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OpenGait release(pre-beta version).

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**Note:**
This code is only used for **academic purposes**, people cannot use this code for anything that might be considered commercial use.
# OpenGait
OpenGait is a flexible and extensible gait recognition project provided by the [Shiqi Yu Group](https://faculty.sustech.edu.cn/yusq/) and supported in part by [WATRIX.AI](http://www.watrix.ai). Just the pre-beta version is released now, and more documentations as well as the reproduced methods will be offered as soon as possible.
**Highlighted features:**
- **Multiple Models Support**: We reproduced several SOTA methods, and reached the same or even better performance.
- **DDP Support**: The officially recommended [`Distributed Data Parallel (DDP)`](https://pytorch.org/tutorials/intermediate/ddp_tutorial.html) mode is used during the training and testing phases.
- **AMP Support**: The [`Auto Mixed Precision (AMP)`](https://pytorch.org/tutorials/recipes/recipes/amp_recipe.html?highlight=amp) option is available.
- **Nice log**: We use [`tensorboard`](https://pytorch.org/docs/stable/tensorboard.html) and `logging` to log everything, which looks pretty.
# Model Zoo
| Model | NM | BG | CL | Configuration | Input Size | Inference Time | Model Size |
| :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :--------: | :--------: | :--------: | :------------------------------------------------------------------------------------------- | :--------: | :------------: | :--------------: |
| Baseline | 96.3 | 92.2 | 77.6 | [baseline.yaml](config/baseline.yaml) | 64x44 | 12s | 3.78M |
| [GaitSet(AAAI2019)](https://arxiv.org/pdf/1811.06186.pdf) | 95.8(95.0) | 90.0(87.2) | 75.4(70.4) | [gaitset.yaml](config/gaitset.yaml) | 64x44 | 11s | 2.59M |
| [GaitPart(CVPR2020)](http://home.ustc.edu.cn/~saihui/papers/cvpr2020_gaitpart.pdf) | 96.1(96.2) | 90.7(91.5) | 78.7(78.7) | [gaitpart.yaml](config/gaitpart.yaml) | 64x44 | 22s | 1.20M |
| [GLN*(ECCV2020)](http://home.ustc.edu.cn/~saihui/papers/eccv2020_gln.pdf) | 96.1(95.6) | 92.5(92.0) | 80.4(77.2) | [gln_phase1.yaml](config/gln/gln_phase1.yaml), [gln_phase2.yaml](config/gln/gln_phase2.yaml) | 128x88 | 14s | 9.46M / 15.6214M |
| [GaitGL(ICCV2021)](https://openaccess.thecvf.com/content/ICCV2021/papers/Lin_Gait_Recognition_via_Effective_Global-Local_Feature_Representation_and_Local_Temporal_ICCV_2021_paper.pdf) | 97.5(97.4) | 95.1(94.5) | 83.5(83.6) | [gaitgl.yaml](config/gaitgl.yaml) | 64x44 | 31s | 3.10M |
**Note**:
- All the models were tested on [CASIA-B](http://www.cbsr.ia.ac.cn/english/Gait%20Databases.asp) (Rank@1, excluding identical-view cases).
- The results in the parentheses are mentioned in the papers
- The shown result of GLN is implemented without compact block.
- Only 2 RTX6000 are used during the inference phase.
- The results on [OUMVLP](http://www.am.sanken.osaka-u.ac.jp/BiometricDB/GaitMVLP.html) will be released soon.
It's inference process just cost about 90 secs(Baseline & 8 RTX6000).
# Get Started
## Installation
1. clone this repo.
2. Install dependenices:
- pytorch >= 1.6
- torchvision
- pyyaml
- tensorboard
- opencv-python
- tqdm
## Prepare dataset
See [prepare dataset](doc/prepare_dataset.md).
## Train
Train a model by
```
CUDA_VISIBLE_DEVICES=0,1 python -m torch.distributed.launch --nproc_per_node=2 lib/main.py --cfgs ./config/baseline.yaml --phase train
```
- `python -m torch.distributed.launch` Our implementation uses DistributedDataParallel.
- `--nproc_per_node` The number of gpu to use, it must equal the length of `CUDA_VISIBLE_DEVICES`.
- `--cfgs` The path of config file.
- `--phase` Specified as `train`.
- `--iter` You can specify a number of iterations or use `restore_hint` in the configuration file and resume training from there.
- `--log_to_file` If specified, log will be written on disk simultaneously.
You can run commands in [train.sh](train.sh) for training different models.
## Test
Use trained model to evaluate by
```
CUDA_VISIBLE_DEVICES=0,1 python -m torch.distributed.launch --nproc_per_node=2 lib/main.py --cfgs ./config/baseline.yaml --phase test
```
- `--phase` Specified as `test`.
- `--iter` You can specify a number of iterations or or use `restore_hint` in the configuration file and restore model from there.
**Tip**: Other arguments are the same as train phase.
You can run commands in [test.sh](test.sh) for testing different models.
## Customize
If you want customize your own model, see [here](doc/how_to_create_your_model.md).
# Warning
- Some models may not be compatible with `AMP`, you can disable it by setting `enable_float16` **False**.
- In `DDP` mode, zombie processes may occur when the program terminates abnormally. You can use this command `kill $(ps aux | grep main.py | grep -v grep | awk '{print $2}')` to clear them.
- We implemented the functionality of testing while training, but it slightly affected the results. None of our published models use this functionality. You can disable it by setting `with_test` **False**.
# Authors:
**Open Gait Team (OGT)**
- [Chao Fan (樊超)](https://faculty.sustech.edu.cn/?p=128578&tagid=yusq&cat=2&iscss=1&snapid=1&orderby=date)
- [Chuanfu Shen (沈川福)](https://faculty.sustech.edu.cn/?p=95396&tagid=yusq&cat=2&iscss=1&snapid=1&orderby=date)
- [Junhao Liang (梁峻豪)](https://faculty.sustech.edu.cn/?p=95401&tagid=yusq&cat=2&iscss=1&snapid=1&orderby=date)
# Acknowledgement
- GLN: [Saihui Hou (侯赛辉)](http://home.ustc.edu.cn/~saihui/index_english.html)
- GaitGL: Beibei Lin (林贝贝)