pcl::gpu::people::trees Namespace Reference

Classes
struct	AttribLocation
struct	Node
class	Histogram
struct	HistogramPair
struct	SplitPoint
struct	LabeledAttrib
struct	LabeledFeature

Typedefs
using	Attrib = std::int16_t
using	Label = std::uint8_t
using	Label32 = std::uint32_t
using	Depth = std::uint16_t

Enumerations
enum	{ NUM_ATTRIBS = 2000 }
enum	{ NUM_LABELS = 32 }

Functions
std::ostream &	operator<< (std::ostream &os, const AttribLocation &aloc)
std::istream &	operator>> (std::istream &is, AttribLocation &aloc)
std::istream &	operator>> (std::istream &is, Node &n)
void	writeAttribLocs (const std::string &filename, const std::vector< AttribLocation > &alocs)
void	readAttribLocs (const std::string &filename, std::vector< AttribLocation > &alocs)
void	readThreshs (const std::string &filename, std::vector< Attrib > &threshs)
void	writeThreshs (const std::string &filename, const std::vector< Attrib > &threshs)
int	loadTree (std::istream &is, std::vector< Node > &tree, std::vector< Label > &leaves)
	The stream points to ascii data that goes: More...
int	loadTree (const std::string &filename, std::vector< Node > &tree, std::vector< Label > &leaves)
void	runThroughTree (int maxDepth, const std::vector< Node > &tree, const std::vector< Label > &leaves, int W, int H, const std::uint16_t *dmap, Label *lmap)
static std::uint64_t	numElements (const Histogram &h)
static double	entropy (const Histogram &h)
	This is cool. More...
static double	entropy_merged (const HistogramPair &hp)
	This is a little weird. More...
static double	informationGain (const HistogramPair &hp)
	This will compute the gain in information resulting from the split. More...
static std::ostream &	operator<< (std::ostream &os, const Histogram &h)
static std::istream &	operator>> (std::istream &is, Histogram &h)
static std::ostream &	operator<< (std::ostream &os, const HistogramPair &hp)
static std::istream &	operator>> (std::istream &is, HistogramPair &hp)
static void	writeLabeledFeatureVec (std::ostream &os, const std::vector< LabeledFeature > &lfs)
std::ostream &	operator<< (std::ostream &os, const SplitPoint &sp)
std::istream &	operator>> (std::istream &is, SplitPoint &sp)
void	writeInfoFile (const std::string &filename, int attribId, Attrib threshold, double gain, const HistogramPair &HP)
void	readInfoFile (const std::string &filename, int &attribId, Attrib &threshold, double &gain, HistogramPair &HP)

Variables
constexpr double	focal = 1000.

Typedef Documentation

Attrib

using pcl::gpu::people::trees::Attrib = typedef std::int16_t

Definition at line 72 of file tree.h.

Depth

using pcl::gpu::people::trees::Depth = typedef std::uint16_t

Definition at line 75 of file tree.h.

Label

using pcl::gpu::people::trees::Label = typedef std::uint8_t

Definition at line 73 of file tree.h.

Label32

using pcl::gpu::people::trees::Label32 = typedef std::uint32_t

Definition at line 74 of file tree.h.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
NUM_ATTRIBS

Definition at line 60 of file tree.h.

anonymous enum

anonymous enum

Enumerator
NUM_LABELS

Definition at line 61 of file tree.h.

Function Documentation

entropy()

static double pcl::gpu::people::trees::entropy ( const Histogram &  h )

inlinestatic

This is cool.

Definition at line 93 of file tree_train.h.

References numElements().

Referenced by entropy_merged(), and informationGain().

entropy_merged()

static double pcl::gpu::people::trees::entropy_merged ( const HistogramPair &  hp )

inlinestatic

This is a little weird.

. it will just compute the entropy of the merged histograms

Definition at line 108 of file tree_train.h.

References entropy(), pcl::gpu::people::trees::HistogramPair::h_false(), pcl::gpu::people::trees::HistogramPair::h_true(), and numElements().

Referenced by informationGain().

informationGain()

static double pcl::gpu::people::trees::informationGain ( const HistogramPair &  hp )

inlinestatic

This will compute the gain in information resulting from the split.

Definition at line 127 of file tree_train.h.

References entropy(), entropy_merged(), pcl::gpu::people::trees::HistogramPair::h_false(), pcl::gpu::people::trees::HistogramPair::h_true(), and numElements().

loadTree() [1/2]

int pcl::gpu::people::trees::loadTree	(	const std::string &	filename,
		std::vector< Node > &	tree,
		std::vector< Label > &	leaves
	)

loadTree() [2/2]

int pcl::gpu::people::trees::loadTree	(	std::istream &	is,
		std::vector< Node > &	tree,
		std::vector< Label > &	leaves
	)

The stream points to ascii data that goes:

TreeHeight du1 dv1 du2 dv2 thresh du1 dv1 du2 dv2 thresh ............ label label

there are 2^threeheight -1 nodes ( [du1 dv1 du2 dv2 thresh] lines ) there are 2^threeheight leaves ( [label] lines )

numElements()

static std::uint64_t pcl::gpu::people::trees::numElements ( const Histogram &  h )

inlinestatic

Definition at line 84 of file tree_train.h.

Referenced by entropy(), entropy_merged(), and informationGain().

operator<<() [1/4]

std::ostream& pcl::gpu::people::trees::operator<< ( std::ostream &  os, const AttribLocation &  aloc  )

inline

Definition at line 106 of file tree.h.

References pcl::gpu::people::trees::AttribLocation::du1, pcl::gpu::people::trees::AttribLocation::du2, pcl::gpu::people::trees::AttribLocation::dv1, and pcl::gpu::people::trees::AttribLocation::dv2.

operator<<() [2/4]

static std::ostream& pcl::gpu::people::trees::operator<< ( std::ostream &  os, const Histogram &  h  )

inlinestatic

Definition at line 144 of file tree_train.h.

operator<<() [3/4]

static std::ostream& pcl::gpu::people::trees::operator<< ( std::ostream &  os, const HistogramPair &  hp  )

inlinestatic

Definition at line 158 of file tree_train.h.

References pcl::gpu::people::trees::HistogramPair::h_false(), and pcl::gpu::people::trees::HistogramPair::h_true().

operator<<() [4/4]

std::ostream& pcl::gpu::people::trees::operator<< ( std::ostream &  os, const SplitPoint &  sp  )

inline

Definition at line 186 of file tree_train.h.

References pcl::gpu::people::trees::SplitPoint::attribId, and pcl::gpu::people::trees::SplitPoint::threshold.

operator>>() [1/5]

std::istream& pcl::gpu::people::trees::operator>> ( std::istream &  is, AttribLocation &  aloc  )

inline

Definition at line 107 of file tree.h.

References pcl::gpu::people::trees::AttribLocation::du1, pcl::gpu::people::trees::AttribLocation::du2, pcl::gpu::people::trees::AttribLocation::dv1, and pcl::gpu::people::trees::AttribLocation::dv2.

operator>>() [2/5]

static std::istream& pcl::gpu::people::trees::operator>> ( std::istream &  is, Histogram &  h  )

inlinestatic

Definition at line 150 of file tree_train.h.

operator>>() [3/5]

static std::istream& pcl::gpu::people::trees::operator>> ( std::istream &  is, HistogramPair &  hp  )

inlinestatic

Definition at line 164 of file tree_train.h.

References pcl::gpu::people::trees::HistogramPair::h_false(), and pcl::gpu::people::trees::HistogramPair::h_true().

operator>>() [4/5]

std::istream& pcl::gpu::people::trees::operator>> ( std::istream &  is, Node &  n  )

inline

Definition at line 108 of file tree.h.

References pcl::gpu::people::trees::Node::loc, and pcl::gpu::people::trees::Node::thresh.

operator>>() [5/5]

std::istream& pcl::gpu::people::trees::operator>> ( std::istream &  is, SplitPoint &  sp  )

inline

Definition at line 191 of file tree_train.h.

References pcl::gpu::people::trees::SplitPoint::attribId, and pcl::gpu::people::trees::SplitPoint::threshold.

readAttribLocs()

void pcl::gpu::people::trees::readAttribLocs	(	const std::string &	filename,
		std::vector< AttribLocation > &	alocs
	)

readInfoFile()

void pcl::gpu::people::trees::readInfoFile ( const std::string &  filename, int &  attribId, Attrib &  threshold, double &  gain, HistogramPair &  HP  )

inline

Definition at line 212 of file tree_train.h.

readThreshs()

void pcl::gpu::people::trees::readThreshs	(	const std::string &	filename,
		std::vector< Attrib > &	threshs
	)

runThroughTree()

void pcl::gpu::people::trees::runThroughTree	(	int	maxDepth,
		const std::vector< Node > &	tree,
		const std::vector< Label > &	leaves,
		int	W,
		int	H,
		const std::uint16_t *	dmap,
		Label *	lmap
	)

writeAttribLocs()

void pcl::gpu::people::trees::writeAttribLocs	(	const std::string &	filename,
		const std::vector< AttribLocation > &	alocs
	)

writeInfoFile()

void pcl::gpu::people::trees::writeInfoFile ( const std::string &  filename, int  attribId, Attrib  threshold, double  gain, const HistogramPair &  HP  )

inline

Definition at line 199 of file tree_train.h.

writeLabeledFeatureVec()

static void pcl::gpu::people::trees::writeLabeledFeatureVec ( std::ostream &  os, const std::vector< LabeledFeature > &  lfs  )

static

Definition at line 173 of file tree_train.h.

writeThreshs()

void pcl::gpu::people::trees::writeThreshs	(	const std::string &	filename,
		const std::vector< Attrib > &	threshs
	)

Variable Documentation

focal

constexpr double pcl::gpu::people::trees::focal = 1000.

constexpr

Definition at line 56 of file tree.h.