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
typedef ParticleVectorFunction<VDimension> Superclass;
itkTypeMacro( ParticleMeshBasedGeneralEntropyGradientFunction, ParticleVectorFunction)
typedef typename Superclass::ParticleSystemType ParticleSystemType;
typedef ParticleGeneralShapeMatrix<double, VDimension> ShapeDataType;
typedef ParticleGeneralShapeGradientMatrix<double, VDimension> ShapeGradientType;
typedef typename ShapeDataType::DataType DataType;
typedef typename Superclass::VectorType VectorType;
typedef typename ParticleSystemType::PointType PointType;
typedef vnl_vector<DataType> vnl_vector_type;
typedef vnl_matrix<DataType> vnl_matrix_type;
itkNewMacro(Self)
itkStaticConstMacro(Dimension, unsigned int, VDimension);
void SetShapeData( ShapeDataType *s)
{ m_ShapeData = s; }
ShapeDataType *GetShapeData()
{ return m_ShapeData.GetPointer(); }
const ShapeDataType *GetShapeData() const
{ return m_ShapeData.GetPointer(); }
void SetShapeGradient( ShapeGradientType *s)
{ m_ShapeGradient = s; }
ShapeGradientType *GetShapeGradient()
{ return m_ShapeGradient.GetPointer(); }
const ShapeGradientType *GetShapeGradient() const
{ return m_ShapeGradient.GetPointer(); }
virtual VectorType Evaluate(unsigned int, unsigned int,
const ParticleSystemType *, double &, double&) const;
virtual VectorType Evaluate(unsigned int a, unsigned int b,
const ParticleSystemType *c, double &d) const
{
double e;
return this->Evaluate(a,b,c,d,e);
}
virtual double Energy(unsigned int a, unsigned int b,
const ParticleSystemType *c) const
{
double e, d;
this->Evaluate(a,b,c,d,e);
return e;
}
virtual void BeforeIteration()
{
this->ComputeUpdates(this->m_ParticleSystem);
}
virtual void AfterIteration()
{
// Update the annealing parameter.
if (m_HoldMinimumVariance != true && !m_UseMeanEnergy)
{
m_Counter++;
if (m_Counter >= m_RecomputeCovarianceInterval)
{
m_Counter = 0;
m_MinimumVariance *= m_MinimumVarianceDecayConstant;
}
}
}
void SetMinimumVarianceDecay(double initial_value, double final_value, double time_period)
{
m_MinimumVarianceDecayConstant = exp(log(final_value / initial_value) / time_period);
m_MinimumVariance = initial_value;
m_HoldMinimumVariance = false;
}
void SetMinimumVariance( double d)
{ m_MinimumVariance = d;}
double GetMinimumVariance() const
{ return m_MinimumVariance; }
bool GetHoldMinimumVariance() const
{ return m_HoldMinimumVariance; }
void SetHoldMinimumVariance(bool b)
{ m_HoldMinimumVariance = b; }
void SetRecomputeCovarianceInterval(int i)
{ m_RecomputeCovarianceInterval = i; }
int GetRecomputeCovarianceInterval() const
{ return m_RecomputeCovarianceInterval; }
void SetAttributeScales( const std::vector<double> &s)
{ m_AttributeScales = s; }
void SetDomainsPerShape(int i)
{ m_DomainsPerShape = i; }
int GetDomainsPerShape() const
{ return m_DomainsPerShape; }
void SetAttributesPerDomain(const std::vector<int> &i)
{ m_AttributesPerDomain = i; }
void UseMeanEnergy()
{ m_UseMeanEnergy = true; }
void UseEntropy()
{ m_UseMeanEnergy = false; }
void SetXYZ(int i, bool val)
{
if (m_UseXYZ.size() != m_DomainsPerShape)
m_UseXYZ.resize(m_DomainsPerShape);
m_UseXYZ[i] = val;
}
void SetNormals(int i, bool val)
{
if (m_UseNormals.size() != m_DomainsPerShape)
m_UseNormals.resize(m_DomainsPerShape);
m_UseNormals[i] = val;
}
bool CheckForNans(vnl_matrix_type mat)
{
bool flag = false;
for (int i = 0; i < mat.rows(); i++)
{
for (int j = 0; j < mat.cols(); j++)
{
if (isnan(mat(i,j)))
{
flag = true;
break;
}
}
}
return flag;
}
virtual typename ParticleVectorFunction<VDimension>::Pointer Clone()
{
typename ParticleMeshBasedGeneralEntropyGradientFunction<VDimension>::Pointer copy =
ParticleMeshBasedGeneralEntropyGradientFunction<VDimension>::New();
// from itkParticleVectorFunction
copy->m_DomainNumber = this->m_DomainNumber;
copy->m_ParticleSystem = this->m_ParticleSystem;
// local
copy->m_AttributeScales = this->m_AttributeScales;
copy->m_Counter = this->m_Counter;
copy->m_CurrentEnergy = this->m_CurrentEnergy;
copy->m_HoldMinimumVariance = this->m_HoldMinimumVariance;
copy->m_MinimumEigenValue = this->m_MinimumEigenValue;
copy->m_MinimumVariance = this->m_MinimumVariance;
copy->m_MinimumVarianceDecayConstant = this->m_MinimumVarianceDecayConstant;
copy->m_PointsUpdate = this->m_PointsUpdate;
copy->m_RecomputeCovarianceInterval = this->m_RecomputeCovarianceInterval;
copy->m_AttributesPerDomain = this->m_AttributesPerDomain;
copy->m_DomainsPerShape = this->m_DomainsPerShape;
copy->m_UseMeanEnergy = this->m_UseMeanEnergy;
copy->m_points_mean = this->m_points_mean;
copy->m_UseNormals = this->m_UseNormals;
copy->m_UseXYZ = this->m_UseXYZ;
copy->m_InverseCovMatrix = this->m_InverseCovMatrix;
copy->m_ShapeData = this->m_ShapeData;
copy->m_ShapeGradient = this->m_ShapeGradient;
return (typename ParticleVectorFunction<VDimension>::Pointer)copy;
}
protected:
ParticleMeshBasedGeneralEntropyGradientFunction()
{
// m_MinimumVarianceBase = 1.0;//exp(log(1.0e-5)/10000.0);
m_HoldMinimumVariance = true;
m_MinimumVariance = 1.0e-5;
m_MinimumEigenValue = 0.0;
m_MinimumVarianceDecayConstant = 1.0; //log(2.0) / 50000.0;
m_RecomputeCovarianceInterval = 1;
m_Counter = 0;
m_UseMeanEnergy = true;
m_UseNormals.clear();
m_UseXYZ.clear();
num_dims = 0;
num_samples = 0;
m_PointsUpdate = std::make_shared<vnl_matrix_type>(10, 10);
m_InverseCovMatrix = std::make_shared<vnl_matrix_type>(10, 10);
m_points_mean = std::make_shared<vnl_matrix_type>(10, 10);
}
virtual ~ParticleMeshBasedGeneralEntropyGradientFunction() {}
void operator=(const ParticleMeshBasedGeneralEntropyGradientFunction &);
ParticleMeshBasedGeneralEntropyGradientFunction(const ParticleMeshBasedGeneralEntropyGradientFunction &);
typename ShapeDataType::Pointer m_ShapeData;
typename ShapeGradientType::Pointer m_ShapeGradient;
virtual void ComputeUpdates(const ParticleSystemType *c);
std::shared_ptr<vnl_matrix_type> m_PointsUpdate;
double m_MinimumVariance;
double m_MinimumEigenValue;
// double m_MinimumVarianceBase;
bool m_HoldMinimumVariance;
int m_RecomputeCovarianceInterval;
double m_MinimumVarianceDecayConstant;
int m_Counter;
std::vector<double> m_AttributeScales; //size \sum_i n_i
int m_DomainsPerShape;
std::vector<int> m_AttributesPerDomain; // n
double m_CurrentEnergy;
bool m_UseMeanEnergy;
std::vector<bool> m_UseXYZ;
std::vector<bool> m_UseNormals;
std::shared_ptr<vnl_matrix_type> m_points_mean;
std::shared_ptr<vnl_matrix_type> m_InverseCovMatrix;
int num_dims, num_samples;
};
} // end namespace
#if ITK_TEMPLATE_EXPLICIT
#include "Templates/itkParticleMeshBasedGeneralEntropyGradientFunction+-.h"
#endif
#if ITK_TEMPLATE_TXX
#include "itkParticleMeshBasedGeneralEntropyGradientFunction.txx"
#endif
#include "itkParticleMeshBasedGeneralEntropyGradientFunction.txx"
#endif // ITKPARTICLEMESHBASEDGENERALENTROPYGRADIENTFUNCTION_H
Updated on 2022-07-23 at 17:50:04 -0600