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This repository hosts the source code of our paper: ASTD.

major challenges:

The network structure:

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🔥 NEWS 🔥

• [07/2024] 📣We released the code.

Installation

Run pip install -r requirements.txt in the root directory of the project.

Quick Start

Let's say $ROOT is the root directory.

1. Download CUHK-SYSU and PRW datasets, and unzip them to $ROOT/data

data
├── CUHK-SYSU
├── PRW
exp_cuhk
├── config.yaml
├── epoch_xx.pth
├── epoch_xx.pth
exp_prw
├── config.yaml
├── epoch_xx.pth 
├── epoch_xx.pth

2. Following the link in the above table, download our pretrained model to anywhere you like, e.g., $ROOT/exp_cuhk
3. Run an inference demo by specifing the paths of checkpoint and corresponding configuration file. You can checkout the result in demo_imgs directory.

CUHK-SYSU：

CUDA_VISIBLE_DEVICES=0 python demo.py --cfg ./configs/cuhk_sysu.yaml --ckpt ./logs/cuhk-sysu/xxx.pth

PRW：

CUDA_VISIBLE_DEVICES=0 python demo.py --cfg ./configs/prw.yaml --ckpt ./logs/prw/xxx.pth

Please see the Demo photo:

Training

Pick one configuration file you like in $ROOT/configs, and run with it.

python train.py --cfg configs/cuhk_sysu.yaml

Note: At present, our script only supports single GPU training, but distributed training will be also supported in future. By default, the batch size and the learning rate during training are set to 3 and 0.003 respectively, which requires about 28GB of GPU memory. If your GPU cannot provide the required memory, try smaller batch size and learning rate (performance may degrade). Specifically, your setting should follow the Linear Scaling Rule: When the minibatch size is multiplied by k, multiply the learning rate by k. For example:

CUHK:
CUDA_VISIBLE_DEVICES=0 python train.py --cfg configs/cuhk_sysu.yaml INPUT.BATCH_SIZE_TRAIN 3 SOLVER.BASE_LR 0.003 SOLVER.MAX_EPOCHS 20 SOLVER.LR_DECAY_MILESTONES [11] MODEL.LOSS.USE_SOFTMAX True SOLVER.LW_RCNN_SOFTMAX_2ND 0.1 SOLVER.LW_RCNN_SOFTMAX_3RD 0.1 OUTPUT_DIR ./logs/cuhk-sysu

if out of memory, run this：
CUDA_VISIBLE_DEVICES=0 python train.py --cfg configs/cuhk_sysu.yaml INPUT.BATCH_SIZE_TRAIN 2 SOLVER.BASE_LR 0.0012 SOLVER.MAX_EPOCHS 20 SOLVER.LR_DECAY_MILESTONES [11] MODEL.LOSS.USE_SOFTMAX True SOLVER.LW_RCNN_SOFTMAX_2ND 0.1 SOLVER.LW_RCNN_SOFTMAX_3RD 0.1 OUTPUT_DIR ./logs/cuhk-sysu
PRW:
CUDA_VISIBLE_DEVICES=0 python train.py --cfg configs/prw.yaml INPUT.BATCH_SIZE_TRAIN 3 SOLVER.BASE_LR 0.003 SOLVER.MAX_EPOCHS 14 SOLVER.LR_DECAY_MILESTONES [11] MODEL.LOSS.USE_SOFTMAX True SOLVER.LW_RCNN_SOFTMAX_2ND 0.1 SOLVER.LW_RCNN_SOFTMAX_3RD 0.1 OUTPUT_DIR ./logs/prw 

Tip: If the training process stops unexpectedly, you can resume from the specified checkpoint.

python train.py --cfg configs/cuhk_sysu.yaml --resume --ckpt /path/to/your/checkpoint

Test

Suppose the output directory is $ROOT/exp_cuhk. Test the trained model:

For CUHK-SYSU：

CUDA_VISIBLE_DEVICES=0 python train.py --cfg ./configs/cuhk_sysu.yaml --eval --ckpt ./logs/cuhk-sysu/xxx.pth

Test with Context Bipartite Graph Matching algorithm:

CUDA_VISIBLE_DEVICES=0 python train.py --cfg ./configs/cuhk_sysu.yaml --eval --ckpt ./logs/cuhk-sysu/xxx.pth EVAL_USE_CBGM True

Test the upper bound of the person search performance by using GT boxes:

CUDA_VISIBLE_DEVICES=0 python train.py --cfg ./configs/cuhk_sysu.yaml --eval --ckpt ./logs/cuhk-sysu/xxx.pth EVAL_USE_GT True

For PRW：

CUDA_VISIBLE_DEVICES=0 python train.py --cfg ./configs/prw.yaml --eval --ckpt ./logs/prw/xxx.pth EVAL_USE_CBGM True

Comparison with SOTA:

Evaluation of different gallery size:

Remember that when you test other code, you still need to set it to 100！！

Visualization of ASA:

Qualitative Results:

Acknowledgment

Thanks to the authors of the following repos for their code, which was integral in this project:

• COAT
• SeqNet
• NAE
• GFN
• PSTR
• GLCNet
• torchvision

Pull Request

Pull request is welcomed! Before submitting a PR, DO NOT forget to run ./dev/linter.sh that provides syntax checking and code style optimation.

Citation

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

@inproceedings{zqx2024,
  title={xxxx},
  author={Zhang, Qixian and Miao, Duoqian},
  booktitle={xxxxxx},
  volume={xx},
  number={x},
  pages={xxx--xxx},

@inproceedings{li2021sequential,
  title={Sequential End-to-end Network for Efficient Person Search},
  author={Li, Zhengjia and Miao, Duoqian},
  booktitle={Proceedings of the AAAI Conference on Artificial Intelligence},
  volume={35},
  number={3},
  pages={2011--2019},
  year={2021}
}

Contact

If you have any question, please feel free to contact us. E-mail: [email protected]