Blinking Tracks Problem - Shadow Mode

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU) GPU
• DeepStream Version 7.1
• JetPack Version (valid for Jetson only)
• TensorRT Version 10.3.0.26
• NVIDIA GPU Driver Version (valid for GPU only) A10/A100/V100
• Issue Type( questions, new requirements, bugs) question, bug

• 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)

Hi. I am using a pipeline with detection and tracker of type nvDCF. The problem is, I face flickering bounding boxes where some objects that were detected before, enter shadow mode, but the shadow mode is not displayed in the screen (they do not reach the metadata probe).
I read in the tracker’s documentation and saw the parameter “outputShadowTracks”. However, when setting it to 1 in the tracker’s config, it still did not show the shadow mode tracks (even though “maxShadowTrackingAge” is 30).
I have two questions regarding this issue:

  1. Is there a way to output the shadow tracks to the pipeline (in order to show them on the screen)?
  2. Is there a way to separate the number of frames until shadow tracking begins and the detection interval? right now I see that the object enters shadow mode right in the frame of the detection (that misses it), but I am wondering if there is a way to separate them.
2 Likes

Can you share video to show the issue? Do you see the same issue without tracker? Are you useing deepstream-app to test “outputShadowTracks” based on the guide here: Gst-nvtracker — DeepStream documentation?