AlphaPose

Alpha Pose is an accurate multi-person pose estimator, which is the first real-time open-source system that achieves 70+ mAP (72.3 mAP) on COCO dataset and 80+ mAP (82.1 mAP) on MPII dataset.** To match poses that correspond to the same person across frames, we also provide an efficient online pose tracker called Pose Flow. It is the first open-source online pose tracker that achieves both 60+ mAP (66.5 mAP) and 50+ MOTA (58.3 MOTA) on PoseTrack Challenge dataset.

News!

• Apr 2019: MXNet version of AlphaPose is released! It runs at 23 fps on COCO validation set.
• Feb 2019: CrowdPose is integrated into AlphaPose Now!
• Dec 2018: General version of PoseFlow is released! 3X Faster and support pose tracking results visualization!
• Sep 2018: PyTorch version of AlphaPose is released! It runs at 20 fps on COCO validation set (4.6 people per image on average) and achieves 71 mAP!

Contents

• AlphaPose
• News!
• Contents
• Results
  • Pose Estimation
  • Pose Tracking
  • CrowdPose
• Installation
• Quick Start
• Output
• Speeding Up AlphaPose
• Feedbacks
• Contributors
• Citation
• License

Results

Pose Estimation

Results on COCO test-dev 2015:

Method	AP @0.5:0.95	AP @0.5	AP @0.75	AP medium	AP large
OpenPose (CMU-Pose)	61.8	84.9	67.5	57.1	68.2
Detectron (Mask R-CNN)	67.0	88.0	73.1	62.2	75.6
AlphaPose	72.3	89.2	79.1	69.0	78.6

Results on MPII full test set:

Method	Head	Shoulder	Elbow	Wrist	Hip	Knee	Ankle	Ave
OpenPose (CMU-Pose)	91.2	87.6	77.7	66.8	75.4	68.9	61.7	75.6
Newell & Deng	92.1	89.3	78.9	69.8	76.2	71.6	64.7	77.5
AlphaPose	91.3	90.5	84.0	76.4	80.3	79.9	72.4	82.1

Pose Tracking

Results on PoseTrack Challenge validation set:

1. Task2: Multi-Person Pose Estimation (mAP)

Method	Head mAP	Shoulder mAP	Elbow mAP	Wrist mAP	Hip mAP	Knee mAP	Ankle mAP	Total mAP
Detect-and-Track(FAIR)	67.5	70.2	62	51.7	60.7	58.7	49.8	60.6
AlphaPose	66.7	73.3	68.3	61.1	67.5	67.0	61.3	66.5

2. Task3: Pose Tracking (MOTA)

Method	Head MOTA	Shoulder MOTA	Elbow MOTA	Wrist MOTA	Hip MOTA	Knee MOTA	Ankle MOTA	Total MOTA	Total MOTP	Speed(FPS)
Detect-and-Track(FAIR)	61.7	65.5	57.3	45.7	54.3	53.1	45.7	55.2	61.5	Unknown
PoseFlow(DeepMatch)	59.8	67.0	59.8	51.6	60.0	58.4	50.5	58.3	67.8	8
PoseFlow(OrbMatch)	59.0	66.8	60.0	51.8	59.4	58.4	50.3	58.0	62.2	24

Note: Please read PoseFlow/README.md for details.

CrowdPose

Results on CrowdPose Validation:

Compare with state-of-the-art methods

Method	AP @0.5:0.95	AP @0.5	AP @0.75	AR @0.5:0.95	AR @0.5	AR @0.75
Detectron (Mask R-CNN)	57.2	83.5	60.3	65.9	89.3	69.4
Simple Pose (Xiao et al.)	60.8	81.4	65.7	67.3	86.3	71.8
Ours	66.0	84.2	71.5	72.7	89.5	77.5

Compare with open-source systems

Method	AP @Easy	AP @Medium	AP @Hard	FPS
OpenPose (CMU-Pose)	62.7	48.7	32.3	5.3
Detectron (Mask R-CNN)	69.4	57.9	45.8	2.9
Ours (PyTorch branch)	75.5	66.3	57.4	10.1

Note: Please read doc/CrowdPose.md for details.

Installation

Note: For new users or users that are not familiar with TensorFlow or Torch, we suggest using the PyTorch version since it's more user-friendly and runs faster.

1. Get the code and build related modules.

git clone https://github.com/MVIG-SJTU/AlphaPose.git
cd AlphaPose/human-detection/lib/
make clean
make
cd newnms/
make
cd ../../../

2. Install Torch and TensorFlow(verson >= 1.2). After that, install related dependencies by:

chmod +x install.sh
./install.sh

3. Run fetch_models.sh to download our pre-trained models. Or download the models manually: output.zip(Google drive|Baidu pan), final_model.t7(Google drive|Baidu pan)

chmod +x fetch_models.sh
./fetch_models.sh

Quick Start

• Demo: Run AlphaPose for all images in a folder and visualize the results with:

./run.sh --indir examples/demo/ --outdir examples/results/ --vis

The visualized results will be stored in examples/results/RENDER. To easily process images/video and display/save the results, please see doc/run.md. If you get any problems, you can check the doc/faq.md.

• Video: You can see our video demo here.

Output

Output (format, keypoint index ordering, etc.) in doc/output.md.

Speeding Up AlphaPose

We provide a fast mode for human-detection that disables multi-scale testing. You can turn it on by adding --mode fast.

And if you have multiple gpus on your machine or have large gpu memories, you can speed up the pose estimation step by using multi-gpu testing or large batch tesing with:

./run.sh --indir examples/demo/ --outdir examples/results/ --gpu 0,1,2,3 --batch 5

It assumes that you have 4 gpu cards on your machine and each card can run a batch of 5 images. Here is the recommended batch size for gpu with different size of memory:

GPU memory: 4GB -- batch size: 3
GPU memory: 8GB -- batch size: 6
GPU memory: 12GB -- batch size: 9

See doc/run.md for more details.

Feedbacks

If you get any problems, you can check the doc/faq.md first. If it can not solve your problems or if you find any bugs, don't hesitate to comment on GitHub or make a pull request!

Contributors

AlphaPose is based on RMPE(ICCV'17), authored by Hao-shu Fang, Shuqin Xie, Yu-Wing Tai and Cewu Lu, Cewu Lu is the corresponding author. Currently, it is developed and maintained by Hao-shu Fang, Jiefeng Li, Yuliang Xiu and Ruiheng Chang.

The main contributors are listed in doc/contributors.md.

Citation

Please cite these papers in your publications if it helps your research:

@inproceedings{fang2017rmpe,
  title={{RMPE}: Regional Multi-person Pose Estimation},
  author={Fang, Hao-Shu and Xie, Shuqin and Tai, Yu-Wing and Lu, Cewu},
  booktitle={ICCV},
  year={2017}
}

@inproceedings{xiu2018poseflow,
  title = {{Pose Flow}: Efficient Online Pose Tracking},
  author = {Xiu, Yuliang and Li, Jiefeng and Wang, Haoyu and Fang, Yinghong and Lu, Cewu},
  booktitle={BMVC},
  year = {2018}
}

License

AlphaPose is freely available for free non-commercial use, and may be redistributed under these conditions. For commercial queries, please drop an e-mail at mvig.alphapose[at]gmail[dot]com and cc lucewu[[at]sjtu[dot]edu[dot]cn. We will send the detail agreement to you.