Catalano.MachineLearning.FeatureEncoder

Class Vlad

java.lang.Object

Catalano.MachineLearning.FeatureEncoder.Vlad

All Implemented Interfaces:

IFeatureEncoder

public class Vlad
extends java.lang.Object
implements IFeatureEncoder

Vlad (Vector Locally Agreggate Descriptors).

Constructor Summary

Constructors

Constructor and Description
Vlad(double[][] centroids) Initializes a new instance of the Vlad class.
Vlad(double[][] centroids, boolean normalize) Initializes a new instance of the Vlad class.
Vlad(double[][] centroids, boolean normalize, boolean softmax) Initializes a new instance of the Vlad class.
Vlad(double[][] centroids, boolean normalize, boolean softmax, IFeatureScaling scaleVlad) Initializes a new instance of the Vlad class.

Method Summary

Modifier and Type	Method and Description
double[]	Compute(double[][] features) Compute VLAD.

Methods inherited from class java.lang.Object

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

Constructor Detail

Vlad

public Vlad(double[][] centroids)

Initializes a new instance of the Vlad class.

Parameters:

centroids - Centroids.

Vlad

public Vlad(double[][] centroids,
            boolean normalize)

Initializes a new instance of the Vlad class.

Parameters:

centroids - Centroids.

normalize - ||x||^2 normalization.

Vlad

public Vlad(double[][] centroids,
            boolean normalize,
            boolean softmax)

Initializes a new instance of the Vlad class.

Parameters:

centroids - Centroids.

normalize - ||x||^2 normalization.

softmax - Apply softmax function.

Vlad

public Vlad(double[][] centroids,
            boolean normalize,
            boolean softmax,
            IFeatureScaling scaleVlad)

Initializes a new instance of the Vlad class.

Parameters:

centroids - Centroids.

normalize - ||x||^2 normalization.

softmax - Apply softmax function.

scaleVlad - Scale(Vlad).

Method Detail

Compute

public double[] Compute(double[][] features)

Compute VLAD.

Specified by:

Compute in interface IFeatureEncoder

Parameters:

features - Features.

Returns:

Descriptors.