vt::TreeBuilder< Feature, Distance, FeatureAllocator > Class Template Reference

Class for building a new vocabulary by hierarchically clustering a set of training features. More...

#include <tree_builder.h>

List of all members.

Public Types
typedef std::vector< Feature, FeatureAllocator >	FeatureVector
typedef SimpleKmeans< Feature, Distance, FeatureAllocator >	Kmeans
typedef MutableVocabularyTree < Feature, Distance, FeatureAllocator >	Tree
Public Member Functions
void	build (const FeatureVector &training_features, uint32_t k, uint32_t levels)
	Build a new vocabulary tree.
Kmeans &	kmeans ()
	Get the k-means clusterer.
const Kmeans &	kmeans () const
	Get the k-means clusterer.
const Tree &	tree () const
	Get the built vocabulary tree.
	TreeBuilder (const Feature &zero=Feature(), Distance d=Distance())
	Constructor.
Protected Attributes
Kmeans	kmeans_
Tree	tree_
Feature	zero_

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Detailed Description

template<class Feature, class Distance = distance::L2<Feature>, class FeatureAllocator = typename DefaultAllocator<Feature>::type>
class vt::TreeBuilder< Feature, Distance, FeatureAllocator >

Class for building a new vocabulary by hierarchically clustering a set of training features.

Definition at line 17 of file tree_builder.h.

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Member Typedef Documentation

template<class Feature, class Distance = distance::L2<Feature>, class FeatureAllocator = typename DefaultAllocator<Feature>::type>

typedef std::vector<Feature, FeatureAllocator> vt::TreeBuilder< Feature, Distance, FeatureAllocator >::FeatureVector

Definition at line 22 of file tree_builder.h.

template<class Feature, class Distance = distance::L2<Feature>, class FeatureAllocator = typename DefaultAllocator<Feature>::type>

typedef SimpleKmeans<Feature, Distance, FeatureAllocator> vt::TreeBuilder< Feature, Distance, FeatureAllocator >::Kmeans

Definition at line 21 of file tree_builder.h.

template<class Feature, class Distance = distance::L2<Feature>, class FeatureAllocator = typename DefaultAllocator<Feature>::type>

typedef MutableVocabularyTree<Feature, Distance, FeatureAllocator> vt::TreeBuilder< Feature, Distance, FeatureAllocator >::Tree

Definition at line 20 of file tree_builder.h.

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Constructor & Destructor Documentation

template<class Feature , class Distance , class FeatureAllocator >

vt::TreeBuilder< Feature, Distance, FeatureAllocator >::TreeBuilder	(	const Feature &	zero = Feature(),
		Distance	d = Distance()
	)

Constructor.

Parameters:

zero	Object representing zero in the feature space
d	Functor for calculating squared distance

Definition at line 59 of file tree_builder.h.

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Member Function Documentation

template<class Feature , class Distance , class FeatureAllocator >

void vt::TreeBuilder< Feature, Distance, FeatureAllocator >::build	(	const FeatureVector &	training_features,
		uint32_t	k,
		uint32_t	levels
	)

Build a new vocabulary tree.

The number of words in the resulting vocabulary is at most k ^ levels.

Parameters:

training_features	The set of training features to cluster.
k	The branching factor, or max children of any node.
levels	The number of levels in the tree.

Definition at line 67 of file tree_builder.h.

template<class Feature, class Distance = distance::L2<Feature>, class FeatureAllocator = typename DefaultAllocator<Feature>::type>

Kmeans& vt::TreeBuilder< Feature, Distance, FeatureAllocator >::kmeans

(

)

[inline]

Get the k-means clusterer.

Definition at line 47 of file tree_builder.h.

template<class Feature, class Distance = distance::L2<Feature>, class FeatureAllocator = typename DefaultAllocator<Feature>::type>

const Kmeans& vt::TreeBuilder< Feature, Distance, FeatureAllocator >::kmeans

(

)

const [inline]

Get the k-means clusterer.

Definition at line 49 of file tree_builder.h.

template<class Feature, class Distance = distance::L2<Feature>, class FeatureAllocator = typename DefaultAllocator<Feature>::type>

const Tree& vt::TreeBuilder< Feature, Distance, FeatureAllocator >::tree

(

)

const [inline]

Get the built vocabulary tree.

Definition at line 44 of file tree_builder.h.

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Member Data Documentation

template<class Feature, class Distance = distance::L2<Feature>, class FeatureAllocator = typename DefaultAllocator<Feature>::type>

Kmeans vt::TreeBuilder< Feature, Distance, FeatureAllocator >::kmeans_ [protected]

Definition at line 53 of file tree_builder.h.

template<class Feature, class Distance = distance::L2<Feature>, class FeatureAllocator = typename DefaultAllocator<Feature>::type>

Tree vt::TreeBuilder< Feature, Distance, FeatureAllocator >::tree_ [protected]

Definition at line 52 of file tree_builder.h.

template<class Feature, class Distance = distance::L2<Feature>, class FeatureAllocator = typename DefaultAllocator<Feature>::type>

Feature vt::TreeBuilder< Feature, Distance, FeatureAllocator >::zero_ [protected]

Definition at line 54 of file tree_builder.h.

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

• tree_builder.h