Visual Servoing Platform version 3.7.0
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vpFeatureLuminanceMapping Class Reference

#include <vpFeatureLuminanceMapping.h>

Inheritance diagram for vpFeatureLuminanceMapping:

Public Types

enum  vpBasicFeatureSelect { FEATURE_ALL = 0xffff }
enum  vpBasicFeatureDeallocatorType { user , vpServo }

Public Member Functions

 vpFeatureLuminanceMapping (const vpCameraParameters &cam, unsigned int h, unsigned int w, double Z, const std::shared_ptr< vpLuminanceMapping > mapping)
 vpFeatureLuminanceMapping (const vpFeatureLuminance &luminance, std::shared_ptr< vpLuminanceMapping > mapping)
void init () VP_OVERRIDE
void init (const vpCameraParameters &cam, unsigned int h, unsigned int w, double Z, std::shared_ptr< vpLuminanceMapping > mapping)
void init (const vpFeatureLuminance &luminance, std::shared_ptr< vpLuminanceMapping > mapping)
 vpFeatureLuminanceMapping (const vpFeatureLuminanceMapping &f)
vpFeatureLuminanceMappingoperator= (const vpFeatureLuminanceMapping &f)
vpFeatureLuminanceMappingduplicate () const VP_OVERRIDE
virtual ~vpFeatureLuminanceMapping ()=default
void buildFrom (vpImage< unsigned char > &I)
void display (const vpCameraParameters &, const vpImage< unsigned char > &, const vpColor &=vpColor::green, unsigned int=1) const VP_OVERRIDE
void display (const vpCameraParameters &, const vpImage< vpRGBa > &, const vpColor &=vpColor::green, unsigned int=1) const VP_OVERRIDE
vpColVector error (const vpBasicFeature &s_star, unsigned int select=FEATURE_ALL) VP_OVERRIDE
void error (const vpBasicFeature &s_star, vpColVector &e)
vpMatrix interaction (unsigned int select=FEATURE_ALL) VP_OVERRIDE
void interaction (vpMatrix &L)
void print (unsigned int select=FEATURE_ALL) const VP_OVERRIDE
vpFeatureLuminancegetLuminanceFeature ()
std::shared_ptr< vpLuminanceMapping > & getMapping ()

Static Public Attributes

static const unsigned int FEATURE_LINE [32]

Protected Attributes

vpColVector s
unsigned int dim_s
bool * flags
unsigned int nbParameters

Inherited functionalities from vpBasicFeature

unsigned int dimension_s ()
vpColVector get_s (unsigned int select=FEATURE_ALL) const
vpBasicFeatureDeallocatorType getDeallocate ()
unsigned int getDimension (unsigned int select=FEATURE_ALL) const
virtual double operator[] (unsigned int i) const
void setDeallocate (vpBasicFeatureDeallocatorType d)
void setFlags ()
vpBasicFeatureDeallocatorType deallocate
static unsigned int selectAll ()
void resetFlags ()

Detailed Description

Class to combine luminance features (photometric servoing).

with a mapping $ f(\mathbf{I}) $ that projects an image to a low dimensional representation $ \mathbf{s} $ (see vpLuminanceMapping::map). The interaction matrix of $ \mathbf{s} $ is computed as a function of $ \mathbf{I}, \mathbf{L_I} $ (see vpLuminanceMapping::interaction)

The mapping $ f $ is applied to the center crop of the image, where the interaction matrix of the pixels can be computed (see vpFeatureLuminance::getBorder).

See also
vpLuminanceDCT, vpLuminancePCA, vpFeatureLuminance
Examples
photometricMappingVisualServoing.cpp.

Definition at line 387 of file vpFeatureLuminanceMapping.h.

Member Enumeration Documentation

◆ vpBasicFeatureDeallocatorType

Indicates who should deallocate the feature.

Enumerator
user 
vpServo 

Definition at line 86 of file vpBasicFeature.h.

◆ vpBasicFeatureSelect

Enumerator
FEATURE_ALL 

Definition at line 81 of file vpBasicFeature.h.

Constructor & Destructor Documentation

◆ vpFeatureLuminanceMapping() [1/3]

vpFeatureLuminanceMapping::vpFeatureLuminanceMapping ( const vpCameraParameters & cam,
unsigned int h,
unsigned int w,
double Z,
const std::shared_ptr< vpLuminanceMapping > mapping )

Definition at line 500 of file vpFeatureLuminanceMapping.cpp.

References init().

Referenced by duplicate(), operator=(), and vpFeatureLuminanceMapping().

◆ vpFeatureLuminanceMapping() [2/3]

vpFeatureLuminanceMapping::vpFeatureLuminanceMapping ( const vpFeatureLuminance & luminance,
std::shared_ptr< vpLuminanceMapping > mapping )

Definition at line 506 of file vpFeatureLuminanceMapping.cpp.

References init().

◆ vpFeatureLuminanceMapping() [3/3]

vpFeatureLuminanceMapping::vpFeatureLuminanceMapping ( const vpFeatureLuminanceMapping & f)

◆ ~vpFeatureLuminanceMapping()

virtual vpFeatureLuminanceMapping::~vpFeatureLuminanceMapping ( )
virtualdefault

References buildFrom().

Member Function Documentation

◆ buildFrom()

void vpFeatureLuminanceMapping::buildFrom ( vpImage< unsigned char > & I)

Definition at line 555 of file vpFeatureLuminanceMapping.cpp.

References vpBasicFeature::s.

Referenced by ~vpFeatureLuminanceMapping().

◆ dimension_s()

unsigned int vpBasicFeature::dimension_s ( )
inlineinherited

Return the dimension of the feature vector $\bf s$.

Definition at line 108 of file vpBasicFeature.h.

References dim_s.

◆ display() [1/2]

void vpFeatureLuminanceMapping::display ( const vpCameraParameters & ,
const vpImage< unsigned char > & ,
const vpColor & = vpColor::green,
unsigned int = 1 ) const
inlinevirtual

Implements vpBasicFeature.

Definition at line 404 of file vpFeatureLuminanceMapping.h.

References vpColor::green.

◆ display() [2/2]

void vpFeatureLuminanceMapping::display ( const vpCameraParameters & ,
const vpImage< vpRGBa > & ,
const vpColor & = vpColor::green,
unsigned int = 1 ) const
inlinevirtual

Implements vpBasicFeature.

Definition at line 407 of file vpFeatureLuminanceMapping.h.

References vpColor::green.

◆ duplicate()

vpFeatureLuminanceMapping * vpFeatureLuminanceMapping::duplicate ( ) const
virtual

Implements vpBasicFeature.

Definition at line 550 of file vpFeatureLuminanceMapping.cpp.

References vpFeatureLuminanceMapping().

◆ error() [1/2]

vpColVector vpFeatureLuminanceMapping::error ( const vpBasicFeature & s_star,
unsigned int select = FEATURE_ALL )
virtual

Compute the error between two visual features from a subset of the possible features.

Reimplemented from vpBasicFeature.

Definition at line 562 of file vpFeatureLuminanceMapping.cpp.

References vpBasicFeature::dim_s, error(), vpBasicFeature::FEATURE_ALL, vpException::notImplementedError, and vpBasicFeature::vpBasicFeature().

Referenced by error().

◆ error() [2/2]

void vpFeatureLuminanceMapping::error ( const vpBasicFeature & s_star,
vpColVector & e )

◆ get_s()

vpColVector vpBasicFeature::get_s ( unsigned int select = FEATURE_ALL) const
inherited

◆ getDeallocate()

vpBasicFeatureDeallocatorType vpBasicFeature::getDeallocate ( )
inlineinherited

Definition at line 121 of file vpBasicFeature.h.

References deallocate.

◆ getDimension()

unsigned int vpBasicFeature::getDimension ( unsigned int select = FEATURE_ALL) const
inherited

Get the feature vector dimension.

Definition at line 100 of file vpBasicFeature.cpp.

References dim_s, FEATURE_LINE, and s.

◆ getLuminanceFeature()

vpFeatureLuminance & vpFeatureLuminanceMapping::getLuminanceFeature ( )
inline

Definition at line 419 of file vpFeatureLuminanceMapping.h.

◆ getMapping()

std::shared_ptr< vpLuminanceMapping > & vpFeatureLuminanceMapping::getMapping ( )
inline

Definition at line 420 of file vpFeatureLuminanceMapping.h.

◆ init() [1/3]

void vpFeatureLuminanceMapping::init ( void )
virtual

◆ init() [2/3]

void vpFeatureLuminanceMapping::init ( const vpCameraParameters & cam,
unsigned int h,
unsigned int w,
double Z,
std::shared_ptr< vpLuminanceMapping > mapping )

Definition at line 522 of file vpFeatureLuminanceMapping.cpp.

References vpBasicFeature::dim_s, and vpBasicFeature::s.

◆ init() [3/3]

void vpFeatureLuminanceMapping::init ( const vpFeatureLuminance & luminance,
std::shared_ptr< vpLuminanceMapping > mapping )

Definition at line 533 of file vpFeatureLuminanceMapping.cpp.

References vpBasicFeature::dim_s, and vpBasicFeature::s.

◆ interaction() [1/2]

vpMatrix vpFeatureLuminanceMapping::interaction ( unsigned int select = FEATURE_ALL)
virtual

Compute the interaction matrix from a subset of the possible features.

Implements vpBasicFeature.

Definition at line 580 of file vpFeatureLuminanceMapping.cpp.

References vpBasicFeature::dim_s, vpBasicFeature::FEATURE_ALL, interaction(), and vpException::notImplementedError.

Referenced by interaction().

◆ interaction() [2/2]

void vpFeatureLuminanceMapping::interaction ( vpMatrix & L)

◆ operator=()

vpFeatureLuminanceMapping & vpFeatureLuminanceMapping::operator= ( const vpFeatureLuminanceMapping & f)

◆ operator[]()

virtual double vpBasicFeature::operator[] ( unsigned int i) const
inlinevirtualinherited

Return element i in the state vector (usage : x = s[i] ).

Definition at line 128 of file vpBasicFeature.h.

References s.

◆ print()

void vpFeatureLuminanceMapping::print ( unsigned int select = FEATURE_ALL) const
virtual

Print the name of the feature.

Implements vpBasicFeature.

Definition at line 596 of file vpFeatureLuminanceMapping.cpp.

References vpBasicFeature::s.

◆ resetFlags()

◆ selectAll()

unsigned int vpBasicFeature::selectAll ( )
inlinestaticinherited

Select all the features.

Examples
testPoint.cpp.

Definition at line 140 of file vpBasicFeature.h.

References FEATURE_ALL.

◆ setDeallocate()

void vpBasicFeature::setDeallocate ( vpBasicFeatureDeallocatorType d)
inlineinherited

Definition at line 135 of file vpBasicFeature.h.

References deallocate.

Referenced by vpServo::addFeature().

◆ setFlags()

void vpBasicFeature::setFlags ( )
inherited

Set feature flags to true to prevent warning when re-computing the interaction matrix without having updated the feature.

Definition at line 140 of file vpBasicFeature.cpp.

References flags, and nbParameters.

Member Data Documentation

◆ deallocate

◆ dim_s

unsigned int vpBasicFeature::dim_s
protectedinherited

Dimension of the visual feature.

Definition at line 92 of file vpBasicFeature.h.

Referenced by dimension_s(), vpFeatureMoment::duplicate(), vpGenericFeature::duplicate(), error(), vpFeatureLuminance::error(), vpFeatureLuminanceMapping::error(), vpFeatureLuminanceMapping::error(), vpGenericFeature::error(), vpGenericFeature::error(), get_s(), vpGenericFeature::get_s(), vpGenericFeature::get_s(), vpGenericFeature::get_s(), vpGenericFeature::get_s(), getDimension(), vpFeatureMoment::getDimension(), vpFeatureDepth::init(), vpFeatureEllipse::init(), vpFeatureLine::init(), vpFeatureLuminance::init(), vpFeatureLuminanceMapping::init(), vpFeatureLuminanceMapping::init(), vpFeatureLuminanceMapping::init(), vpFeatureMoment::init(), vpFeaturePoint3D::init(), vpFeaturePoint::init(), vpFeaturePointPolar::init(), vpFeatureSegment::init(), vpFeatureThetaU::init(), vpFeatureTranslation::init(), vpFeatureVanishingPoint::init(), vpFeatureLuminance::interaction(), vpFeatureLuminanceMapping::interaction(), vpFeatureLuminanceMapping::interaction(), vpFeatureMoment::interaction(), vpGenericFeature::interaction(), operator=(), vpFeatureLuminance::operator=(), vpFeatureLuminanceMapping::operator=(), vpFeatureMoment::print(), vpGenericFeature::print(), vpGenericFeature::set_s(), vpGenericFeature::set_s(), vpGenericFeature::set_s(), vpGenericFeature::set_s(), vpGenericFeature::setError(), vpGenericFeature::setInteractionMatrix(), vpFeatureMoment::update(), vpBasicFeature(), vpBasicFeature(), vpFeatureLuminance::vpFeatureLuminance(), and vpGenericFeature::vpGenericFeature().

◆ FEATURE_LINE

BEGIN_VISP_NAMESPACE const unsigned int vpBasicFeature::FEATURE_LINE
staticinherited
Initial value:
= {
static_cast<unsigned int>(1 << 0), static_cast<unsigned int>(1 << 1), static_cast<unsigned int>(1 << 2), static_cast<unsigned int>(1 << 3),
static_cast<unsigned int>(1 << 4), static_cast<unsigned int>(1 << 5), static_cast<unsigned int>(1 << 6), static_cast<unsigned int>(1 << 7),
static_cast<unsigned int>(1 << 8), static_cast<unsigned int>(1 << 9), static_cast<unsigned int>(1 << 10), static_cast<unsigned int>(1 << 11),
static_cast<unsigned int>(1 << 12), static_cast<unsigned int>(1 << 13), static_cast<unsigned int>(1 << 14), static_cast<unsigned int>(1 << 15),
static_cast<unsigned int>(1 << 16), static_cast<unsigned int>(1 << 17), static_cast<unsigned int>(1 << 18), static_cast<unsigned int>(1 << 19),
static_cast<unsigned int>(1 << 20), static_cast<unsigned int>(1 << 21), static_cast<unsigned int>(1 << 22), static_cast<unsigned int>(1 << 23),
static_cast<unsigned int>(1 << 24), static_cast<unsigned int>(1 << 25), static_cast<unsigned int>(1 << 26), static_cast<unsigned int>(1 << 27),
static_cast<unsigned int>(1 << 28), static_cast<unsigned int>(1 << 29), static_cast<unsigned int>(1 << 30), static_cast<unsigned int>(1 << 31) }

Definition at line 45 of file vpBasicFeature.h.

Referenced by error(), vpGenericFeature::error(), vpGenericFeature::error(), get_s(), getDimension(), vpFeatureMoment::getDimension(), vpFeatureMoment::interaction(), vpGenericFeature::interaction(), vpFeatureMoment::print(), vpGenericFeature::print(), vpFeatureEllipse::select_n02(), vpFeatureEllipse::select_n11(), vpFeatureEllipse::select_n20(), vpFeatureSegment::selectAlpha(), vpFeatureVanishingPoint::selectAlpha(), vpFeatureVanishingPoint::selectAtanOneOverRho(), vpFeatureSegment::selectL(), vpFeatureEllipse::selectMu02(), vpFeatureEllipse::selectMu11(), vpFeatureEllipse::selectMu20(), vpFeatureVanishingPoint::selectOneOverRho(), vpFeatureLine::selectRho(), vpFeaturePointPolar::selectRho(), vpFeatureLine::selectTheta(), vpFeaturePointPolar::selectTheta(), vpFeatureThetaU::selectTUx(), vpFeatureThetaU::selectTUy(), vpFeatureThetaU::selectTUz(), vpFeatureTranslation::selectTx(), vpFeatureTranslation::selectTy(), vpFeatureTranslation::selectTz(), vpFeatureEllipse::selectX(), vpFeaturePoint3D::selectX(), vpFeaturePoint::selectX(), vpFeatureVanishingPoint::selectX(), vpFeatureSegment::selectXc(), vpFeatureEllipse::selectY(), vpFeaturePoint3D::selectY(), vpFeaturePoint::selectY(), vpFeatureVanishingPoint::selectY(), vpFeatureSegment::selectYc(), and vpFeaturePoint3D::selectZ().

◆ flags

bool* vpBasicFeature::flags
protectedinherited

Ensure that all the parameters needed to compute the interaction matrix are set.

Definition at line 96 of file vpBasicFeature.h.

Referenced by vpFeatureDepth::buildFrom(), vpFeatureEllipse::buildFrom(), vpFeatureEllipse::buildFrom(), vpFeatureLine::buildFrom(), vpFeatureLine::buildFrom(), vpFeaturePoint3D::buildFrom(), vpFeaturePoint3D::buildFrom(), vpFeaturePoint::buildFrom(), vpFeaturePointPolar::buildFrom(), vpFeatureThetaU::buildFrom(), vpFeatureTranslation::buildFrom(), vpFeatureMoment::duplicate(), vpFeatureDepth::init(), vpFeatureEllipse::init(), vpFeatureLine::init(), vpFeatureLuminance::init(), vpFeatureMoment::init(), vpFeaturePoint3D::init(), vpFeaturePoint::init(), vpFeaturePointPolar::init(), vpFeatureSegment::init(), vpFeatureThetaU::init(), vpFeatureTranslation::init(), vpFeatureVanishingPoint::init(), vpFeatureDepth::interaction(), vpFeatureEllipse::interaction(), vpFeatureLine::interaction(), vpFeaturePoint3D::interaction(), vpFeaturePoint::interaction(), vpFeaturePointPolar::interaction(), vpFeatureSegment::interaction(), vpFeatureThetaU::interaction(), vpFeatureTranslation::interaction(), vpFeatureVanishingPoint::interaction(), operator=(), resetFlags(), vpFeaturePointPolar::set_rho(), vpFeaturePointPolar::set_rhoThetaZ(), vpFeaturePointPolar::set_theta(), vpFeatureThetaU::set_TUx(), vpFeatureThetaU::set_TUy(), vpFeatureThetaU::set_TUz(), vpFeaturePoint3D::set_X(), vpFeatureDepth::set_x(), vpFeatureEllipse::set_x(), vpFeaturePoint::set_x(), vpFeatureVanishingPoint::set_x(), vpFeatureEllipse::set_xy(), vpFeaturePoint3D::set_XYZ(), vpFeaturePoint::set_xyZ(), vpFeatureDepth::set_xyZLogZoverZstar(), vpFeaturePoint3D::set_Y(), vpFeatureDepth::set_y(), vpFeatureEllipse::set_y(), vpFeaturePoint::set_y(), vpFeatureVanishingPoint::set_y(), vpFeatureDepth::set_Z(), vpFeatureLuminance::set_Z(), vpFeaturePoint3D::set_Z(), vpFeaturePoint::set_Z(), vpFeaturePointPolar::set_Z(), vpFeatureEllipse::setABC(), vpFeatureLine::setABCD(), vpFeatureSegment::setAlpha(), vpFeatureVanishingPoint::setAlpha(), vpFeatureVanishingPoint::setAtanOneOverRho(), setFlags(), vpFeatureSegment::setL(), vpFeatureEllipse::setMoments(), vpFeatureVanishingPoint::setOneOverRho(), vpFeatureLine::setRhoTheta(), vpFeatureSegment::setXc(), vpFeatureSegment::setYc(), vpFeatureSegment::setZ1(), vpFeatureSegment::setZ2(), vpFeatureMoment::update(), vpBasicFeature(), vpBasicFeature(), vpFeatureLuminance::vpFeatureLuminance(), and ~vpBasicFeature().

◆ nbParameters

◆ s

vpColVector vpBasicFeature::s
protectedinherited

State of the visual feature.

Definition at line 90 of file vpBasicFeature.h.

Referenced by vpFeatureDepth::buildFrom(), vpFeatureEllipse::buildFrom(), vpFeatureEllipse::buildFrom(), vpFeatureLine::buildFrom(), vpFeatureLine::buildFrom(), vpFeatureLuminance::buildFrom(), vpFeatureLuminanceMapping::buildFrom(), vpFeaturePoint3D::buildFrom(), vpFeaturePoint3D::buildFrom(), vpFeaturePoint::buildFrom(), vpFeaturePointPolar::buildFrom(), vpFeatureThetaU::buildFrom(), vpFeatureTranslation::buildFrom(), vpFeatureEllipse::display(), vpFeatureEllipse::display(), vpFeatureMoment::duplicate(), error(), vpFeatureDepth::error(), vpFeatureEllipse::error(), vpFeatureLine::error(), vpFeatureLuminance::error(), vpFeatureLuminanceMapping::error(), vpFeatureMomentAlpha::error(), vpFeaturePoint3D::error(), vpFeaturePoint::error(), vpFeaturePointPolar::error(), vpFeatureThetaU::error(), vpFeatureTranslation::error(), vpFeatureVanishingPoint::error(), vpGenericFeature::error(), vpGenericFeature::error(), vpFeatureDepth::get_LogZoverZstar(), vpFeatureEllipse::get_n02(), vpFeatureEllipse::get_n11(), vpFeatureEllipse::get_n20(), vpFeaturePointPolar::get_rho(), get_s(), vpGenericFeature::get_s(), vpGenericFeature::get_s(), vpGenericFeature::get_s(), vpGenericFeature::get_s(), vpFeaturePointPolar::get_theta(), vpFeatureThetaU::get_TUx(), vpFeatureThetaU::get_TUy(), vpFeatureThetaU::get_TUz(), vpFeatureTranslation::get_Tx(), vpFeatureTranslation::get_Ty(), vpFeatureTranslation::get_Tz(), vpFeaturePoint3D::get_X(), vpFeatureEllipse::get_x(), vpFeaturePoint::get_x(), vpFeatureVanishingPoint::get_x(), vpFeaturePoint3D::get_Y(), vpFeatureEllipse::get_y(), vpFeaturePoint::get_y(), vpFeatureVanishingPoint::get_y(), vpFeaturePoint3D::get_Z(), vpFeatureSegment::getAlpha(), vpFeatureVanishingPoint::getAlpha(), vpFeatureVanishingPoint::getAtanOneOverRho(), getDimension(), vpFeatureSegment::getL(), vpFeatureEllipse::getMu02(), vpFeatureEllipse::getMu11(), vpFeatureEllipse::getMu20(), vpFeatureVanishingPoint::getOneOverRho(), vpFeatureLine::getRho(), vpFeatureLine::getTheta(), vpFeatureSegment::getXc(), vpFeatureSegment::getYc(), vpFeatureDepth::init(), vpFeatureEllipse::init(), vpFeatureLine::init(), vpFeatureLuminance::init(), vpFeatureLuminanceMapping::init(), vpFeatureLuminanceMapping::init(), vpFeatureMoment::init(), vpFeaturePoint3D::init(), vpFeaturePoint::init(), vpFeaturePointPolar::init(), vpFeatureSegment::init(), vpFeatureThetaU::init(), vpFeatureTranslation::init(), vpFeatureVanishingPoint::init(), vpGenericFeature::init(), vpFeatureEllipse::interaction(), vpFeatureLine::interaction(), vpFeatureLuminanceMapping::interaction(), vpFeatureThetaU::interaction(), vpFeatureTranslation::interaction(), operator=(), vpFeatureLuminance::operator=(), vpFeatureLuminanceMapping::operator=(), operator[](), vpFeatureEllipse::print(), vpFeatureLine::print(), vpFeatureLuminanceMapping::print(), vpFeatureMoment::print(), vpFeatureSegment::print(), vpFeatureThetaU::print(), vpFeatureTranslation::print(), vpGenericFeature::print(), vpFeatureDepth::set_LogZoverZstar(), vpFeaturePointPolar::set_rho(), vpGenericFeature::set_s(), vpGenericFeature::set_s(), vpGenericFeature::set_s(), vpGenericFeature::set_s(), vpFeaturePointPolar::set_theta(), vpFeatureThetaU::set_TUx(), vpFeatureThetaU::set_TUy(), vpFeatureThetaU::set_TUz(), vpFeatureTranslation::set_Tx(), vpFeatureTranslation::set_Ty(), vpFeatureTranslation::set_Tz(), vpFeaturePoint3D::set_X(), vpFeatureEllipse::set_x(), vpFeaturePoint::set_x(), vpFeatureVanishingPoint::set_x(), vpFeatureEllipse::set_xy(), vpFeaturePoint3D::set_Y(), vpFeatureEllipse::set_y(), vpFeaturePoint::set_y(), vpFeatureVanishingPoint::set_y(), vpFeaturePoint3D::set_Z(), vpFeatureSegment::setAlpha(), vpFeatureVanishingPoint::setAlpha(), vpFeatureVanishingPoint::setAtanOneOverRho(), vpFeatureSegment::setL(), vpFeatureEllipse::setMoments(), vpFeatureVanishingPoint::setOneOverRho(), vpFeatureLine::setRhoTheta(), vpFeatureSegment::setXc(), vpFeatureSegment::setYc(), vpFeatureMoment::update(), vpBasicFeature(), vpBasicFeature(), and vpGenericFeature::vpGenericFeature().