ORB-SLAM3/ORB-SLAM3-UESTC/Workspace/include/KeyFrameDatabase.h

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/**
* This file is part of ORB-SLAM3
*
* Copyright (C) 2017-2021 Carlos Campos, Richard Elvira, Juan J. Gómez Rodríguez, José M.M. Montiel and Juan D. Tardós, University of Zaragoza.
* Copyright (C) 2014-2016 Raúl Mur-Artal, José M.M. Montiel and Juan D. Tardós, University of Zaragoza.
*
* ORB-SLAM3 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 3 of the License, or
* (at your option) any later version.
*
* ORB-SLAM3 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 ORB-SLAM3.
* If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef KEYFRAMEDATABASE_H
#define KEYFRAMEDATABASE_H
#include <vector>
#include <list>
#include <set>
#include "KeyFrame.h"
#include "Frame.h"
#include "ORBVocabulary.h"
#include "Map.h"
#include <boost/serialization/base_object.hpp>
#include <boost/serialization/vector.hpp>
#include <boost/serialization/list.hpp>
#include<mutex>
namespace ORB_SLAM3
{
class KeyFrame;
class Frame;
class Map;
class KeyFrameDatabase
{
friend class boost::serialization::access;
template<class Archive>
void serialize(Archive& ar, const unsigned int version)
{
ar & mvBackupInvertedFileId;
}
public:
EIGEN_MAKE_ALIGNED_OPERATOR_NEW
KeyFrameDatabase(){}
KeyFrameDatabase(const ORBVocabulary &voc);
void add(KeyFrame* pKF);
void erase(KeyFrame* pKF);
void clear();
void clearMap(Map* pMap);
// Loop Detection(DEPRECATED)
std::vector<KeyFrame *> DetectLoopCandidates(KeyFrame* pKF, float minScore);
// Loop and Merge Detection
void DetectCandidates(KeyFrame* pKF, float minScore,vector<KeyFrame*>& vpLoopCand, vector<KeyFrame*>& vpMergeCand);
void DetectBestCandidates(KeyFrame *pKF, vector<KeyFrame*> &vpLoopCand, vector<KeyFrame*> &vpMergeCand, int nMinWords);
void DetectNBestCandidates(KeyFrame *pKF, vector<KeyFrame*> &vpLoopCand, vector<KeyFrame*> &vpMergeCand, int nNumCandidates);
// Relocalization
std::vector<KeyFrame*> DetectRelocalizationCandidates(Frame* F, Map* pMap);
void PreSave();
void PostLoad(map<long unsigned int, KeyFrame*> mpKFid);
void SetORBVocabulary(ORBVocabulary* pORBVoc);
protected:
// Associated vocabulary
const ORBVocabulary* mpVoc;
// Inverted file
std::vector<list<KeyFrame*> > mvInvertedFile;
// For save relation without pointer, this is necessary for save/load function
std::vector<list<long unsigned int> > mvBackupInvertedFileId;
// Mutex
std::mutex mMutex;
};
} //namespace ORB_SLAM
#endif