python tools/train.py -c configs/picodet_xs_320_coco_lcnet.yml -o use_gpu=false --eval


python tools/export_model.py  -c configs/picodet_xs_320_coco_lcnet.yml  -o weights=output/picodet_xs_320_coco_lcnet/model_final.pdparams  num_classes=4  --output_dir=inference_model 

paddle2onnx --model_dir inference_model/picodet_xs_320_coco_lcnet --model_filename model.pdmodel  --params_filename model.pdiparams --opset_version 11 --save_file picodet_xs_320_coco.onnx

python -m paddle2onnx.optimize --input_model picodet_xs_320_coco.onnx --output_model picodet_xs_processed.onnx