Thanks @deng.shigang for your support to dev community.
@PA_GN , Once you have yolo v8 ONNX model, you need to use tensorRT_Optimization tool to generate TensorRT model that can be integrated into DW. To use, DW DNN supported preprocessing, you can update the tensorRT_model.bin.json file with preprocessing parameters(DriveWorks SDK Reference: DataConditioner Interface). Any additional pre/post processing needs to be handled separately in the sample.