Switch tracker IDs with NvDCF tracker

• Hardware Platform (Jetson / GPU):jetson
• DeepStream Version:5.0 ga
• JetPack Version (valid for Jetson only):4.4
• TensorRT Version:7.1

I used NvDCF Tracker in the deepstream pipeline after detection, and this tracker work well relatively, but it has a big problem, when two object have overlap more than 50%, the tracker IDs switching, why?

Could you refer https://docs.nvidia.com/metropolis/deepstream/dev-guide/text/DS_troubleshooting.html#nvdcf-tracker-parameter-tuning to tune the related params