<div align="center">
<img src="resources/mmflow-logo.png" width="600"/>
<div> </div>
<div align="center">
<b><font size="5">OpenMMLab website</font></b>
<sup>
<a href="https://openmmlab.com">
<i><font size="4">HOT</font></i>
</a>
</sup>
<b><font size="5">OpenMMLab platform</font></b>
<sup>
<a href="https://platform.openmmlab.com">
<i><font size="4">TRY IT OUT</font></i>
</a>
</sup>
</div>
<div> </div>
[](https://pypi.org/project/mmflow/)
[](https://pypi.org/project/mmflow)
[](https://mmflow.readthedocs.io/en/latest/)
[](https://github.com/open-mmlab/mmflow/actions)
[](https://codecov.io/gh/open-mmlab/mmflow)
[](https://github.com/open-mmlab/mmflow/blob/master/LICENSE)
[](https://github.com/open-mmlab/mmflow/issues)
[📘Documentation](https://mmflow.readthedocs.io/en/latest/) |
[🛠️Installation](https://mmflow.readthedocs.io/en/latest/install.html) |
[👀Model Zoo](https://mmflow.readthedocs.io/en/latest/model_zoo.html) |
[🤔Reporting Issues](https://github.com/open-mmlab/mmflow/issues/new/choose)
</div>
<div align="center">
English | [简体中文](README_zh-CN.md)
</div>
## Introduction
MMFlow is an open source optical flow toolbox based on PyTorch. It is a part of the [OpenMMLab](https://openmmlab.com/) project.
The master branch works with **PyTorch 1.5+**.
<https://user-images.githubusercontent.com/76149310/141947796-af4f1e67-60c9-48ed-9dd6-fcd809a7d991.mp4>
### Major features
- **The First Unified Framework for Optical Flow**
MMFlow is the first toolbox that provides a framework for unified implementation and evaluation of optical flow algorithms.
- **Flexible and Modular Design**
We decompose the flow estimation framework into different components,
which makes it much easy and flexible to build a new model by combining different modules.
- **Plenty of Algorithms and Datasets Out of the Box**
The toolbox directly supports popular and contemporary optical flow models, *e.g.* FlowNet, PWC-Net, RAFT, etc,
and representative datasets, FlyingChairs, FlyingThings3D, Sintel, KITTI, etc.
## What's New
**v0.5.2** was released in 01/10/2023:
- Add flow1d attention
Please refer to [changelog.md](docs/en/changelog.md) for details and release history.
## Installation
Please refer to [install.md](docs/en/install.md) for installation and
guidance in [dataset_prepare](docs/en/dataset_prepare.md) for dataset preparation.
## Get Started
If you're new of optical flow, you can start with [learn the basics](docs/en/intro.md). If you’re familiar with it, check out [getting_started](docs/en/getting_started.md) to try out MMFlow.
Refer to the below tutorials to dive deeper:
- [config](docs/en/tutorials/0_config.md)
- [model inference](docs/en/tutorials/1_inference.md)
- [fine tuning](docs/en/tutorials/2_finetune.md)
- [data pipeline](docs/en/tutorials/3_data_pipeline.md)
- [add new modules](docs/en/tutorials/4_new_modules.md)
- [customized runtime](docs/en/tutorials/5_customize_runtime.md)
## Benchmark and model zoo
Results and models are available in the [model zoo](docs/en/model_zoo.md).
Supported methods:
- [x] [FlowNet (ICCV'2015)](configs/flownet/README.md)
- [x] [FlowNet2 (CVPR'2017)](configs/flownet2/README.md)
- [x] [PWC-Net (CVPR'2018)](configs/pwcnet/README.md)
- [x] [LiteFlowNet (CVPR'2018)](configs/liteflownet/README.md)
- [x] [LiteFlowNet2 (TPAMI'2020)](configs/liteflownet2/README.md)
- [x] [IRR (CVPR'2019)](configs/irr/README.md)
- [x] [MaskFlownet (CVPR'2020)](configs/maskflownet/README.md)
- [x] [RAFT (ECCV'2020)](configs/raft/README.md)
- [x] [GMA (ICCV' 2021)](configs/gma/README.md)
## Contributing
We appreciate all contributions improving MMFlow. Please refer to [CONTRIBUTING.md](https://github.com/open-mmlab/mmcv/blob/master/CONTRIBUTING.md) in MMCV for more details about the contributing guideline.
## Acknowledgement
MMFlow is an open source project that is contributed by researchers and engineers from various colleges and companies. We appreciate all the contributors who implement their methods or add new features, as well as users who give valuable feedbacks.
We wish that the toolbox and benchmark could serve the growing research community by providing a flexible toolkit to reimplement existing methods and develop their own new flow algorithm.
## Citation
If you use this toolbox or benchmark in your research, please cite this project.
```BibTeX
@misc{2021mmflow,
title={{MMFlow}: OpenMMLab Optical Flow Toolbox and Benchmark},
author={MMFlow Contributors},
howpublished = {\url{https://github.com/open-mmlab/mmflow}},
year={2021}
}
```
## License
This project is released under the [Apache 2.0 license](LICENSE).
## Projects in OpenMMLab
- [MMCV](https://github.com/open-mmlab/mmcv): OpenMMLab foundational library for computer vision.
- [MIM](https://github.com/open-mmlab/mim): MIM installs OpenMMLab packages.
- [MMClassification](https://github.com/open-mmlab/mmclassification): OpenMMLab image classification toolbox and benchmark.
- [MMDetection](https://github.com/open-mmlab/mmdetection): OpenMMLab detection toolbox and benchmark.
- [MMDetection3D](https://github.com/open-mmlab/mmdetection3d): OpenMMLab's next-generation platform for general 3D object detection.
- [MMRotate](https://github.com/open-mmlab/mmrotate): OpenMMLab rotated object detection toolbox and benchmark.
- [MMSegmentation](https://github.com/open-mmlab/mmsegmentation): OpenMMLab semantic segmentation toolbox and benchmark.
- [MMOCR](https://github.com/open-mmlab/mmocr): OpenMMLab text detection, recognition, and understanding toolbox.
- [MMPose](https://github.com/open-mmlab/mmpose): OpenMMLab pose estimation toolbox and benchmark.
- [MMHuman3D](https://github.com/open-mmlab/mmhuman3d): OpenMMLab 3D human parametric model toolbox and benchmark.
- [MMSelfSup](https://github.com/open-mmlab/mmselfsup): OpenMMLab self-supervised learning toolbox and benchmark.
- [MMRazor](https://github.com/open-mmlab/mmrazor): OpenMMLab model compression toolbox and benchmark.
- [MMFewShot](https://github.com/open-mmlab/mmfewshot): OpenMMLab fewshot learning toolbox and benchmark.
- [MMAction2](https://github.com/open-mmlab/mmaction2): OpenMMLab's next-generation action understanding toolbox and benchmark.
- [MMTracking](https://github.com/open-mmlab/mmtracking): OpenMMLab video perception toolbox and benchmark.
- [MMFlow](https://github.com/open-mmlab/mmflow): OpenMMLab optical flow toolbox and benchmark.
- [MMEditing](https://github.com/open-mmlab/mmediting): OpenMMLab image and video editing toolbox.
- [MMGeneration](https://github.com/open-mmlab/mmgeneration): OpenMMLab image and video generative models toolbox.
- [MMDeploy](https://github.com/open-mmlab/mmdeploy): OpenMMLab Model Deployment Framework.
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"description": "<div align=\"center\">\n <img src=\"resources/mmflow-logo.png\" width=\"600\"/>\n <div> </div>\n <div align=\"center\">\n <b><font size=\"5\">OpenMMLab website</font></b>\n <sup>\n <a href=\"https://openmmlab.com\">\n <i><font size=\"4\">HOT</font></i>\n </a>\n </sup>\n \n <b><font size=\"5\">OpenMMLab platform</font></b>\n <sup>\n <a href=\"https://platform.openmmlab.com\">\n <i><font size=\"4\">TRY IT OUT</font></i>\n </a>\n </sup>\n </div>\n <div> </div>\n\n[](https://pypi.org/project/mmflow/)\n[](https://pypi.org/project/mmflow)\n[](https://mmflow.readthedocs.io/en/latest/)\n[](https://github.com/open-mmlab/mmflow/actions)\n[](https://codecov.io/gh/open-mmlab/mmflow)\n[](https://github.com/open-mmlab/mmflow/blob/master/LICENSE)\n[](https://github.com/open-mmlab/mmflow/issues)\n\n[\ud83d\udcd8Documentation](https://mmflow.readthedocs.io/en/latest/) |\n[\ud83d\udee0\ufe0fInstallation](https://mmflow.readthedocs.io/en/latest/install.html) |\n[\ud83d\udc40Model Zoo](https://mmflow.readthedocs.io/en/latest/model_zoo.html) |\n[\ud83e\udd14Reporting Issues](https://github.com/open-mmlab/mmflow/issues/new/choose)\n\n</div>\n\n<div align=\"center\">\n\nEnglish | [\u7b80\u4f53\u4e2d\u6587](README_zh-CN.md)\n\n</div>\n\n## Introduction\n\nMMFlow is an open source optical flow toolbox based on PyTorch. It is a part of the [OpenMMLab](https://openmmlab.com/) project.\n\nThe master branch works with **PyTorch 1.5+**.\n\n<https://user-images.githubusercontent.com/76149310/141947796-af4f1e67-60c9-48ed-9dd6-fcd809a7d991.mp4>\n\n### Major features\n\n- **The First Unified Framework for Optical Flow**\n\n MMFlow is the first toolbox that provides a framework for unified implementation and evaluation of optical flow algorithms.\n\n- **Flexible and Modular Design**\n\n We decompose the flow estimation framework into different components,\n which makes it much easy and flexible to build a new model by combining different modules.\n\n- **Plenty of Algorithms and Datasets Out of the Box**\n\n The toolbox directly supports popular and contemporary optical flow models, *e.g.* FlowNet, PWC-Net, RAFT, etc,\n and representative datasets, FlyingChairs, FlyingThings3D, Sintel, KITTI, etc.\n\n## What's New\n\n**v0.5.2** was released in 01/10/2023:\n\n- Add flow1d attention\n\nPlease refer to [changelog.md](docs/en/changelog.md) for details and release history.\n\n## Installation\n\nPlease refer to [install.md](docs/en/install.md) for installation and\nguidance in [dataset_prepare](docs/en/dataset_prepare.md) for dataset preparation.\n\n## Get Started\n\nIf you're new of optical flow, you can start with [learn the basics](docs/en/intro.md). If you\u2019re familiar with it, check out [getting_started](docs/en/getting_started.md) to try out MMFlow.\n\nRefer to the below tutorials to dive deeper:\n\n- [config](docs/en/tutorials/0_config.md)\n\n- [model inference](docs/en/tutorials/1_inference.md)\n\n- [fine tuning](docs/en/tutorials/2_finetune.md)\n\n- [data pipeline](docs/en/tutorials/3_data_pipeline.md)\n\n- [add new modules](docs/en/tutorials/4_new_modules.md)\n\n- [customized runtime](docs/en/tutorials/5_customize_runtime.md)\n\n## Benchmark and model zoo\n\nResults and models are available in the [model zoo](docs/en/model_zoo.md).\n\nSupported methods:\n\n- [x] [FlowNet (ICCV'2015)](configs/flownet/README.md)\n- [x] [FlowNet2 (CVPR'2017)](configs/flownet2/README.md)\n- [x] [PWC-Net (CVPR'2018)](configs/pwcnet/README.md)\n- [x] [LiteFlowNet (CVPR'2018)](configs/liteflownet/README.md)\n- [x] [LiteFlowNet2 (TPAMI'2020)](configs/liteflownet2/README.md)\n- [x] [IRR (CVPR'2019)](configs/irr/README.md)\n- [x] [MaskFlownet (CVPR'2020)](configs/maskflownet/README.md)\n- [x] [RAFT (ECCV'2020)](configs/raft/README.md)\n- [x] [GMA (ICCV' 2021)](configs/gma/README.md)\n\n## Contributing\n\nWe appreciate all contributions improving MMFlow. Please refer to [CONTRIBUTING.md](https://github.com/open-mmlab/mmcv/blob/master/CONTRIBUTING.md) in MMCV for more details about the contributing guideline.\n\n## Acknowledgement\n\nMMFlow is an open source project that is contributed by researchers and engineers from various colleges and companies. 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