parsing_pool.h

   1
   2 ///////////////////////////////////////////////////////////////////////////
   3 // This program is free software: you can redistribute it and/or modify  //
   4 // it under the terms of the version 3 of the GNU General Public License //
   5 // as published by the Free Software Foundation.                         //
   6 //                                                                       //
   7 // This program is distributed in the hope that it will be useful, but   //
   8 // WITHOUT ANY WARRANTY; without even the implied warranty of            //
   9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      //
  10 // General Public License for more details.                              //
  11 //                                                                       //
  12 // You should have received a copy of the GNU General Public License     //
  13 // along with this program. If not, see <http://www.gnu.org/licenses/>.  //
  14 //                                                                       //
  15 // Written by Francois Fleuret                                           //
  16 // (C) Idiap Research Institute                                          //
  17 //                                                                       //
  18 // Contact <francois.fleuret@idiap.ch> for comments & bug reports        //
  19 ///////////////////////////////////////////////////////////////////////////
  20
  21 /*
  22
  23   A ParsingPool is a family of Parsings associated to all the images
  24   of a LabelledImagePool.
  25
  26 */
  27
  28 #ifndef PARSING_POOL_H
  29 #define PARSING_POOL_H
  30
  31 #include "parsing.h"
  32 #include "pi_feature_family.h"
  33 #include "classifier.h"
  34 #include "labelled_image_pool.h"
  35 #include "pose_cell_hierarchy.h"
  36
  37 class ParsingPool {
  38   int _nb_images;
  39   long int _nb_cells, _nb_positive_cells, _nb_negative_cells;
  40   Parsing **_parsings;
  41
  42 public:
  43
  44   inline int nb_cells() {
  45     return _nb_cells;
  46   }
  47
  48   inline int nb_positive_cells() {
  49     return _nb_positive_cells;
  50   }
  51
  52   inline int nb_negative_cells() {
  53     return _nb_negative_cells;
  54   }
  55
  56   ParsingPool(LabelledImagePool *image_pool, PoseCellHierarchy *hierarchy, scalar_t proportion_negative_cells);
  57
  58   ~ParsingPool();
  59
  60   // The parameter level is the resulting level, not the starting one,
  61   // hence should always be strictly positive
  62   void down_one_level(LossMachine *loss_machine, PoseCellHierarchy *hierarchy, int level);
  63
  64   void update_cell_responses(PiFeatureFamily *pi_feature_family,
  65                              Classifier *classifier);
  66
  67   // Collect all positive and sample negative examples
  68   void weighted_sampling(LossMachine *loss_machine,
  69                          PiFeatureFamily *pi_feature_family,
  70                          SampleSet *sample_set,
  71                          scalar_t *responses);
  72
  73   void write_roc(ofstream *out);
  74 };
  75
  76 #endif