Method InitTracker

example/examples.h:483–543

\brief InitTracker \param frame \return

    /// \return
    ///
	bool InitTracker(cv::UMat frame) override
	{
		if (!m_trackerSettingsLoaded)
		{
			bool useDeepSORT = true;
			if (useDeepSORT)
			{
#ifdef _WIN32
				std::string pathToModel = "../../data/";
#else
				std::string pathToModel = "../data/";
#endif

				m_trackerSettings.m_embeddings.emplace_back(pathToModel + "reid/osnet_x0_25_msmt17.onnx",
					pathToModel + "reid/osnet_x0_25_msmt17.onnx",
					cv::Size(128, 256),
					std::vector<objtype_t>{ TypeConverter::Str2Type("person"), TypeConverter::Str2Type("car"), TypeConverter::Str2Type("bus"), TypeConverter::Str2Type("truck"), TypeConverter::Str2Type("vehicle") });

				std::array<track_t, tracking::DistsCount> distType{
					0.f,   // DistCenters
					0.f,   // DistRects
					0.5f,  // DistJaccard
					0.f,   // DistHist
					0.5f,  // DistFeatureCos
					0.f    // DistMahalanobis
				};
				if (!m_trackerSettings.SetDistances(distType))
					m_logger->error("SetDistances failed! Absolutly summ must be equal 1");
			}
			else
			{
				m_trackerSettings.SetDistance(tracking::DistCenters);
			}

			m_trackerSettings.m_kalmanType = tracking::KalmanLinear;
			m_trackerSettings.m_filterGoal = tracking::FilterRect;
			m_trackerSettings.m_lostTrackType = useDeepSORT ? tracking::TrackNone : tracking::TrackCSRT; // Use visual objects tracker for collisions resolving. Used if m_filterGoal == tracking::FilterRect
			m_trackerSettings.m_matchType = tracking::MatchHungrian;
			m_trackerSettings.m_useAcceleration = false;                   // Use constant acceleration motion model
			m_trackerSettings.m_dt = m_trackerSettings.m_useAcceleration ? 0.05f : 0.4f; // Delta time for Kalman filter
			m_trackerSettings.m_accelNoiseMag = 0.2f;                     // Accel noise magnitude for Kalman filter
			m_trackerSettings.m_distThres = useDeepSORT ? 0.7f : 0.8f;    // Distance threshold between region and object on two frames
#if 0
			m_trackerSettings.m_minAreaRadiusPix = frame.rows / 20.f;
#else
			m_trackerSettings.m_minAreaRadiusPix = -1.f;
#endif
			m_trackerSettings.m_minAreaRadiusK = 0.8f;
			m_trackerSettings.m_maximumAllowedLostTime = 2.; // Maximum allowed skipped frames
			m_trackerSettings.m_maxTraceLength = 2.;         // Maximum trace length
		}
        m_trackerSettings.AddNearTypes(TypeConverter::Str2Type("car"), TypeConverter::Str2Type("bus"), true);
        m_trackerSettings.AddNearTypes(TypeConverter::Str2Type("car"), TypeConverter::Str2Type("truck"), true);
        m_trackerSettings.AddNearTypes(TypeConverter::Str2Type("bus"), TypeConverter::Str2Type("truck"), true);
        m_trackerSettings.AddNearTypes(TypeConverter::Str2Type("person"), TypeConverter::Str2Type("bicycle"), true);
        m_trackerSettings.AddNearTypes(TypeConverter::Str2Type("person"), TypeConverter::Str2Type("motorbike"), true);

		m_tracker = BaseTracker::CreateTracker(m_trackerSettings);