UDAStrongBaseline

Open-source stronger baseline for unsupervised or domain adaptive object re-ID. We will udpate the strong baseline and group-aware label transfer method in domain adaptive person re-identifacation.

Introduction

*Our method only adopts the clustering algorithm and ReID baseline model with the moving average model.

UDAStrongBaseline is a transitional code based pyTorch framework for both unsupervised learning (USL) and unsupervised domain adaptation (UDA) in the context of object re-ID tasks. It provides stronger baselines on these tasks. It needs the enviorment: Python >=3.6 and PyTorch >=1.1. We will transfer all the codes to the fastreid in the future (ongoing).

Unsupervised domain adaptation (UDA) on Person re-ID

Direct infer models are trained on the source-domain datasets (source_pretrain) and directly tested on the target-domain datasets.
UDA methods (MMT, SpCL, etc.) starting from ImageNet means that they are trained end-to-end in only one stage without source-domain pre-training. MLT denotes to the implementation of our NeurIPS-2020. Please note that it is a pre-released repository for the anonymous review process, and the official repository will be released upon the paper published.

DukeMTMC-reID -> Market-1501

Method	Backbone	Pre-trained	mAP(%)	top-1(%)	top-5(%)	top-10(%)	Train time
Direct infer	ResNet50	DukeMTMC	32.2	64.9	78.7	83.4	~1h
UDA_TP PR'2020	ResNet50	DukeMTMC	52.3	76.0	87.8	91.9	~2h
MMT ICLR'2020	ResNet50	imagenet	80.9	92.2	97.6	98.4	~6h
SpCL NIPS'2020 submission	ResNet50	imagenet	78.2	90.5	96.6	97.8	~3h
strong_baseline	ResNet50	imagenet	75.6	90.9	96.6	97.8	~3h
Our stronger_baseline	ResNet50	DukeMTMC	77.4	91.0	96.4	97.7	~3h
Our stronger_baseline + GLT (Kmeans)	ResNet50	DukeMTMC	79.5	92.7	96.9	98.0	~35h
Our stronger_baseline + uncertainty (DBSCAN)	ResNet50	DukeMTMC	82.0	93.0	97.3	98.2	~5h

Market-1501 -> DukeMTMC-reID

Method	Backbone	Pre-trained	mAP(%)	top-1(%)	top-5(%)	top-10(%)	Train time
Direct infer	ResNet50	Market1501	34.1	51.3	65.3	71.7	~1h
UDA_TP PR'2020	ResNet50	Market1501	45.7	65.5	78.0	81.7	~2h
MMT ICLR'2020	ResNet50	imagenet	67.7	80.3	89.9	92.9	~6h
SpCL NIPS'2020 submission	ResNet50	imagenet	70.4	83.8	91.2	93.4	~3h
strong_baseline	ResNet50	imagenet	60.4	75.9	86.2	89.8	~3h
Our stronger_baseline	ResNet50	Market1501	66.7	80.0	89.2	92.2	~3h
Our stronger_baseline + uncertainty (DBSCAN)	ResNet50	Market1501	71.8	84.0	91.7	93.8	~5h

Requirements

Installation

git https://github.com/zkcys001/UDAStrongBaseline/
cd UDAStrongBaseline
pip install -r requirements
pip install faiss-gpu==1.6.3

Prepare Datasets

Download the person datasets DukeMTMC-reID, Market-1501, MSMT17, Then unzip them under the directory like

./data
├── dukemtmc
│  └── DukeMTMC-reID
├── market1501
│  └── Market-1501-v15.09.15
├── msmt17
   └── MSMT17_V1

You can create the soft link to the dataset:

ln -s /path-to-data ./data

ImageNet-pretrained models for ResNet-50 will be automatically downloaded in the python script.

Training

We utilize 4 GPUs for training. Note that

1. Stronger Baseline:

Stage I: Pretrain Model on Source Domain

Training the baseline in the source domain, run this command:

sh scripts/pretrain_market1501.sh

Stage II: End-to-end training with clustering

Utilizing the baseline based on DBSCAN clustering algorithm:

sh scripts/dbscan_baseline_market2duke.sh

2. Uncertainty(AAAI 2021):

Stage I: Pretrain Model on Source Domain

Training the uncertainty model in the source domain, run this command:

sh scripts/pretrain_uncertainty_dukemtmc.sh

Stage II: End-to-end training with clustering

Utilizing the uncertainty model based on DBSCAN clustering algorithm:

sh scripts/dbscan_uncertainty_duke2market.sh

3. GLT (group-aware label transfer, CVPR 2021):

Stage I: Pretrain Model on Source Domain

Training the GLT model in the source domain, run this command:

sh scripts/pretrain_dukemtmc.sh

Stage II: End-to-end training with clustering

Utilizing the GLT model based on K-means clustering algorithm:

sh scripts/GLT_kmeans_duke2market.sh

Acknowledgement

Some parts of UDAstrongbaseline are from MMT and fastreid. We would like to thank for these projects, and we will update our method .

Citation

If you find this code useful for your research, please use the following BibTeX entry.

@inproceedings{zheng2021exploiting,
  title={Exploiting Sample Uncertainty for Domain Adaptive Person Re-Identification},
  author={Zheng, Kecheng and Lan, Cuiling and Zeng, Wenjun and Zhang, Zhizheng and Zha, Zheng-Jun},
  booktitle={Proceedings of the AAAI Conference on Artificial Intelligence},
  volume={35},
  number={4},
  pages={3538--3546},
  year={2021}
}

@inproceedings{zheng2021group,
  title={Group-aware label transfer for domain adaptive person re-identification},
  author={Zheng, Kecheng and Liu, Wu and He, Lingxiao and Mei, Tao and Luo, Jiebo and Zha, Zheng-Jun},
  booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition},
  pages={5310--5319},
  year={2021}
}