te::gm::GTFilter Class Reference

2D Geometric transformation tie-points filter (outliers remotion). More...

#include <GTFilter.h>

Inheritance diagram for te::gm::GTFilter:

Classes
class	ApplyRansacThreadEntryThreadParams
	Parameters used by the GTFilter::applyRansacThreadEntry method. More...

Public Types
typedef long double	RansacFloatCounterT
	RANSAC floating point counter type. More...
typedef unsigned long int	RansacIntegerCounterT
	RANSAC integer counter type. More...

Public Member Functions
bool	applyRansac (const std::string &transfName, const GTParameters &inputParams, const double maxDirectMapError, const double maxInverseMapError, const RansacIntegerCounterT &maxIterations, const double &assurance, const bool enableMultiThread, const std::vector< double > &tiePointsWeights, std::vector< te::gm::GTParameters::TiePoint > &outTiePoints, std::auto_ptr< GeometricTransformation > &outTransf)
	Apply a RANSAC based outliers remotion strategy. More...
	GTFilter ()
	Default constructor. More...
	~GTFilter ()
	Destructor. More...

Static Private Member Functions
static void	applyRansacThreadEntry (te::gm::GTFilter::ApplyRansacThreadEntryThreadParams *paramsPtr)
	Surf locator thread entry. More...
static double	getPt1ConvexHullArea (const std::vector< GTParameters::TiePoint > &tiePoints)
	Returns the tie-points convex hull area (GTParameters::TiePoint::first). More...

Detailed Description

2D Geometric transformation tie-points filter (outliers remotion).

Definition at line 52 of file GTFilter.h.

Member Typedef Documentation

typedef long double te::gm::GTFilter::RansacFloatCounterT

RANSAC floating point counter type.

Definition at line 60 of file GTFilter.h.

typedef unsigned long int te::gm::GTFilter::RansacIntegerCounterT

RANSAC integer counter type.

Definition at line 57 of file GTFilter.h.

Constructor & Destructor Documentation

te::gm::GTFilter::GTFilter

(

)

Default constructor.

te::gm::GTFilter::~GTFilter

(

)

Destructor.

Member Function Documentation

bool te::gm::GTFilter::applyRansac	(	const std::string &	transfName,
		const GTParameters &	inputParams,
		const double	maxDirectMapError,
		const double	maxInverseMapError,
		const RansacIntegerCounterT &	maxIterations,
		const double &	assurance,
		const bool	enableMultiThread,
		const std::vector< double > &	tiePointsWeights,
		std::vector< te::gm::GTParameters::TiePoint > &	outTiePoints,
		std::auto_ptr< GeometricTransformation > &	outTransf
	)

Apply a RANSAC based outliers remotion strategy.

Parameters

transfName	Transformation name (see te::gm::GTFactory dictionary for reference).
inputParams	Input transformation parameters.
maxDirectMapError	The maximum allowed direct mapping error.
maxInverseMapError	The maximum allowed inverse mapping error.
maxIterations	The maximum number of iterations (Use 0-zero to let this number be automatically found).
assurance	The error-free selection assurance - valid range (0-1) - Use Lower values for good tie-points sets - Higher values may increase the number of iterations.
enableMultiThread	Enable multi-threaded processing (good for multi-processor or multi-core systems).
outTransf	The generated output transformation (with the base mininum required tie-points set).
tiePointsWeights	Optional tie-points weights (only positive values) or an empty vector if no weights must be used.
outTiePoints	The filtered output tie-points (non-outliers) in agreenment with the generated transformation.

Returns

true if OK, false on errors.

Note

Reference: Martin A. Fischler and Robert C. Bolles, Random Sample Consensus: A Paradigm for Model Fitting with Applications to Image Analysis and Automated Cartography, Communications of the ACM archive, Volume 24, Issue 6 (June 1981).

static void te::gm::GTFilter::applyRansacThreadEntry ( te::gm::GTFilter::ApplyRansacThreadEntryThreadParams *  paramsPtr )

staticprivate

Surf locator thread entry.

Parameters

paramsPtr

A pointer to the thread parameters.

static double te::gm::GTFilter::getPt1ConvexHullArea ( const std::vector< GTParameters::TiePoint > &  tiePoints )

staticprivate

Returns the tie-points convex hull area (GTParameters::TiePoint::first).

Parameters

tiePoints

Tie points.

Returns

The tie-points convex hull area

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

• /home/castejon/castejon_files/develop/terralib5/git_master/terralib5/src/terralib/geometry/GTFilter.h