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Optimizer.h
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Optimizer.h
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/**
* This file is part of ORB-SLAM2.
* 全局/局部 优化 使用G2O图优化
*/
#ifndef OPTIMIZER_H
#define OPTIMIZER_H
#include "Map.h"
#include "MapPoint.h"
#include "KeyFrame.h"
#include "LoopClosing.h"
#include "Frame.h"
#include "Thirdparty/g2o/g2o/types/types_seven_dof_expmap.h"
// 定义好的顶点类型 7维度 优化变量 例如 相机 位姿 + 深度信息
namespace ORB_SLAM2
{
class LoopClosing;
class Optimizer
{
public:
// BA 最小化重投影误差 优化
void static BundleAdjustment(const std::vector<KeyFrame*> &vpKF, const std::vector<MapPoint*> &vpMP,
int nIterations = 5, bool *pbStopFlag=NULL, const unsigned long nLoopKF=0,
const bool bRobust = true);
// 全局优化 地图 迭代次数
void static GlobalBundleAdjustemnt(Map* pMap, int nIterations=5, bool *pbStopFlag=NULL,
const unsigned long nLoopKF=0, const bool bRobust = true);
// 局部优化
void static LocalBundleAdjustment(KeyFrame* pKF, bool *pbStopFlag, Map *pMap);
// 位姿 优化
int static PoseOptimization(Frame* pFrame);
// 优化图 3d位姿 + 3d平移 双目/深度 优化6维
// 单目 在优化 3d位姿 + 3d平移上在 优化一维 深度信息
// if bFixScale is true, 6DoF optimization (stereo,rgbd), 7DoF otherwise (mono)
// 闭环检测到后的优化
void static OptimizeEssentialGraph(Map* pMap, KeyFrame* pLoopKF, KeyFrame* pCurKF,
const LoopClosing::KeyFrameAndPose &NonCorrectedSim3,
const LoopClosing::KeyFrameAndPose &CorrectedSim3,
const map<KeyFrame *, set<KeyFrame *> > &LoopConnections,
const bool &bFixScale);
// if bFixScale is true, optimize SE3 (stereo,rgbd), Sim3 otherwise (mono)
static int OptimizeSim3(KeyFrame* pKF1, KeyFrame* pKF2, std::vector<MapPoint *> &vpMatches1,
g2o::Sim3 &g2oS12, const float th2, const bool bFixScale);
};
} //namespace ORB_SLAM
#endif // OPTIMIZER_H