The offical implementation for the "NOH-NMS: Improving Pedestrian Detection by Nearby Objects Hallucination" which is published in ACM MM 2020.

We propose Nearby Objects Hallucinator (NOH), which pinpoints the objects nearby each proposal with a Gaussian distribution, together with NOH-NMS, which dynamically eases the suppression for the space that might contain other objects with a high likelihood.

This work has won the first place at the CrowdHuman Challenge, 2020.

• This repo is implemented based on detectron2.

Download the CrowdHuman Datasets from http://www.crowdhuman.org/, and then move them under the directory like:

./data/crowdhuman
├── annotations
│   └── annotation_train.odgt
│   └── annotation_val.odgt
├── images
│   └── train
│   └── val

  cd detectron2
  pip install -e . 
  #or rebuild
  sh build.sh

See GETTING_STARTED.md in detectron2

• detectron2

if you find this project useful for your research, please cite:

@inproceedings{zhou2020noh,
  title={NOH-NMS: Improving Pedestrian Detection by Nearby Objects Hallucination},
  author={Zhou, Penghao and Zhou, Chong and Peng, Pai and Du, Junlong and Sun, Xing and Guo, Xiaowei and Huang, Feiyue},
  booktitle={Proceedings of the 28th ACM International Conference on Multimedia},
  pages={1967--1975},
  year={2020}
}