vpHinkley.h

/****************************************************************************
 *
 * ViSP, open source Visual Servoing Platform software.
 * Copyright (C) 2005 - 2019 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * See http://visp.inria.fr for more information.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * Hinkley's cumulative sum test implementation.
 *
 * Authors:
 * Fabien Spindler
 *
 *****************************************************************************/

#ifndef vpHinkley_H
#define vpHinkley_H

#include <visp3/core/vpConfig.h>

class VISP_EXPORT vpHinkley
{
public:
  typedef enum {
    noJump,       
    downwardJump, 
    upwardJump    
  } vpHinkleyJumpType;

public:
  vpHinkley();
  virtual ~vpHinkley();
  vpHinkley(double alpha, double delta);

  void init();
  void init(double alpha, double delta);

  void setDelta(double delta);
  void setAlpha(double alpha);
  vpHinkleyJumpType testDownwardJump(double signal);
  vpHinkleyJumpType testUpwardJump(double signal);
  vpHinkleyJumpType testDownUpwardJump(double signal);

  static void print(vpHinkleyJumpType jump);

  inline double getMean() { return mean; }
  inline double getSk() { return Sk; }
  inline double getMk() { return Mk; }
  inline double getTk() { return Tk; }
  inline double getNk() { return Nk; }

private:
  void computeMean(double signal);
  void computeSk(double signal);
  void computeMk();
  void computeTk(double signal);
  void computeNk();

private:
  double dmin2;
  double alpha;
  int nsignal; // Signal length
  double mean; // Signal mean value
  double Sk;
  double Mk;
  double Tk;
  double Nk;
};

#endif