Hardware Platform (Jetson / GPU) - GPU GT 1030 and OS Ubuntu-18.04.4 LTS
DeepStream Version - DeepStream 5.0
TensorRT Version - 188.8.131.52
CUDA - 11.2
NVIDIA GPU Driver Version (valid for GPU only) - 460.32.03
Issue Type( questions, new requirements, bugs) -
The performance of the YOLOv2 model using Deepstream changes when the output size of the streammux changes. We ran a series of tests to confirm this and the model performs better when the streammux output size is given as a square resolution compared to that of a rectangle resolution or the default size(1920x1080 or 1280x720). Although by using the default resolution, the model is still able to detect the objects, but after changing the resolution to a square one, the model was able to detect more objects which weren’t detected earlier. Can you state the reason behind this and what can be done to overcome this performance issue without sacrificing the resolution of the streammux output?
I have attached the config files required to run the deepstream application as well as our results.
Deepstream YOLOv2 Config File:
deepstream_app_config_yoloV2.txt (3.6 KB)
YOLOv2 Config File:
config_infer_primary_yoloV2.txt (3.4 KB)
The difference in Results:
Rectangle (Default) Resolution:
As you can see with the square resolution, the model was able to detect cars from the far away lane too.
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)
Follow the steps from the README file at
and run the application for YOLOv2.
README (5.2 KB)
This application uses the default weights and config for YOLOv2 application provided by Deepstream.
You can change the Streammux resolution from the deepstream_app_config_yoloV2.txt file to square and rectangle resolution and observe the results.