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Introduction

Welcome to DAMO-YOLO! It is a fast and accurate object detection method, which is developed by TinyML Team from Alibaba DAMO Data Analytics and Intelligence Lab. And it achieves a higher performance than state-of-the-art YOLO series. DAMO-YOLO is extend from YOLO but with some new techs, including Neural Architecture Search (NAS) backbones, efficient Reparameterized Generalized-FPN (RepGFPN), a lightweight head with AlignedOTA label assignment, and distillation enhancement. For more details, please refer to our Arxiv Report. Moreover, here you can find not only powerful models, but also highly efficient training strategies and complete tools from training to deployment.

Updates

• [2023/02/15: Baseline for The 3rd Anti-UAV Challenge.]
  • Welcome to join the 3rd Anti-UAV Challenge on CVPR2023. The Challenge provides baseline models trained by DAMO-YOLO, which can be found on DamoYolo_Anti-UAV-23_S and DamoYolo_Anti-UAV-23_L.
• [2023/01/07: We release DAMO-YOLO v0.2.1!]
  • Add TensorRT Int8 Quantization Tutorial, achieves 19% speed up with only 0.3% accuracy loss.
  • Add general demo tools, support TensorRT/Onnx/Torch based vidoe/image inference.
  • Add more industry application models, including human detection, helmet detection, facemask detection and cigarette detection.
  • Add third-party resources, including DAMO-YOLO Code Interpretation, Practical Example for Finetuning on Custom Dataset.
• [2022/12/15: We release DAMO-YOLO v0.1.1!]
  • Add a detailed Custom Dataset Finetune Tutorial.
  • The stuck problem caused by no-label data (e.g., ISSUE#30) is solved. Feel free to contact us, we are 24h stand by.
• [2022/11/27: We release DAMO-YOLO v0.1.0!]
  • Release DAMO-YOLO object detection models, including DAMO-YOLO-T, DAMO-YOLO-S and DAMO-YOLO-M.
  • Release model convert tools for easy deployment, supports onnx and TensorRT-fp32, TensorRT-fp16.

Web Demo

• DAMO-YOLO-T, DAMO-YOLO-S, DAMO-YOLO-M is integrated into ModelScope. Training is supported on ModelScope now! Come and try DAMO-YOLO with free GPU resources provided by ModelScope.

Model Zoo

Model	size	mAPval 0.5:0.95	Latency T4 TRT-FP16-BS1	FLOPs (G)	Params (M)	AliYun Download	Google Download
DAMO-YOLO-T	640	41.8	2.78	18.1	8.5	torch,onnx	torch,onnx
DAMO-YOLO-T*	640	43.0	2.78	18.1	8.5	torch,onnx	torch,onnx
DAMO-YOLO-S	640	45.6	3.83	37.8	16.3	torch,onnx	torch,onnx
DAMO-YOLO-S*	640	46.8	3.83	37.8	16.3	torch,onnx	torch,onnx
DAMO-YOLO-M	640	48.7	5.62	61.8	28.2	torch,onnx	torch,onnx
DAMO-YOLO-M*	640	50.0	5.62	61.8	28.2	torch,onnx	torch,onnx

• We report the mAP of models on COCO2017 validation set, with multi-class NMS.
• The latency in this table is measured without post-processing.
• * denotes the model trained with distillation.

Quick Start

Installation

Step1. Install DAMO-YOLO.

git clone https://github.com/tinyvision/damo-yolo.git
cd DAMO-YOLO/
conda create -n DAMO-YOLO python=3.7 -y
conda activate DAMO-YOLO
conda install pytorch==1.7.0 torchvision==0.8.0 torchaudio==0.7.0 cudatoolkit=10.2 -c pytorch
pip install -r requirements.txt
export PYTHONPATH=$PWD:$PYTHONPATH

Step2. Install pycocotools.

pip install cython;
pip install git+https://github.com/cocodataset/cocoapi.git#subdirectory=PythonAPI # for Linux
pip install git+https://github.com/philferriere/cocoapi.git#subdirectory=PythonAPI # for Windows

Demo

Step1. Download a pretrained torch, onnx or tensorRT engine from the benchmark table, e.g., damoyolo_tinynasL25_S.pth, damoyolo_tinynasL25_S.onnx, damoyolo_tinynasL25_S.trt.

Step2. Use -f(config filename) to specify your detector's config, --path to specify input data path, image or video are supported. For example:

# torch
python tools/demo.py -f ./configs/damoyolo_tinynasL25_S.py --engine ./damoyolo_tinynasL25_S.pth --engine_type torch --conf 0.6 --infer_size 640 640 --device cuda --path ./assets/dog.jpg

# onnx
python tools/demo.py -f ./configs/damoyolo_tinynasL25_S.py --engine ./damoyolo_tinynasL25_S.onnx --engine_type onnx --conf 0.6 --infer_size 640 640 --device cuda --path ./assets/dog.jpg

# tensorRT
python tools/demo.py -f ./configs/damoyolo_tinynasL25_S.py --engine ./damoyolo_tinynasL25_S.trt --engine_type tensorRT --conf 0.6 --infer_size 640 640 --device cuda --path ./assets/dog.jpg

Reproduce our results on COCO

Step1. Prepare COCO dataset

cd <DAMO-YOLO Home>
ln -s /path/to/your/coco ./datasets/coco

Step 2. Reproduce our results on COCO by specifying -f(config filename)

python -m torch.distributed.launch --nproc_per_node=8 tools/train.py -f configs/damoyolo_tinynasL25_S.py

Finetune on your data

Please refer to custom dataset tutorial for details.

Evaluation

python -m torch.distributed.launch --nproc_per_node=8 tools/eval.py -f configs/damoyolo_tinynasL25_S.py --ckpt /path/to/your/damoyolo_tinynasL25_S.pth

Customize tinynas backbone

Step1. If you want to customize your own backbone, please refer to [MAE-NAS Tutorial for DAMO-YOLO](https://github.com/alibaba/lightweight-neural-architecture-search/blob/main/scripts/damo-yolo/Tutorial_NAS_for_DAMO-YOLO_cn.md). This is a detailed tutorial about how to obtain an optimal backbone under the budget of latency/flops.

Step2. After the searching process completed, you can replace the structure text in configs with it. Finally, you can get your own custom ResNet-like or CSPNet-like backbone after setting the backbone name to TinyNAS_res or TinyNAS_csp. Please notice the difference of out_indices between TinyNAS_res and TinyNAS_csp.

structure = self.read_structure('tinynas_customize.txt')
TinyNAS = { 'name'='TinyNAS_res', # ResNet-like Tinynas backbone
            'out_indices': (2,4,5)}
TinyNAS = { 'name'='TinyNAS_csp', # CSPNet-like Tinynas backbone
            'out_indices': (2,3,4)}

Deploy

Installation

Step1. Install ONNX.

pip install onnx==1.8.1
pip install onnxruntime==1.8.0
pip install onnx-simplifier==0.3.5

Step2. Install CUDA、CuDNN、TensorRT and pyCUDA

2.1 CUDA

wget https://developer.download.nvidia.com/compute/cuda/10.2/Prod/local_installers/cuda_10.2.89_440.33.01_linux.run
sudo sh cuda_10.2.89_440.33.01_linux.run
export PATH=$PATH:/usr/local/cuda-10.2/bin
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda-10.2/lib64
source ~/.bashrc

2.2 CuDNN

sudo cp cuda/include/* /usr/local/cuda/include/
sudo cp cuda/lib64/libcudnn* /usr/local/cuda/lib64/
sudo chmod a+r /usr/local/cuda/include/cudnn.h
sudo chmod a+r /usr/local/cuda/lib64/libcudnn*

2.3 TensorRT

cd TensorRT-7.2.1.6/python
pip install tensorrt-7.2.1.6-cp37-none-linux_x86_64.whl
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:TensorRT-7.2.1.6/lib

2.4 pycuda

pip install pycuda==2022.1

Model Convert

Now we support trt_int8 quantization, you can specify trt_type as int8 to export the int8 tensorRT engine. You can also try partial quantization to achieve a good compromise between accuracy and latency. Refer to partial_quantization for more details.

Step.1 convert torch model to onnx or trt engine, and the output file would be generated in ./deploy. end2end means to export trt with nms. trt_eval means to evaluate the exported trt engine on coco_val dataset after the export compelete.

# onnx export 
python tools/converter.py -f configs/damoyolo_tinynasL25_S.py -c damoyolo_tinynasL25_S.pth --batch_size 1 --img_size 640

# trt export
python tools/converter.py -f configs/damoyolo_tinynasL25_S.py -c damoyolo_tinynasL25_S.pth --batch_size 1 --img_size 640 --trt --end2end --trt_eval

Step.2 trt engine evaluation on coco_val dataset. end2end means to using trt_with_nms to evaluation.

python tools/trt_eval.py -f configs/damoyolo_tinynasL25_S.py -trt deploy/damoyolo_tinynasL25_S_end2end_fp16_bs1.trt --batch_size 1 --img_size 640 --end2end

Step.3 onnx or trt engine inference demo and appoint test image/video by --path. end2end means to using trt_with_nms to inference.

# onnx inference
python tools/demo.py -f ./configs/damoyolo_tinynasL25_S.py --engine ./damoyolo_tinynasL25_S.onnx --engine_type onnx --conf 0.6 --infer_size 640 640 --device cuda --path ./assets/dog.jpg

# trt inference
python tools/demo.py -f ./configs/damoyolo_tinynasL25_S.py --engine ./deploy/damoyolo_tinynasL25_S_end2end_fp16_bs1.trt --engine_type tensorRT --conf 0.6 --infer_size 640 640 --device cuda --path ./assets/dog.jpg --end2end

Industry Application Models:

We provide DAMO-YOLO models for applications in real scenarios, which are listed as follows. More powerful models are coming, please stay tuned.

Human Detection	Helmet Detection	Head Detection	Smartphone Detectioin
Facemask Detection	Cigarette Detection	Traffic Sign Detection

Third Party Resources

In order to promote communication among DAMO-YOLO users, we collect third-party resources in this section. If you have original content about DAMO-YOLO, please feel free to contact us at [email protected].

• DAMO-YOLO Overview: slides(中文 | English), videos(中文 | English).
• DAMO-YOLO Code Interpretation
• Practical Example for Finetuning on Custom Dataset

Intern Recruitment

We are recruiting research intern, if you are interested in object detection, model quantization or NAS, please send your resume to [email protected]

Cite DAMO-YOLO

If you use DAMO-YOLO in your research, please cite our work by using the following BibTeX entry:

 @article{damoyolo,
   title={DAMO-YOLO: A Report on Real-Time Object Detection Design},
   author={Xianzhe Xu, Yiqi Jiang, Weihua Chen, Yilun Huang, Yuan Zhang and Xiuyu Sun},
   journal={arXiv preprint arXiv:2211.15444v2},
   year={2022},
 }

 @inproceedings{sun2022mae,
   title={Mae-det: Revisiting maximum entropy principle in zero-shot nas for efficient object detection},
   author={Sun, Zhenhong and Lin, Ming and Sun, Xiuyu and Tan, Zhiyu and Li, Hao and Jin, Rong},
   booktitle={International Conference on Machine Learning},
   pages={20810--20826},
   year={2022},
   organization={PMLR}
 }

 @inproceedings{tan2021giraffedet,
   title={Giraffedet: A heavy-neck paradigm for object detection},
   author={Tan, Zhiyu and Wang, Junyan and Sun, Xiuyu and Lin, Ming and Li, Hao and others},
   booktitle={International Conference on Learning Representations},
   year={2021}
 }