boofcv.alg.bow

Class ClusterVisualWords

java.lang.Object

boofcv.alg.bow.ClusterVisualWords

public class ClusterVisualWords
extends java.lang.Object

Finds clusters of TupleDesc_F64 which can be used to identify frequent features, a.k.a words. Internally it uses ComputeClusters and simply extracts the inner array from the tuple.

Constructor Summary

Constructors

Constructor and Description
ClusterVisualWords(org.ddogleg.clustering.ComputeClusters<double[]> computeClusters, int featureDOF, long randomSeed) Constructor which configures the cluster finder.

Method Summary

Modifier and Type	Method and Description
void	addReference(boofcv.struct.feature.TupleDesc_F64 feature) Add a feature to the list.
org.ddogleg.clustering.AssignCluster<double[]>	getAssignment() Returns a transform from point to cluster.
void	process(int numberOfWords) Clusters the list of features into the specified number of words

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ClusterVisualWords

public ClusterVisualWords(org.ddogleg.clustering.ComputeClusters<double[]> computeClusters,
                          int featureDOF,
                          long randomSeed)

Constructor which configures the cluster finder.

Parameters:

computeClusters - Cluster finding algorithm.

featureDOF - Number of elements in the feature

randomSeed - Seed for random number generator

Method Detail

addReference

public void addReference(boofcv.struct.feature.TupleDesc_F64 feature)

Add a feature to the list.

Parameters:

feature - image feature. Reference to inner array is saved.

process

public void process(int numberOfWords)

Clusters the list of features into the specified number of words

Parameters:

numberOfWords - Number of words/clusters it should find

getAssignment

public org.ddogleg.clustering.AssignCluster<double[]> getAssignment()

Returns a transform from point to cluster.