/*
* Copyright (c) 2011-2013, Peter Abeles. All Rights Reserved.
*
* This file is part of BoofCV (http://boofcv.org).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package boofcv.alg.tracker.tld;
/**
* Contains information on a fern feature value pair.
*
* @author Peter Abeles
*/
public class TldFernFeature {
/**
* Numerical value of this descriptor
*/
public int value;
/**
* Number of times P-constraint has been applied
*/
public int numP;
/**
* Number of times N-constraint has been applied
*/
public int numN;
/**
* Posterior probability. P/(P+N)
*/
public double posterior;
public void init( int value ) {
this.value = value;
numP = numN = 0;
}
public void incrementP() {
numP++;
computePosterior();
}
public void incrementN() {
numN++;
computePosterior();
}
private void computePosterior() {
posterior = numP/(double)(numN + numP);
}
public double getPosterior() {
return posterior;
}
public int getValue() {
return value;
}
}