cv::LMSolver Class Reference

#include <opencv2/calib3d.hpp>

Collaboration diagram for cv::LMSolver:

Classes
class	Callback

Public Member Functions
virtual int	getMaxIters () const =0
virtual int	run (InputOutputArray param) const =0
virtual void	setMaxIters (int maxIters)=0
Public Member Functions inherited from cv::Algorithm
	Algorithm ()
virtual	~Algorithm ()
virtual void	clear ()
	Clears the algorithm state.
virtual bool	empty () const
	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read.
virtual String	getDefaultName () const
virtual void	read (const FileNode &fn)
	Reads algorithm parameters from a file storage.
virtual void	save (const String &filename) const
void	write (const Ptr< FileStorage > &fs, const String &name=String()) const
virtual void	write (FileStorage &fs) const
	Stores algorithm parameters in a file storage.
void	write (FileStorage &fs, const String &name) const

Static Public Member Functions
static Ptr< LMSolver >	create (const Ptr< LMSolver::Callback > &cb, int maxIters)
static Ptr< LMSolver >	create (const Ptr< LMSolver::Callback > &cb, int maxIters, double eps)
Static Public Member Functions inherited from cv::Algorithm
template<typename _Tp >
static Ptr< _Tp >	load (const String &filename, const String &objname=String())
	Loads algorithm from the file.
template<typename _Tp >
static Ptr< _Tp >	loadFromString (const String &strModel, const String &objname=String())
	Loads algorithm from a String.
template<typename _Tp >
static Ptr< _Tp >	read (const FileNode &fn)
	Reads algorithm from the file node.

Additional Inherited Members
Protected Member Functions inherited from cv::Algorithm
void	writeFormat (FileStorage &fs) const

Detailed Description

Levenberg-Marquardt solver. Starting with the specified vector of parameters it optimizes the target vector criteria "err" (finds local minima of each target vector component absolute value).

When needed, it calls user-provided callback.

Member Function Documentation

create() [1/2]

static Ptr< LMSolver > cv::LMSolver::create ( const Ptr< LMSolver::Callback > &  cb, int  maxIters  )

static

Creates Levenberg-Marquard solver

Parameters

cb	callback
maxIters	maximum number of iterations that can be further modified using setMaxIters() method.

create() [2/2]

static Ptr< LMSolver > cv::LMSolver::create ( const Ptr< LMSolver::Callback > &  cb, int  maxIters, double  eps  )

static

getMaxIters()

virtual int cv::LMSolver::getMaxIters ( ) const

pure virtual

Retrieves the current maximum number of iterations

run()

virtual int cv::LMSolver::run ( InputOutputArray  param ) const

pure virtual

Runs Levenberg-Marquardt algorithm using the passed vector of parameters as the start point. The final vector of parameters (whether the algorithm converged or not) is stored at the same vector. The method returns the number of iterations used. If it's equal to the previously specified maxIters, there is a big chance the algorithm did not converge.

Parameters

param

initial/final vector of parameters.

Note that the dimensionality of parameter space is defined by the size of param vector, and the dimensionality of optimized criteria is defined by the size of err vector computed by the callback.

setMaxIters()

virtual void cv::LMSolver::setMaxIters ( int  maxIters )

pure virtual

Sets the maximum number of iterations

Parameters

maxIters

the number of iterations

---

The documentation for this class was generated from the following file:

• opencv2/calib3d.hpp