ObjRecBOF.H

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/*!@file ObjRec/ObjRecBOF.H ObjRec using bag of features */

// //////////////////////////////////////////////////////////////////// //
// The iLab Neuromorphic Vision C++ Toolkit - Copyright (C) 2001 by the //
// University of Southern California (USC) and the iLab at USC.         //
// See http://iLab.usc.edu for information about this project.          //
// //////////////////////////////////////////////////////////////////// //
// Major portions of the iLab Neuromorphic Vision Toolkit are protected //
// under the U.S. patent ``Computation of Intrinsic Perceptual Saliency //
// in Visual Environments, and Applications'' by Christof Koch and      //
// Laurent Itti, California Institute of Technology, 2001 (patent       //
// pending; application number 09/912,225 filed July 23, 2001; see      //
// http://pair.uspto.gov/cgi-bin/final/home.pl for current status).     //
// //////////////////////////////////////////////////////////////////// //
// This file is part of the iLab Neuromorphic Vision C++ Toolkit.       //
//                                                                      //
// The iLab Neuromorphic Vision C++ Toolkit 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.     //
//                                                                      //
// The iLab Neuromorphic Vision C++ Toolkit is distributed in the hope  //
// that it will be useful, but WITHOUT ANY WARRANTY; without even the   //
// implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      //
// PURPOSE.  See the GNU General Public License for more details.       //
//                                                                      //
// You should have received a copy of the GNU General Public License    //
// along with the iLab Neuromorphic Vision C++ Toolkit; if not, write   //
// to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,   //
// Boston, MA 02111-1307 USA.                                           //
// //////////////////////////////////////////////////////////////////// //
//
// Primary maintainer for this file: Lior Elazary <elazary@usc.edu>
// $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/ObjRec/ObjRecBOF.H $
// $Id: ObjRecBOF.H 13716 2010-07-28 22:07:03Z itti $
//

#ifndef ObjRecBOF_H_DEFINED
#define ObjRecBOF_H_DEFINED

#include "Image/OpenCVUtil.H"
#include "Component/ModelComponent.H"
#include "Component/ModelParam.H"
#include "Image/Image.H"
#include "Image/Pixels.H"
#include "SIFT/Histogram.H"
#include "SIFT/FeatureVector.H"

class ObjRecBOF : public ModelComponent
{
public:

  struct Keypoint
  {
    double x;
    double y;
    double scale;
    double ori;
    std::vector<double> fv;
    int codeWord; //the code work of fv
  };

  struct Object
  {
    std::string name;
    std::vector<Keypoint> keypoints;
  };


  //Constructor
  ObjRecBOF(OptionManager& mgr,
          const std::string& descrName = "ObjRecBOF",
          const std::string& tagName = "ObjRecBOF");
  ~ObjRecBOF();

  //###########################################################

  void start2();

  void train(const Image<PixRGB<byte> > &img, const std::string label);
  void train(const std::string &name, int cls);
  std::string test(const Image<PixRGB<byte> > &img);

  Image<float> extractFeatures(const Image<PixRGB<byte> > &img);

  void finalizeTraining();
  void finalizeTesting();

  void extractCodeWords(const char* dirname);
  void getCodeWords(int numCodeWords);
  void readCodeWords(const char* filename);
  int assignCodeWord(const std::vector<double> &fv);
  void assignCodeWords();

  void getObjCodeWords(const std::string &name);

  void readSaliencyFeatures(const char* dirname);
  void getSaliencyKeypoints(const std::string &name);
  std::vector<Keypoint> readSaliencyKeypoints(const char *filename);
  std::vector<Keypoint> readSIFTKeypoints(const char *filename);
  void printCodeWords();
  void printAssignedCodeWords();
  void printFeatures();

  //Gabor features
  void extractGaborFeatures(const Image<PixRGB<byte> > &img);

  //Sift features
  void getSIFTKeypoints(const std::string &name);
  void extractSIFTFeatures(const Image<PixRGB<byte> > &img);
  std::vector<std::vector<byte> > getSiftDescriptor(const Image<float> &lum,
      const float x, const float y, const float s);
  void calculateOrientationVector(const float x, const float y, const float s,
      const Image<float>& gradmag, const Image<float>& gradorie, Histogram& OV);
  std::vector<std::vector<byte> > createVectorsAndKeypoints(const float x, const float y, const float s,
      const Image<float>& gradmag, const Image<float>& gradorie, Histogram& OV);

  //Ilab sift features
  void getIlabSIFTKeypoints(const std::string &name);
  std::vector<Keypoint> readIlabSIFTKeypoints(const char *filename);


private:
  int itsNumOriArray;
  std::vector<Object> itsObjects;
  std::vector<std::vector<double> > itsCodeWords;


};

#endif

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