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, (C) IDIAP                                //
  16 // Contact <francois.fleuret@idiap.ch> for comments & bug reports        //
  17 ///////////////////////////////////////////////////////////////////////////
  18
  19 #ifndef PARSING_POOL_H
  20 #define PARSING_POOL_H
  21
  22 /*
  23
  24   A ParsingPool is a family of Parsing associated to all the images of
  25   a LabelledImagePool.
  26
  27 */
  28
  29 #include "parsing.h"
  30 #include "pi_feature_family.h"
  31 #include "classifier.h"
  32 #include "labelled_image_pool.h"
  33 #include "pose_cell_hierarchy.h"
  34
  35 class ParsingPool {
  36   int _nb_images;
  37   long int _nb_cells, _nb_positive_cells, _nb_negative_cells;
  38   Parsing **_parsings;
  39
  40 public:
  41
  42   inline int nb_cells() {
  43     return _nb_cells;
  44   }
  45
  46   inline int nb_positive_cells() {
  47     return _nb_positive_cells;
  48   }
  49
  50   inline int nb_negative_cells() {
  51     return _nb_negative_cells;
  52   }
  53
  54   ParsingPool(LabelledImagePool *image_pool, PoseCellHierarchy *hierarchy, scalar_t proportion_negative_cells);
  55
  56   ~ParsingPool();
  57
  58   // The parameter level is the resulting level, not the starting one,
  59   // hence should always be strictly positive
  60   void down_one_level(LossMachine *loss_machine, PoseCellHierarchy *hierarchy, int level);
  61
  62   void update_cell_responses(PiFeatureFamily *pi_feature_family,
  63                              Classifier *classifier);
  64
  65   // Collect all positive and sample negative examples
  66   void weighted_sampling(LossMachine *loss_machine,
  67                          PiFeatureFamily *pi_feature_family,
  68                          SampleSet *sample_set,
  69                          scalar_t *responses);
  70
  71   void write_roc(ofstream *out);
  72 };
  73
  74 #endif