ShapeContextGenerator Class Reference

#include <ShapeContext.h>

Inheritance diagram for ShapeContextGenerator:

Public Member Functions
virtual Descriptor *	describe (const OrientedPoint2D &point, const LaserReading &reading)
virtual Descriptor *	describe (const InterestPoint &point, const LaserReading &reading)
unsigned int	getBinPhi () const
unsigned int	getBinRho () const
const HistogramDistance< double > *	getDistanceFunction () const
double	getMaxRho () const
double	getMinRho () const
const std::vector< double > &	getPhiEdges () const
const std::vector< double > &	getRhoEdges () const
void	setDistanceFunction (const HistogramDistance< double > *distanceFunction)
void	setEdges (const std::vector< double > &rhoEdges, const std::vector< double > &phiEdges)
void	setEdges (double minRho, double maxRho, unsigned int binRho, unsigned int binPhi)
	ShapeContextGenerator (const std::vector< double > &rhoEdges, const std::vector< double > &phiEdges)
	ShapeContextGenerator (double minRho, double maxRho, unsigned int binRho, unsigned int binPhi)
Protected Attributes
const HistogramDistance< double > *	m_distanceFunction
std::vector< double >	m_phiEdges
std::vector< double >	m_rhoEdges

Detailed Description

Representation of the shape context descriptor generator. The class generates the Shape Context descriptor of Belongie et al. It provides the interface to generate the descriptor from a laser reading and set the descriptor size.

Author:: Gian Diego Tipaldi

Definition at line 82 of file ShapeContext.h.

Constructor & Destructor Documentation

ShapeContextGenerator::ShapeContextGenerator	(	double	minRho,
		double	maxRho,
		unsigned int	binRho,
		unsigned int	binPhi
	)

Constructor. It sets the size of the generated shape context and the number of bins.

Parameters:

	minRho	The minimum distance for a point to be included in the descriptor.
	maxRho	The maximum distance for a point to be included in the descriptor.
	binRho	The number of bins in the radial coordinate of the descriptor.
	binPhi	The number of bins in the angular coordinate of the descriptor.

Definition at line 3 of file ShapeContext.cpp.

ShapeContextGenerator::ShapeContextGenerator	(	const std::vector< double > &	rhoEdges,
		const std::vector< double > &	phiEdges
	)

Constructor. It sets the size of the generated shape context and the number of bins.

Parameters:

	rhoEdges	Vector containing the edges of the radial coordinate of the desciptor.
	phiEdges	Vector containing the edges of the angular coordinate of the desciptor.

Note:: A point is in the bin i,j if its radial distance is between rhoEdges[i] and rhoEdges[i + 1] and its angular distance between phiEdges[j] and phiEdges[j + 1]

Definition at line 8 of file ShapeContext.cpp.

Member Function Documentation

Descriptor * ShapeContextGenerator::describe	(	const OrientedPoint2D &	_point,
		const LaserReading &	reading
	)			`[virtual]`

Abstract interface for generating a descriptors given a general point in $\mathcal{SO}(2)$ and a laser reading.

Implements DescriptorGenerator.

Definition at line 32 of file ShapeContext.cpp.

Descriptor * ShapeContextGenerator::describe	(	const InterestPoint &	_point,
		const LaserReading &	reading
	)			`[virtual]`

Abstract interface for generating a descriptors given an interest point and a laser reading.

Implements DescriptorGenerator.

Definition at line 28 of file ShapeContext.cpp.

unsigned int ShapeContextGenerator::getBinPhi ( ) const [inline]

Gets the number of bins in the angular coordinate of the descriptor.

Definition at line 129 of file ShapeContext.h.

unsigned int ShapeContextGenerator::getBinRho ( ) const [inline]

Gets the number of bins in the radial coordinate of the descriptor.

Definition at line 125 of file ShapeContext.h.

const HistogramDistance<double>* ShapeContextGenerator::getDistanceFunction ( ) const [inline]

Gets the distance function used to compare two descriptors

Definition at line 152 of file ShapeContext.h.

double ShapeContextGenerator::getMaxRho ( ) const [inline]

Gets the maximum distance for a point to be included in the descriptor.

Definition at line 121 of file ShapeContext.h.

double ShapeContextGenerator::getMinRho ( ) const [inline]

Gets the minimum distance for a point to be included in the descriptor.

Definition at line 117 of file ShapeContext.h.

const std::vector<double>& ShapeContextGenerator::getPhiEdges ( ) const [inline]

Gets the vector containing the edges of the angular coordinate of the desciptor.

Definition at line 137 of file ShapeContext.h.

const std::vector<double>& ShapeContextGenerator::getRhoEdges ( ) const [inline]

Gets the vector containing the edges of the radial coordinate of the desciptor.

Definition at line 133 of file ShapeContext.h.

void ShapeContextGenerator::setDistanceFunction ( const HistogramDistance< double > * distanceFunction ) [inline]

Sets the distance function used to compare two descriptors

Definition at line 156 of file ShapeContext.h.

void ShapeContextGenerator::setEdges	(	const std::vector< double > &	rhoEdges,
		const std::vector< double > &	phiEdges
	)			`[inline]`

Sets the radial and angular edges of the descriptor.

Parameters:

	rhoEdges	Vector containing the edges of the radial coordinate of the desciptor.
	phiEdges	Vector containing the edges of the angular coordinate of the desciptor.

Note:: A point is in the bin i,j if its radial distance is between rhoEdges[i] and rhoEdges[i + 1] and its angular distance between phiEdges[j] and phiEdges[j + 1]

Definition at line 148 of file ShapeContext.h.

void ShapeContextGenerator::setEdges	(	double	minRho,
		double	maxRho,
		unsigned int	binRho,
		unsigned int	binPhi
	)

Sets the radial and angular edges of the descriptor.

Parameters:

	minRho	The minimum distance for a point to be included in the descriptor.
	maxRho	The maximum distance for a point to be included in the descriptor.
	binRho	The number of bins in the radial coordinate of the descriptor.
	binPhi	The number of bins in the angular coordinate of the descriptor.

Definition at line 15 of file ShapeContext.cpp.

Member Data Documentation

const HistogramDistance<double>* ShapeContextGenerator::m_distanceFunction [protected]

The distance function used to compare two descriptors

Definition at line 162 of file ShapeContext.h.

std::vector<double> ShapeContextGenerator::m_phiEdges [protected]

The vector containing the edges of the angular coordinate of the desciptor.

Definition at line 161 of file ShapeContext.h.

std::vector<double> ShapeContextGenerator::m_rhoEdges [protected]

The vector containing the edges of the radial coordinate of the desciptor.

Definition at line 160 of file ShapeContext.h.

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

ShapeContextGenerator Class Reference

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation