mrpt::pbmap::SemanticClustering Class Reference

Detailed Description

This class arranges the planes of a PbMap into groups according to a co-visibility measure The groups are divided using graph minimum normaized-cut (minNcut). The resulting groups can be used to represent semantic groups corresponding human identifiable structures such as rooms, or environments as an office. These groups of closely related planes can be used also for relocalization.

Definition at line 49 of file SemanticClustering.h.

#include <mrpt/pbmap/SemanticClustering.h>

Public Member Functions
	SemanticClustering (PbMap &mPbM)
int	evalPartition (std::set< unsigned > &observedPlanes)

Private Member Functions
void	buildProximityMatrix ()
void	buildCoVisibilityMatrix ()
void	arrangeNewGroups (std::vector< mrpt::vector_uint > &parts)

Private Attributes
unsigned	currentSemanticGroup
PbMap &	mPbMap
std::vector< unsigned >	neighborGroups
std::map< unsigned, std::vector< unsigned > >	groups
std::map< unsigned, std::vector< unsigned > >	vicinity
mrpt::math::CMatrix	connectivity_matrix
std::vector< unsigned >	planesVicinity_order

Friends
class	PbMapMaker

Constructor & Destructor Documentation

SemanticClustering()

mrpt::pbmap::SemanticClustering::SemanticClustering ( PbMap &  mPbM )

inline

Definition at line 371 of file SemanticClustering.h.

References DEFAULT_VECTOR_U, and vicinity.

Member Function Documentation

arrangeNewGroups()

void mrpt::pbmap::SemanticClustering::arrangeNewGroups ( std::vector< mrpt::vector_uint > &  parts )

inlineprivate

Arrange the semantic groups

Definition at line 192 of file SemanticClustering.h.

References DEFAULT_VECTOR_U, for(), groups, mPbMap, neighborGroups, planesVicinity_order, vicinity, and mrpt::pbmap::PbMap::vPlanes.

Referenced by evalPartition().

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buildCoVisibilityMatrix()

void mrpt::pbmap::SemanticClustering::buildCoVisibilityMatrix ( )

inlineprivate

Build the co-visibility matrix

Definition at line 127 of file SemanticClustering.h.

References connectivity_matrix, currentSemanticGroup, groups, min, mPbMap, neighborGroups, planesVicinity_order, vicinity, and mrpt::pbmap::PbMap::vPlanes.

buildProximityMatrix()

void mrpt::pbmap::SemanticClustering::buildProximityMatrix ( )

inlineprivate

Build the proximity matrix

Definition at line 70 of file SemanticClustering.h.

References connectivity_matrix, currentSemanticGroup, groups, mPbMap, neighborGroups, planesVicinity_order, vicinity, and mrpt::pbmap::PbMap::vPlanes.

Referenced by evalPartition().

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evalPartition()

int mrpt::pbmap::SemanticClustering::evalPartition ( std::set< unsigned > &  observedPlanes )

inline

Evaluate the partition of the current semantic groups into new ones with minNcut

Definition at line 380 of file SemanticClustering.h.

References arrangeNewGroups(), buildProximityMatrix(), connectivity_matrix, currentSemanticGroup, for(), groups, mPbMap, neighborGroups, mrpt::graphs::CGraphPartitioner< GRAPH_MATRIX, num_t >::RecursiveSpectralPartition(), and mrpt::pbmap::PbMap::vPlanes.

Referenced by mrpt::pbmap::PbMapMaker::run().

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Friends And Related Function Documentation

PbMapMaker

friend class PbMapMaker

friend

Definition at line 368 of file SemanticClustering.h.

Member Data Documentation

connectivity_matrix

mrpt::math::CMatrix mrpt::pbmap::SemanticClustering::connectivity_matrix

private

Definition at line 63 of file SemanticClustering.h.

Referenced by buildCoVisibilityMatrix(), buildProximityMatrix(), and evalPartition().

currentSemanticGroup

unsigned mrpt::pbmap::SemanticClustering::currentSemanticGroup

private

Definition at line 52 of file SemanticClustering.h.

Referenced by buildCoVisibilityMatrix(), buildProximityMatrix(), mrpt::pbmap::PbMapMaker::detectPlanesCloud(), and evalPartition().

groups

std::map<unsigned, std::vector<unsigned> > mrpt::pbmap::SemanticClustering::groups

private

Definition at line 58 of file SemanticClustering.h.

Referenced by arrangeNewGroups(), buildCoVisibilityMatrix(), buildProximityMatrix(), mrpt::pbmap::PbMapMaker::detectPlanesCloud(), and evalPartition().

mPbMap

PbMap& mrpt::pbmap::SemanticClustering::mPbMap

private

Definition at line 54 of file SemanticClustering.h.

Referenced by arrangeNewGroups(), buildCoVisibilityMatrix(), buildProximityMatrix(), and evalPartition().

neighborGroups

std::vector<unsigned> mrpt::pbmap::SemanticClustering::neighborGroups

private

Definition at line 56 of file SemanticClustering.h.

Referenced by arrangeNewGroups(), buildCoVisibilityMatrix(), buildProximityMatrix(), and evalPartition().

planesVicinity_order

std::vector<unsigned> mrpt::pbmap::SemanticClustering::planesVicinity_order

private

Definition at line 65 of file SemanticClustering.h.

Referenced by arrangeNewGroups(), buildCoVisibilityMatrix(), and buildProximityMatrix().

vicinity

std::map<unsigned, std::vector<unsigned> > mrpt::pbmap::SemanticClustering::vicinity

private

Definition at line 61 of file SemanticClustering.h.

Referenced by arrangeNewGroups(), buildCoVisibilityMatrix(), buildProximityMatrix(), and SemanticClustering().