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include/Tracking.h
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353
include/Tracking.h
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/**
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* This file is part of ORB-SLAM3
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*
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* Copyright (C) 2017-2020 Carlos Campos, Richard Elvira, Juan J. Gómez Rodríguez, José M.M. Montiel and Juan D. Tardós, University of Zaragoza.
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* Copyright (C) 2014-2016 Raúl Mur-Artal, José M.M. Montiel and Juan D. Tardós, University of Zaragoza.
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*
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* ORB-SLAM3 is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* ORB-SLAM3 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with ORB-SLAM3.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TRACKING_H
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#define TRACKING_H
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#include<opencv2/core/core.hpp>
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#include<opencv2/features2d/features2d.hpp>
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#include <opencv2/video/tracking.hpp>
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#include"Viewer.h"
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#include"FrameDrawer.h"
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#include"Atlas.h"
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#include"LocalMapping.h"
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#include"LoopClosing.h"
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#include"Frame.h"
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#include "ORBVocabulary.h"
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#include"KeyFrameDatabase.h"
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#include"ORBextractor.h"
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#include "Initializer.h"
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#include "MapDrawer.h"
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#include "System.h"
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#include "ImuTypes.h"
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#include "GeometricCamera.h"
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#include <mutex>
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#include <unordered_set>
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namespace ORB_SLAM3
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{
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class Viewer;
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class FrameDrawer;
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class Atlas;
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class LocalMapping;
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class LoopClosing;
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class System;
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class Tracking
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{
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public:
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Tracking(System* pSys, ORBVocabulary* pVoc, FrameDrawer* pFrameDrawer, MapDrawer* pMapDrawer, Atlas* pAtlas,
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KeyFrameDatabase* pKFDB, const string &strSettingPath, const int sensor, const string &_nameSeq=std::string());
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~Tracking();
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// Parse the config file
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bool ParseCamParamFile(cv::FileStorage &fSettings);
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bool ParseORBParamFile(cv::FileStorage &fSettings);
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bool ParseIMUParamFile(cv::FileStorage &fSettings);
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// Preprocess the input and call Track(). Extract features and performs stereo matching.
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cv::Mat GrabImageStereo(const cv::Mat &imRectLeft,const cv::Mat &imRectRight, const double ×tamp, string filename);
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cv::Mat GrabImageRGBD(const cv::Mat &imRGB,const cv::Mat &imD, const double ×tamp, string filename);
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cv::Mat GrabImageMonocular(const cv::Mat &im, const double ×tamp, string filename);
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// cv::Mat GrabImageImuMonocular(const cv::Mat &im, const double ×tamp);
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void GrabImuData(const IMU::Point &imuMeasurement);
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void SetLocalMapper(LocalMapping* pLocalMapper);
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void SetLoopClosing(LoopClosing* pLoopClosing);
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void SetViewer(Viewer* pViewer);
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void SetStepByStep(bool bSet);
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// Load new settings
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// The focal lenght should be similar or scale prediction will fail when projecting points
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void ChangeCalibration(const string &strSettingPath);
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// Use this function if you have deactivated local mapping and you only want to localize the camera.
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void InformOnlyTracking(const bool &flag);
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void UpdateFrameIMU(const float s, const IMU::Bias &b, KeyFrame* pCurrentKeyFrame);
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KeyFrame* GetLastKeyFrame()
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{
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return mpLastKeyFrame;
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}
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void CreateMapInAtlas();
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std::mutex mMutexTracks;
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//--
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void NewDataset();
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int GetNumberDataset();
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int GetMatchesInliers();
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public:
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// Tracking states
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enum eTrackingState{
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SYSTEM_NOT_READY=-1,
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NO_IMAGES_YET=0,
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NOT_INITIALIZED=1,
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OK=2,
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RECENTLY_LOST=3,
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LOST=4,
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OK_KLT=5
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};
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eTrackingState mState;
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eTrackingState mLastProcessedState;
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// Input sensor
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int mSensor;
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// Current Frame
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Frame mCurrentFrame;
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Frame mLastFrame;
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cv::Mat mImGray;
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// Initialization Variables (Monocular)
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std::vector<int> mvIniLastMatches;
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std::vector<int> mvIniMatches;
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std::vector<cv::Point2f> mvbPrevMatched;
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std::vector<cv::Point3f> mvIniP3D;
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Frame mInitialFrame;
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// Lists used to recover the full camera trajectory at the end of the execution.
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// Basically we store the reference keyframe for each frame and its relative transformation
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list<cv::Mat> mlRelativeFramePoses;
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list<KeyFrame*> mlpReferences;
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list<double> mlFrameTimes;
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list<bool> mlbLost;
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// frames with estimated pose
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int mTrackedFr;
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bool mbStep;
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// True if local mapping is deactivated and we are performing only localization
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bool mbOnlyTracking;
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void Reset(bool bLocMap = false);
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void ResetActiveMap(bool bLocMap = false);
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float mMeanTrack;
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bool mbInitWith3KFs;
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double t0; // time-stamp of first read frame
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double t0vis; // time-stamp of first inserted keyframe
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double t0IMU; // time-stamp of IMU initialization
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vector<MapPoint*> GetLocalMapMPS();
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bool mbWriteStats;
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#ifdef REGISTER_TIMES
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void LocalMapStats2File();
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void TrackStats2File();
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void PrintTimeStats();
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vector<double> vdRectStereo_ms;
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vector<double> vdORBExtract_ms;
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vector<double> vdStereoMatch_ms;
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vector<double> vdIMUInteg_ms;
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vector<double> vdPosePred_ms;
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vector<double> vdLMTrack_ms;
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vector<double> vdNewKF_ms;
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vector<double> vdTrackTotal_ms;
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vector<double> vdUpdatedLM_ms;
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vector<double> vdSearchLP_ms;
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vector<double> vdPoseOpt_ms;
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#endif
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vector<int> vnKeyFramesLM;
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vector<int> vnMapPointsLM;
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protected:
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// Main tracking function. It is independent of the input sensor.
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void Track();
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// Map initialization for stereo and RGB-D
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void StereoInitialization();
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// Map initialization for monocular
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void MonocularInitialization();
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void CreateNewMapPoints();
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cv::Mat ComputeF12(KeyFrame *&pKF1, KeyFrame *&pKF2);
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void CreateInitialMapMonocular();
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void CheckReplacedInLastFrame();
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bool TrackReferenceKeyFrame();
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void UpdateLastFrame();
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bool TrackWithMotionModel();
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bool PredictStateIMU();
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bool Relocalization();
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void UpdateLocalMap();
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void UpdateLocalPoints();
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void UpdateLocalKeyFrames();
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bool TrackLocalMap();
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bool TrackLocalMap_old();
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void SearchLocalPoints();
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bool NeedNewKeyFrame();
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void CreateNewKeyFrame();
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// Perform preintegration from last frame
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void PreintegrateIMU();
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// Reset IMU biases and compute frame velocity
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void ComputeGyroBias(const vector<Frame*> &vpFs, float &bwx, float &bwy, float &bwz);
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void ComputeVelocitiesAccBias(const vector<Frame*> &vpFs, float &bax, float &bay, float &baz);
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bool mbMapUpdated;
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// Imu preintegration from last frame
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IMU::Preintegrated *mpImuPreintegratedFromLastKF;
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// Queue of IMU measurements between frames
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std::list<IMU::Point> mlQueueImuData;
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// Vector of IMU measurements from previous to current frame (to be filled by PreintegrateIMU)
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std::vector<IMU::Point> mvImuFromLastFrame;
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std::mutex mMutexImuQueue;
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// Imu calibration parameters
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IMU::Calib *mpImuCalib;
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// Last Bias Estimation (at keyframe creation)
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IMU::Bias mLastBias;
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// In case of performing only localization, this flag is true when there are no matches to
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// points in the map. Still tracking will continue if there are enough matches with temporal points.
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// In that case we are doing visual odometry. The system will try to do relocalization to recover
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// "zero-drift" localization to the map.
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bool mbVO;
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//Other Thread Pointers
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LocalMapping* mpLocalMapper;
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LoopClosing* mpLoopClosing;
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//ORB
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ORBextractor* mpORBextractorLeft, *mpORBextractorRight;
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ORBextractor* mpIniORBextractor;
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//BoW
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ORBVocabulary* mpORBVocabulary;
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KeyFrameDatabase* mpKeyFrameDB;
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// Initalization (only for monocular)
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Initializer* mpInitializer;
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bool mbSetInit;
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//Local Map
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KeyFrame* mpReferenceKF;
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std::vector<KeyFrame*> mvpLocalKeyFrames;
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std::vector<MapPoint*> mvpLocalMapPoints;
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// System
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System* mpSystem;
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//Drawers
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Viewer* mpViewer;
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FrameDrawer* mpFrameDrawer;
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MapDrawer* mpMapDrawer;
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bool bStepByStep;
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//Atlas
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Atlas* mpAtlas;
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//Calibration matrix
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cv::Mat mK;
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cv::Mat mDistCoef;
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float mbf;
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//New KeyFrame rules (according to fps)
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int mMinFrames;
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int mMaxFrames;
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int mnFirstImuFrameId;
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int mnFramesToResetIMU;
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// Threshold close/far points
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// Points seen as close by the stereo/RGBD sensor are considered reliable
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// and inserted from just one frame. Far points requiere a match in two keyframes.
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float mThDepth;
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// For RGB-D inputs only. For some datasets (e.g. TUM) the depthmap values are scaled.
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float mDepthMapFactor;
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//Current matches in frame
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int mnMatchesInliers;
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//Last Frame, KeyFrame and Relocalisation Info
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KeyFrame* mpLastKeyFrame;
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unsigned int mnLastKeyFrameId;
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unsigned int mnLastRelocFrameId;
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double mTimeStampLost;
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double time_recently_lost;
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double time_recently_lost_visual;
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unsigned int mnFirstFrameId;
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unsigned int mnInitialFrameId;
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unsigned int mnLastInitFrameId;
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bool mbCreatedMap;
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//Motion Model
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cv::Mat mVelocity;
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//Color order (true RGB, false BGR, ignored if grayscale)
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bool mbRGB;
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list<MapPoint*> mlpTemporalPoints;
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//int nMapChangeIndex;
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int mnNumDataset;
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ofstream f_track_stats;
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ofstream f_track_times;
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double mTime_PreIntIMU;
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double mTime_PosePred;
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double mTime_LocalMapTrack;
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double mTime_NewKF_Dec;
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GeometricCamera* mpCamera, *mpCamera2;
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int initID, lastID;
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cv::Mat mTlr;
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public:
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cv::Mat mImRight;
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};
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} //namespace ORB_SLAM
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#endif // TRACKING_H
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