Computes non-linear lsq fit of HiRISE Drift (Zd module) More...

#include <ZeroBufferFit.h>

Inheritance diagram for Isis::ZeroBufferFit:

Collaboration diagram for Isis::ZeroBufferFit:

Public Types
typedef TNT::Array1D< double >	NLVector

typedef TNT::Array2D< double >	NLMatrix

Public Member Functions
	ZeroBufferFit (const HiCalConf &conf)
	Compute second level drift correction (Zf module) More...

virtual	~ZeroBufferFit ()
	Destructor. More...

void	setBin (int bin)
	Set binning/summing mode. More...

void	setLineTime (double ltime)
	Set scan line time. More...

int	size () const
	Returns the size of the data buffer. More...

int	nSize () const
	Returns the size of the fitted buffer. More...

int	nParms () const
	Number of parameter to be fitted. More...

void	setabsErr (double absError)
	Sets the absolute error parameter. More...

void	setrelErr (double relError)
	Sets the relative error parameter. More...

double	absErr () const
	Returns the current value of the absolute error. More...

double	relErr () const
	Returns the current value of the relative error. More...

HiVector	Solve (const HiVector &d)
	Compute non-linear fit to (typically) ZeroBufferSmooth module. More...

NLVector	guess ()
	Compute the initial guess of the fit. More...

int	checkIteration (const int Iter, const NLVector &fitcoefs, const NLVector &uncerts, double cplxconj, int Istatus)
	Computes the interation check for convergence. More...

NLVector	f_x (const NLVector &a)
	Computes the function value at the current iteration. More...

NLMatrix	df_x (const NLVector &a)
	Computes the first derivative of the function at the current iteration. More...

double	Chisq () const
	Returns the Chi-Square value of the fit solution. More...

int	DoF () const
	Returns the Degrees of Freedom. More...

HiVector	Yfit () const
	Computes the solution vector using current coefficents. More...

HiVector	Normalize (const HiVector &v)
	Compute normalized solution vector from result. More...

void	setMaxIters (int m)
	Sets the maximum number of iterations. More...

int	maxIters () const
	Maximum number iterations for valid solution. More...

int	curvefit ()

int	status () const
	Return status of last fit processing. More...

bool	success () const
	Determine success from last fit processing. More...

bool	success (int status) const
	Check status for success of the given condition. More...

std::string	statusstr () const
	Return error message pertaining to last fit procesing. More...

std::string	statusstr (int status) const
	Return error message given status condition. More...

NLVector	coefs () const
	Return coefficients from last fit processing. More...

NLVector	uncert () const
	Return uncertainties from last fit processing. More...

int	nIterations () const
	Return number of iterations from last fit processing. More...

QString	name () const
	Returns name of component. More...

QString	getcsvFile () const
	Returns expanded name of last CSV file loaded by loadCsv. More...

virtual void	Process (const Module &c)
	Invokes the process method on the Module vector. More...

virtual void	Process (const HiVector &v)
	Default processing behavior makes a reference copy of data array. More...

HiVector	loadCsv (const QString &csvBase, const HiCalConf &conf, const DbProfile &prof, const int &elements=0)
	Provide generic loading of CSV file for all modules. More...

const HiVector &	ref () const
	Return data via a const reference. More...

double	operator() (int index) const
	Return individual element of the data vector. More...

const HiHistory &	History () const
	Return recorded history of events. More...

virtual void	record (PvlGroup &pvl, const QString keyname="ModuleHistory") const
	Record history in Pvl group object. More...

void	Dump (const QString &fname) const
	Dumps the component to a specified file. More...

Protected Types
enum	{ DefaultWidth = 10, DefaultPrecision = 6 }

Protected Member Functions
void	Terminate (const std::string &message="")

void	Abort (const std::string &reason="")

bool	doContinue () const

QString	formatDbl (const double &value) const
	Properly format values that could be special pixels. More...

Protected Attributes
QString	_name
	Name of component. More...

QString	_csvFile
	Fully expanded name of CSV file if present. More...

HiHistory	_history
	Hierarchial component history. More...

int	_fmtWidth
	Default field with of double. More...

int	_fmtPrecision
	Default field with of double. More...

Private Member Functions
HiVector	poly_fit (const HiVector &d, const double line0=0.0) const
	Compute a polyonomial fit using multivariate statistics. More...

virtual void	printOn (std::ostream &o) const
	Provides virtualized dump of data from this module. More...

int	goodLines (const HiVector &d) const
	Returns the number of good lines in the image. More...

bool	gotGoodLines (const HiVector &d) const
	Determines if the vector contains any valid lines. More...

Private Attributes
HiLineTimeEqn	_timet

HiVector	_data

HiVector	_b2

double	_absErr

double	_relErr

double	_maxLog

int	_badLines

int	_sWidth

int	_sIters

bool	_skipFit

bool	_useLinFit

int	_minLines

HiVector	_cc

HiVector	_guess

HiVector	_coefs

HiVector	_uncert

double	_chisq

Detailed Description

Computes non-linear lsq fit of HiRISE Drift (Zd module)

This class is best used with individual HiRISE images as the number of lines is critical to proper use. It is best applied by getting the buffer as a reference and applying it during systematic processing.
This class models the drift correction using the Levenberg-Marquardt algorithm.

Author: 2007-11-07 Kris Becker

History:

2008-05-23 Kris Becker Added the ZdOnFailUseLinear option.

2010-10-28 Kris Becker Updated parameter names removing "Zd" and replacing with "ZeroBufferFit".

Definition at line 56 of file ZeroBufferFit.h.

Constructor & Destructor Documentation

◆ ZeroBufferFit()

Isis::ZeroBufferFit::ZeroBufferFit ( const HiCalConf & conf )

Compute second level drift correction (Zf module)

This class provides the second level drift correction that is

Parameters

conf

Definition at line 53 of file ZeroBufferFit.cpp.

References Isis::Module::_history, Isis::ConfKey(), Isis::DbProfile::exists(), Isis::IsEqual(), Isis::IsTrueValue(), Isis::NonLinearLSQ::maxIters(), Isis::DbProfile::Name(), Isis::NonLinearLSQ::setMaxIters(), Isis::toDouble(), Isis::ToDouble(), Isis::toInt(), Isis::ToInteger(), and Isis::ToString().

◆ ~ZeroBufferFit()

virtual Isis::ZeroBufferFit::~ZeroBufferFit ( )

inlinevirtual

Destructor.

Definition at line 61 of file ZeroBufferFit.h.

Member Function Documentation

◆ absErr()

double Isis::ZeroBufferFit::absErr ( ) const

inlinevirtual

Returns the current value of the absolute error.

Reimplemented from Isis::NonLinearLSQ.

Definition at line 115 of file ZeroBufferFit.h.

◆ checkIteration()

int Isis::ZeroBufferFit::checkIteration	(	const int	Iter,
		const NLVector &	fitcoefs,
		const NLVector &	uncerts,
		double	cplxconj,
		int	Istatus
	)

virtual

Computes the interation check for convergence.

Parameters

Iter	Current iteration
fitcoefs	Vector of current fit coefficients
uncerts	Uncertainties
cplxconj	Complex conjugate of the current iteration
Istatus	State of current iteration

Returns: int Simply passes on the Istatus value

Reimplemented from Isis::NonLinearLSQ.

Definition at line 234 of file ZeroBufferFit.cpp.

◆ Chisq()

double Isis::ZeroBufferFit::Chisq ( ) const

inline

Returns the Chi-Square value of the fit solution.

Definition at line 129 of file ZeroBufferFit.h.

Referenced by Solve().

◆ coefs()

NLVector Isis::NonLinearLSQ::coefs ( ) const

inlineinherited

Return coefficients from last fit processing.

Definition at line 118 of file NonLinearLSQ.h.

Referenced by Solve().

◆ df_x()

NonLinearLSQ::NLMatrix Isis::ZeroBufferFit::df_x ( const NLVector & a )

virtual

Computes the first derivative of the function at the current iteration.

Implements Isis::NonLinearLSQ.

Definition at line 260 of file ZeroBufferFit.cpp.

References Isis::MIN().

◆ DoF()

int Isis::ZeroBufferFit::DoF ( ) const

inline

Returns the Degrees of Freedom.

Definition at line 131 of file ZeroBufferFit.h.

References nParms(), and nSize().

Referenced by Solve().

◆ Dump()

void Isis::Module::Dump ( const QString & fname ) const

inlineinherited

Dumps the component to a specified file.

Parameters

fname Name of file to dump contents to

Definition at line 146 of file Module.h.

References _FILEINFO_, Isis::FileName::expanded(), and Isis::IException::User.

◆ f_x()

NonLinearLSQ::NLVector Isis::ZeroBufferFit::f_x ( const NLVector & a )

virtual

Computes the function value at the current iteration.

Implements Isis::NonLinearLSQ.

Definition at line 242 of file ZeroBufferFit.cpp.

References Isis::MIN().

◆ formatDbl()

QString Isis::Module::formatDbl ( const double & value ) const

inlineprotectedinherited

Properly format values that could be special pixels.

This method applies ISIS special pixel value conventions to properly print pixel values.

Parameters

[in]	(double)	value Input value to test for specialness and print as requested by caller
[in]	(int)	width Width of field in which to print the value
[in]	(int)	prec Precision used to format the value

Returns: (string) Formatted double value

Definition at line 184 of file Module.h.

References Isis::Module::_fmtPrecision, Isis::Module::_fmtWidth, Isis::IsSpecial(), and Isis::PixelToString().

Referenced by Isis::ZeroBufferSmooth::printOn(), printOn(), Isis::ZeroDark::printOn(), Isis::ZeroReverse::printOn(), and Isis::Module::printOn().

◆ getcsvFile()

QString Isis::Module::getcsvFile ( ) const

inlineinherited

Returns expanded name of last CSV file loaded by loadCsv.

Definition at line 86 of file Module.h.

References Isis::Module::_csvFile.

◆ goodLines()

int Isis::ZeroBufferFit::goodLines ( const HiVector & d ) const

inlineprivate

Returns the number of good lines in the image.

Definition at line 158 of file ZeroBufferFit.h.

Referenced by gotGoodLines(), and Solve().

◆ gotGoodLines()

bool Isis::ZeroBufferFit::gotGoodLines ( const HiVector & d ) const

inlineprivate

Determines if the vector contains any valid lines.

Definition at line 160 of file ZeroBufferFit.h.

References goodLines().

Referenced by Solve(), and Yfit().

◆ guess()

NonLinearLSQ::NLVector Isis::ZeroBufferFit::guess ( )

virtual

Compute the initial guess of the fit.

This method provides the non-linear fit with an initial guess of the solution. It involves a linear fit to the latter half of the data to provide the first two coefficents, the difference of the averages of the residuals at both ends of the data set and 5 times the last line time as the final (fourth) element...a bit involved really.

Returns: NLVector 4-element vector of the initial guess coefficients

Implements Isis::NonLinearLSQ.

Definition at line 177 of file ZeroBufferFit.cpp.

References Isis::Module::_history, Isis::Statistics::AddData(), Isis::Statistics::Average(), Isis::MIN(), poly_fit(), Isis::Module::ref(), Isis::Statistics::Reset(), and Isis::ToString().

◆ History()

const HiHistory& Isis::Module::History ( ) const

inlineinherited

Return recorded history of events.

Definition at line 131 of file Module.h.

References Isis::Module::_history.

Referenced by Isis::ZeroReverse::init(), and Isis::ZeroBufferSmooth::init().

◆ loadCsv()

HiVector Isis::Module::loadCsv	(	const QString &	csvBase,
		const HiCalConf &	conf,
		const DbProfile &	prof,
		const int &	elements = `0`
	)

inlineinherited

Provide generic loading of CSV file for all modules.

This method provides generalized access to CSV files through the standardized format.

Author: Kris Becker - 4/16/2010

Parameters

cvsBase	Name of base keyword for CSV file
conf	Configuration parameters
prof	Module profile parameters
samples	Number of expect elements to be read from CSV file

Returns: HiVector

Definition at line 116 of file Module.h.

References Isis::Module::_csvFile, and Isis::Module::_history.

◆ maxIters()

int Isis::NonLinearLSQ::maxIters ( ) const

inlineinherited

Maximum number iterations for valid solution.

Returns: int Maximum resolutions

Definition at line 85 of file NonLinearLSQ.h.

Referenced by ZeroBufferFit().

◆ name()

QString Isis::Module::name ( ) const

inlineinherited

Returns name of component.

Definition at line 84 of file Module.h.

References Isis::Module::_name.

◆ nIterations()

int Isis::NonLinearLSQ::nIterations ( ) const

inlineinherited

Return number of iterations from last fit processing.

Definition at line 122 of file NonLinearLSQ.h.

Referenced by Solve().

◆ Normalize()

HiVector Isis::ZeroBufferFit::Normalize ( const HiVector & v )

Compute normalized solution vector from result.

Definition at line 297 of file ZeroBufferFit.cpp.

References Isis::Module::_history, and Isis::ToString().

◆ nParms()

int Isis::ZeroBufferFit::nParms ( ) const

inlinevirtual

Number of parameter to be fitted.

This is the number of parameters that ZeroBufferFit needs to fit. This method is a requirement of the NonLinearLSQ class.

Returns: int Number of parameter to fit

Implements Isis::NonLinearLSQ.

Definition at line 108 of file ZeroBufferFit.h.

Referenced by DoF().

◆ nSize()

int Isis::ZeroBufferFit::nSize ( ) const

inlinevirtual

Returns the size of the fitted buffer.

Important: This returns the size of the buffer being fitted and not the size of original data buffer. This is a requirement of the NonLinearLSQ class. USE WITH CAUTION!

Returns: int Size of buffer being fitted

Implements Isis::NonLinearLSQ.

Definition at line 98 of file ZeroBufferFit.h.

Referenced by DoF().

◆ operator()()

double Isis::Module::operator() ( int index ) const

inlineinherited

Return individual element of the data vector.

Definition at line 128 of file Module.h.

References Isis::Module::_data.

◆ poly_fit()

HiVector Isis::ZeroBufferFit::poly_fit	(	const HiVector &	d,
		const double	line0 = `0.0`
	)		const

private

Compute a polyonomial fit using multivariate statistics.

Used as a fallback solution, this method computes a linear statistical solution from the linear regression analysis of the multivariate statistics of the data.

Parameters

d	Data vector to fit
line0	Current line number in the image

Returns: HiVector Returns the fitted data

Definition at line 320 of file ZeroBufferFit.cpp.

References Isis::MultivariateStatistics::AddData(), and Isis::MultivariateStatistics::LinearRegression().

Referenced by guess(), and Solve().

◆ printOn()

void Isis::ZeroBufferFit::printOn ( std::ostream & o ) const

privatevirtual

Provides virtualized dump of data from this module.

Reimplemented from Isis::Module.

Definition at line 334 of file ZeroBufferFit.cpp.

References Isis::Module::_fmtWidth, Isis::Module::_history, Isis::Module::formatDbl(), and Yfit().

◆ Process() [1/2]

virtual void Isis::Module::Process ( const Module & c )

inlinevirtualinherited

Invokes the process method on the Module vector.

Definition at line 91 of file Module.h.

References Isis::Module::ref().

◆ Process() [2/2]

virtual void Isis::Module::Process ( const HiVector & v )

inlinevirtualinherited

Default processing behavior makes a reference copy of data array.

Reimplemented in Isis::SplineFill, and Isis::LowPassFilter.

Definition at line 96 of file Module.h.

References Isis::Module::_data.

◆ record()

virtual void Isis::Module::record	(	PvlGroup &	pvl,
		const QString	keyname = `"ModuleHistory"`
	)		const

inlinevirtualinherited

Record history in Pvl group object.

Definition at line 134 of file Module.h.

References Isis::Module::_history.

◆ ref()

const HiVector& Isis::Module::ref ( ) const

inlineinherited

Return data via a const reference.

Definition at line 126 of file Module.h.

References Isis::Module::_data.

Referenced by guess(), Isis::ZeroReverse::init(), Isis::ZeroBufferSmooth::init(), and Isis::Module::Process().

◆ relErr()

double Isis::ZeroBufferFit::relErr ( ) const

inlinevirtual

Returns the current value of the relative error.

Reimplemented from Isis::NonLinearLSQ.

Definition at line 117 of file ZeroBufferFit.h.

◆ setabsErr()

void Isis::ZeroBufferFit::setabsErr ( double absError )

inline

Sets the absolute error parameter.

Definition at line 111 of file ZeroBufferFit.h.

◆ setBin()

void Isis::ZeroBufferFit::setBin ( int bin )

inline

Set binning/summing mode.

Parameters

bin	Summing mode of observatio

Definition at line 68 of file ZeroBufferFit.h.

◆ setLineTime()

void Isis::ZeroBufferFit::setLineTime ( double ltime )

inline

Set scan line time.

Parameters

ltime Scan line time

Definition at line 75 of file ZeroBufferFit.h.

◆ setMaxIters()

void Isis::NonLinearLSQ::setMaxIters ( int m )

inlineinherited

Sets the maximum number of iterations.

Parameters

m	User provides the maximum number iterations

Definition at line 77 of file NonLinearLSQ.h.

Referenced by ZeroBufferFit().

◆ setrelErr()

void Isis::ZeroBufferFit::setrelErr ( double relError )

inline

Sets the relative error parameter.

Definition at line 113 of file ZeroBufferFit.h.

◆ size()

int Isis::ZeroBufferFit::size ( ) const

inline

Returns the size of the data buffer.

This is the size of the original data buffer.

See also: nSize()

Returns: int Size of the input buffer

Definition at line 85 of file ZeroBufferFit.h.

◆ Solve()

HiVector Isis::ZeroBufferFit::Solve ( const HiVector & d )

Compute non-linear fit to (typically) ZeroBufferSmooth module.

This method computes a non-linear fit to the result of the ZeroBufferSmooth module. There are several things that can go wrong and some config conditions that dictate behavior of this process.

Should the image be a short exposure (i.e., not many lines) the fit will not succeed so it simply skips this entire module providing the input result (d) as the solution. This wil also occur when the user has selected the skip option for the module.

A fit is attempted on the ZeroBufferSmooth data. The non-linear solution must converge within the specifed number of iterations (MaximumIterations) or a polynomial fit will be used in leui of a valid solution.

Parameters

d	ZeroBufferSmooth data solution as input to this method

Returns: HiVector Returns result of the processing

Definition at line 106 of file ZeroBufferFit.cpp.

References Isis::Module::_history, Chisq(), Isis::NonLinearLSQ::coefs(), DoF(), goodLines(), gotGoodLines(), Isis::NonLinearLSQ::nIterations(), poly_fit(), Isis::NonLinearLSQ::statusstr(), Isis::NonLinearLSQ::success(), Isis::ToString(), Isis::NonLinearLSQ::uncert(), and Yfit().

◆ status()

int Isis::NonLinearLSQ::status ( ) const

inlineinherited

Return status of last fit processing.

Definition at line 96 of file NonLinearLSQ.h.

Referenced by Isis::NonLinearLSQ::statusstr(), and Isis::NonLinearLSQ::success().

◆ statusstr() [1/2]

std::string Isis::NonLinearLSQ::statusstr ( ) const

inlineinherited

Return error message pertaining to last fit procesing.

Definition at line 102 of file NonLinearLSQ.h.

Referenced by Solve().

◆ statusstr() [2/2]

std::string Isis::NonLinearLSQ::statusstr ( int status ) const

inlineinherited

Return error message given status condition.

Definition at line 106 of file NonLinearLSQ.h.

References Isis::NonLinearLSQ::status().

◆ success() [1/2]

bool Isis::NonLinearLSQ::success ( ) const

inlineinherited

Determine success from last fit processing.

Definition at line 98 of file NonLinearLSQ.h.

Referenced by Solve().

◆ success() [2/2]

bool Isis::NonLinearLSQ::success ( int status ) const

inlineinherited

Check status for success of the given condition.

Definition at line 100 of file NonLinearLSQ.h.

References Isis::NonLinearLSQ::status().

◆ uncert()

NLVector Isis::NonLinearLSQ::uncert ( ) const

inlineinherited

Return uncertainties from last fit processing.

Definition at line 120 of file NonLinearLSQ.h.

Referenced by Solve().

◆ Yfit()

HiVector Isis::ZeroBufferFit::Yfit ( ) const

Computes the solution vector using current coefficents.

Definition at line 281 of file ZeroBufferFit.cpp.

References gotGoodLines().

Referenced by printOn(), and Solve().

Member Data Documentation

◆ _csvFile

QString Isis::Module::_csvFile

protectedinherited

Fully expanded name of CSV file if present.

Definition at line 165 of file Module.h.

Referenced by Isis::Module::getcsvFile(), and Isis::Module::loadCsv().

◆ _fmtPrecision

int Isis::Module::_fmtPrecision

protectedinherited

Default field with of double.

Definition at line 169 of file Module.h.

Referenced by Isis::Module::formatDbl().

◆ _fmtWidth

int Isis::Module::_fmtWidth

protectedinherited

Default field with of double.

Definition at line 168 of file Module.h.

Referenced by Isis::Module::formatDbl(), Isis::ZeroBufferSmooth::printOn(), printOn(), Isis::ZeroDark::printOn(), and Isis::ZeroReverse::printOn().

◆ _history

HiHistory Isis::Module::_history

protectedinherited

Hierarchial component history.

Definition at line 167 of file Module.h.

Referenced by Isis::GainUnitConversion::getTempDepGain(), guess(), Isis::Module::History(), Isis::ZeroReverse::init(), Isis::ZeroBufferSmooth::init(), Isis::Module::loadCsv(), Normalize(), Isis::ZeroBufferSmooth::printOn(), printOn(), Isis::ZeroDark::printOn(), Isis::ZeroReverse::printOn(), Isis::Module::printOn(), Isis::LowPassFilter::Process(), Isis::SplineFill::Process(), Isis::Module::record(), Solve(), and ZeroBufferFit().

◆ _name

QString Isis::Module::_name

protectedinherited

Name of component.

Definition at line 164 of file Module.h.

Referenced by Isis::Module::name().

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

src/mro/objs/HiCal/ZeroBufferFit.h
src/mro/objs/HiCal/ZeroBufferFit.cpp

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ZeroBufferFit()

◆ ~ZeroBufferFit()

Member Function Documentation

◆ absErr()

◆ checkIteration()

◆ Chisq()

◆ coefs()

◆ df_x()

◆ DoF()

◆ Dump()

◆ f_x()

◆ formatDbl()

◆ getcsvFile()

◆ goodLines()

◆ gotGoodLines()

◆ guess()

◆ History()

◆ loadCsv()

◆ maxIters()

◆ name()

◆ nIterations()

◆ Normalize()

◆ nParms()

◆ nSize()

◆ operator()()

◆ poly_fit()

◆ printOn()

◆ Process() [1/2]

◆ Process() [2/2]

◆ record()

◆ ref()

◆ relErr()

◆ setabsErr()

◆ setBin()

◆ setLineTime()

◆ setMaxIters()

◆ setrelErr()

◆ size()

◆ Solve()

◆ status()

◆ statusstr() [1/2]

◆ statusstr() [2/2]

◆ success() [1/2]

◆ success() [2/2]

◆ uncert()

◆ Yfit()

Member Data Documentation

◆ _csvFile

◆ _fmtPrecision

◆ _fmtWidth

◆ _history

◆ _name