TimVerion / pytorch-YOLOv4

Minimal PyTorch implementation of YOLOv4

Pytorch-YOLOv4

A minimal PyTorch implementation of YOLOv4.

• Paper Yolo v4: https://arxiv.org/abs/2004.10934

• Source code:https://github.com/AlexeyAB/darknet

• More details: http://pjreddie.com/darknet/yolo/

• Inference

• Train

  • Mocaic

├── README.md
├── dataset.py       dataset
├── demo.py          demo to run pytorch --> tool/darknet2pytorch
├── darknet2onnx.py  tool to convert into onnx --> tool/darknet2pytorch
├── demo_onnx.py     demo to run the converted onnx model
├── models.py        model for pytorch
├── train.py         train models.py
├── cfg.py           cfg.py for train
├── cfg              cfg --> darknet2pytorch
├── data            
├── weight           --> darknet2pytorch
├── tool
│   ├── camera.py           a demo camera
│   ├── coco_annotatin.py       coco dataset generator
│   ├── config.py
│   ├── darknet2pytorch.py
│   ├── region_loss.py
│   ├── utils.py
│   └── yolo_layer.py

0.Weight

0.1 darkent

• baidu(https://pan.baidu.com/s/1dAGEW8cm-dqK14TbhhVetA Extraction code:dm5b)
• google(https://drive.google.com/open?id=1cewMfusmPjYWbrnuJRuKhPMwRe_b9PaT)

0.2 pytorch

you can use darknet2pytorch to convert it yourself, or download my converted model.

• baidu
  • yolov4.pth(https://pan.baidu.com/s/1ZroDvoGScDgtE1ja_QqJVw Extraction code:xrq9)
  • yolov4.conv.137.pth(https://pan.baidu.com/s/1ovBie4YyVQQoUrC3AY0joA Extraction code:kcel)
• google
  • yolov4.pth(https://drive.google.com/open?id=1wv_LiFeCRYwtpkqREPeI13-gPELBDwuJ)
  • yolov4.conv.137.pth(https://drive.google.com/open?id=1fcbR0bWzYfIEdLJPzOsn4R5mlvR6IQyA)

1.Train

1. Download weight

2. Transform data

   For coco dataset,you can use tool/coco_annotatin.py.

   # train.txt
   image_path1 x1,y1,x2,y2,id x1,y1,x2,y2,id x1,y1,x2,y2,id ...
   image_path2 x1,y1,x2,y2,id x1,y1,x2,y2,id x1,y1,x2,y2,id ...
   ...
   ...
   

3. Train

   you can set parameters in cfg.py.

    python train.py -g [GPU_ID] -dir [Dataset direction] ...
   

2.Inference

• download model weight https://drive.google.com/open?id=1cewMfusmPjYWbrnuJRuKhPMwRe_b9PaT

python demo.py <cfgFile> <weightFile> <imgFile>

3.Conversion to ONNX

• Run python script to generate onnx model from darknet

  You can specify batch size (default: batch_size == 1)

  python darknet2onnx.py <cfgFile> <weightFile>

  or

  python darknet2onnx.py <cfgFile> <weightFile> <batch_size>

• The demo to run the onnx model

  pip install onnxruntime # If onnxruntime is not installed
  python demo_onnx.py <path_to_onnx_file> <path_to_sample_image>

  This demo only support batch_size == 1.

  You have to update the batch dimension of inputs/outputs for other batch sizes.

4.ONNX2Tensorflow

• First:Conversion to ONNX

  tensorflow >=2.0

  1: Thanks:github:https://github.com/onnx/onnx-tensorflow

  2: Run git clone https://github.com/onnx/onnx-tensorflow.git && cd onnx-tensorflow Run pip install -e .

  Note:Errors will occur when using "pip install onnx-tf", at least for me,it is recommended to use source code installation

Reference:

• https://github.com/eriklindernoren/PyTorch-YOLOv3
• https://github.com/marvis/pytorch-caffe-darknet-convert
• https://github.com/marvis/pytorch-yolo3

@article{yolov4,
  title={YOLOv4: YOLOv4: Optimal Speed and Accuracy of Object Detection},
  author={Alexey Bochkovskiy, Chien-Yao Wang, Hong-Yuan Mark Liao},
  journal = {arXiv},
  year={2020}
}