boofcv.alg.tracker.tld

Class TldFernManager

java.lang.Object

boofcv.alg.tracker.tld.TldFernManager

public class TldFernManager
extends java.lang.Object

Lookup table for ferns. An array is used to look up each fern by value. The recommend descriptor size in the paper is 10 bits, which results in a reasonably sized table.

Constructor Summary

Constructors

Constructor and Description
TldFernManager(int descriptorSize) Configures the manager

Method Summary

Modifier and Type	Method and Description
protected TldFernFeature	createFern()
TldFernFeature	lookupFern(int value) Looks up the fern with the specified value.
double	lookupPosterior(int value) Looks up the posterior probability of the specified fern.
void	reset()

Methods inherited from class java.lang.Object

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

Constructor Detail

TldFernManager

public TldFernManager(int descriptorSize)

Configures the manager

Parameters:

descriptorSize - Size of the fern's descriptor

Method Detail

lookupFern

public TldFernFeature lookupFern(int value)

Looks up the fern with the specified value. If non exist a new one is created and returned.

Parameters:

value - The fern's value

Returns:

The fern associated with that value

lookupPosterior

public double lookupPosterior(int value)

Looks up the posterior probability of the specified fern. If a fern is found its posterior is returned otherwise -1 is returned. NOTE: How unknown values are handled is a deviation from the paper.

Parameters:

value - The fern's value

Returns:

Fern's posterior probability. If the value is known then return -1

reset

public void reset()

createFern

protected TldFernFeature createFern()