Tracking of the vehicle returning to the camera backwards

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU) NVIDIA GeForce RTX 3090
• DeepStream Version 6.3
• JetPack Version (valid for Jetson only)
• TensorRT Version
• NVIDIA GPU Driver Version (valid for GPU only) 535.113.01
• Issue Type( questions, new requirements, bugs) Question
• How to reproduce the issue ? (This is for bugs. Including which sample app is using, the configuration files content, the command line used and other details for reproducing)
• Requirement details( This is for new requirement. Including the module name-for which plugin or for which sample application, the function description)


I am developing an application in DeepStream that detects and tracks trucks using YOLO detection model and the NvDCF tracker. In normal situations the application works fine, however in a specific case I have found an issue. There is a case where the truck leaves the camera and reappears in the camera a few seconds later moving backwards. In this case, the tracker is not able to keep the ID, so when the truck re-enters the camera it assigns another one:

The truck when leaves the camera:

The truck when enters the camera backwards:

Is it possible to keep the ID by changing some parameter of the NvDCF tracker?

Thank you,


Please upgrade to the latest DeepStream 6.4 release. Please have a try with: /opt/nvidia/deepstream/deepstream-6.4/samples/configs/deepstream-app/config_tracker_NvDCF_accuracy.yml
: Gst-nvtracker — DeepStream documentation 6.4 documentation

Is there much difference between version 6.3 and 6.4 trackers?

There is no update from you for a period, assuming this is not an issue anymore. Hence we are closing this topic. If need further support, please open a new one. Thanks

Yes, please check the “What’s new” in release notes:

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