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 unsigned long long int	RansacItCounterT
	RANSAC iterations counter type. More...

Public Member Functions
bool	applyRansac (const std::string &transfName, const GTParameters &inputParams, const double maxDirectMapError, const double maxInverseMapError, const RansacItCounterT &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 unsigned long long int te::gm::GTFilter::RansacItCounterT

RANSAC iterations counter type.

Definition at line 57 of file GTFilter.h.

Constructor & Destructor Documentation

te::gm::GTFilter::GTFilter ( )

Default constructor.

Definition at line 195 of file GTFilter.cpp.

te::gm::GTFilter::~GTFilter ( )

Destructor.

Definition at line 191 of file GTFilter.cpp.

Member Function Documentation

bool te::gm::GTFilter::applyRansac	(	const std::string &	transfName,
		const GTParameters &	inputParams,
		const double	maxDirectMapError,
		const double	maxInverseMapError,
		const RansacItCounterT &	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. Use 0-zero to let this number be automatically found.
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).

Definition at line 199 of file GTFilter.cpp.

References applyRansacThreadEntry(), te::common::GetPhysProcNumber(), te::gm::GTParameters::m_tiePoints, te::gm::GTFilter::ApplyRansacThreadEntryThreadParams::m_transfNamePtr, te::common::AbstractFactory< GeometricTransformation, std::string >::make(), and RANSACGETMAXITERATIONS.

Referenced by te::rp::TiePointsLocator::execute().

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

staticprivate

Surf locator thread entry.

Parameters

paramsPtr A pointer to the thread parameters.

Definition at line 368 of file GTFilter.cpp.

Referenced by applyRansac().

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

Definition at line 651 of file GTFilter.cpp.

References te::gm::GeometryCollection::add(), te::gm::Geometry::convexHull(), and te::gm::MultiPointType.

Referenced by applyRansacThreadEntry().

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

/home/castejon/castejon_files/develop/terralib5/git/src/terralib/geometry/GTFilter.h
/home/castejon/castejon_files/develop/terralib5/git/src/terralib/geometry/GTFilter.cpp

Classes

Public Types

Public Member Functions

Static Private Member Functions

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation