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[ICCV 2023] ReST: A Reconfigurable Spatial-Temporal Graph Model for Multi-Camera Multi-Object Tracking

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ReST 🛌 (ICCV2023)

ReST: A Reconfigurable Spatial-Temporal Graph Model for Multi-Camera Multi-Object Tracking

Cheng-Che Cheng1  Min-Xuan Qiu1  Chen-Kuo Chiang2  Shang-Hong Lai1 

1National Tsing Hua University, Taiwan  2National Chung Cheng University, Taiwan

arXiv thecvf thecvf PWC

News

  • 2023.8 Code release
  • 2023.7 Our paper is accepted to ICCV 2023!

Introduction

ReST, a novel reconfigurable graph model, that first associates all detected objects across cameras spatially before reconfiguring it into a temporal graph for Temporal Association. This two-stage association approach enables us to extract robust spatial and temporal-aware features and address the problem with fragmented tracklets. Furthermore, our model is designed for online tracking, making it suitable for real-world applications. Experimental results show that the proposed graph model is able to extract more discriminating features for object tracking, and our model achieves state-of-the-art performance on several public datasets.

Requirements

Installation

  1. Clone the project and create virtual environment

    git clone https://github.com/chengche6230/ReST.git
    conda create --name ReST python=3.8
    conda activate ReST
  2. Install (follow instructions):

    • torchreid
    • DGL (also check PyTorch/CUDA compatibility table below)
    • warmup_scheduler
    • py-motmetrics
    • Reference commands:
      # torchreid
      git clone https://github.com/KaiyangZhou/deep-person-reid.git
      cd deep-person-reid/
      pip install -r requirements.txt
      conda install pytorch torchvision cudatoolkit=9.0 -c pytorch
      python setup.py develop
      
      # other packages (in /ReST)
      conda install -c dglteam/label/cu117 dgl
      pip install git+https://github.com/ildoonet/pytorch-gradual-warmup-lr.git
      pip install motmetrics
  3. Install other requirements

    pip install -r requirements.txt
  4. Download pre-trained ReID model

Datasets

  1. Place datasets in ./datasets/ as:
./datasets/
├── CAMPUS/
│   ├── Garden1/
│   │   └── view-{}.txt
│   ├── Garden2/
│   │   └── view-HC{}.txt
│   ├── Parkinglot/
│   │   └── view-GL{}.txt
│   └── metainfo.json
├── PETS09/
│   ├── S2L1/
│   │   └── View_00{}.txt
│   └── metainfo.json
├── Wildtrack/
│   ├── sequence1/
│   │   └── src/
│   │       ├── annotations_positions/
│   │       └── Image_subsets/
│   └── metainfo.json
└── {DATASET_NAME}/ # for customized dataset
    ├── {SEQUENCE_NAME}/
    │   └── {ANNOTATION_FILE}.txt
    └── metainfo.json
  1. Prepare all metainfo.json files (e.g. frames, file pattern, homography)
  2. Run for each dataset:
    python ./src/datasets/preprocess.py --dataset {DATASET_NAME}
    Check ./datasets/{DATASET_NAME}/{SEQUENCE_NAME}/output if there is anything missing:
    /output/
    ├── gt_MOT/ # for motmetrics
    │   └── c{CAM}.txt
    ├── gt_train.json
    ├── gt_eval.json
    ├── gt_test.json
    └── {DETECTOR}_test.json # if you want to use other detector, e.g. yolox_test.json
    
  3. Prepare all image frames as {FRAME}_{CAM}.jpg in /output/frames.

Model Zoo

Download trained weights if you need, and modify TEST.CKPT_FILE_SG & TEST.CKPT_FILE_TG in ./configs/{DATASET_NAME}.yml.

Dataset Spatial Graph Temporal Graph
Wildtrack sequence1 sequence1
CAMPUS Garden1
Garden2
Parkinglot
Garden1
Garden2
Parkinglot
PETS-09 S2L1 S2L1

Training

To train our model, basically run the command:

python main.py --config_file ./configs/{DATASET_NAME}.yml

In {DATASET_NAME}.yml:

  • Modify MODEL.MODE to 'train'
  • Modify SOLVER.TYPE to train specific graphs.
  • Make sure all settings are suitable for your device, e.g. DEVICE_ID, BATCH_SIZE.
  • You can also directly append attributes after the command for convenience, e.g.:
    python main.py --config_file ./configs/Wildtrack.yml MODEL.DEVICE_ID "('1')" SOLVER.TYPE "SG"

Testing

python main.py --config_file ./configs/{DATASET_NAME}.yml

In {DATASET_NAME}.yml:

  • Modify MODEL.MODE to 'test'.
  • Select what input detection you want, and modify MODEL.DETECTION.
    • You need to prepare {DETECTOR}_test.json in ./datasets/{DATASET_NAME}/{SEQUENCE_NAME}/output/ by your own first.
  • Make sure all settings in TEST are configured.

DEMO

Wildtrack

Acknowledgement

  • Thanks for the codebase from the re-implementation of GNN-CCA (arXiv).

Citation

If you find this code useful for your research, please cite our paper

@InProceedings{Cheng_2023_ICCV,
    author    = {Cheng, Cheng-Che and Qiu, Min-Xuan and Chiang, Chen-Kuo and Lai, Shang-Hong},
    title     = {ReST: A Reconfigurable Spatial-Temporal Graph Model for Multi-Camera Multi-Object Tracking},
    booktitle = {Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV)},
    month     = {October},
    year      = {2023},
    pages     = {10051-10060}
}