Video to Pose3D

Predict 3d human pose from video

Prerequisite

1. Environment
   • Linux system
   • Python > 3.6 distribution
2. Dependencies
   • Packages
     • Pytorch > 0.4.0
     • torchsample
     • ffmpeg
     • tqdm
     • pillow
     • scipy
     • pandas
     • h5py
     • visdom
     • nibabel
     • opencv-python (install with pip)
     • matplotlib
   • 2D Joint detectors
     • Alphapose (Recommended)
       • Download duc_se.pth from (Google Drive | Baidu pan), place to ./joints_detectors/Alphapose/models/sppe
       • Download yolov3-spp.weights from (Google Drive | Baidu pan), place to ./joints_detectors/Alphapose/models/yolo
     • HR-Net (Bad 3d joints performance in my testing environment)
       • Download pose_hrnet* from Google Drive, place to ./joints_detectors/hrnet/models/pytorch/pose_coco/
       • Download yolov3.weights from here, place to ./joints_detectors/hrnet/lib/detector/yolo
     • OpenPose (Not tested, PR to README.md is highly appreciated )
   • 3D Joint detectors
     • Download pretrained_h36m_detectron_coco.bin from here, place it into ./checkpoint folder
   • 2D Pose trackers (Optional)
     • PoseFlow (Recommended) No extra dependences
     • LightTrack (Bad 2d tracking performance in my testing environment)
       • See original README, and perform same get started step on ./pose_trackers/lighttrack

Usage

0. place your video into ./outputs folder. (I've prepared a test video).

Single person video

1. change the video_path in the ./videopose.py
2. Run it! You will find the rendered output video in the ./outputs folder.

Multiple person video (Not implemented yet)

1. For developing, check ./videopose_multi_person

   video = 'kobe.mp4'
   
   handle_video(f'outputs/{video}') 
   # Run AlphaPose, save the result into ./outputs/alpha_pose_kobe
   
   track(video)					 
   # Taking the result from above as the input of PoseTrack, output poseflow-results.json # into the same directory of above. 
   # The visualization result is save in ./outputs/alpha_pose_kobe/poseflow-vis
   
   # TODO: Need more action:
   #  1. "Improve the accuracy of tracking algorithm" or "Doing specific post processing 
   #     after getting the track result".
   #  2. Choosing person(remove the other 2d points for each frame)

Tips

0. The PyCharm is recommended since it is the IDE I'm using during development.
1. If you're using PyCharm, mark ./joints_detectors/Alphapose, ./joints_detectors/hrnet and ./pose_trackers as source root.
2. If your're trying to run in command line, add these paths mentioned above to the sys.path at the head of ./videopose.py

Advanced

As this script is based on the VedioPose3D provided by Facebook, and automated in the following way:

args = parse_args()

args.detector_2d = 'alpha_pose'
dir_name = os.path.dirname(video_path)
basename = os.path.basename(video_path)
video_name = basename[:basename.rfind('.')]
args.viz_video = video_path
args.viz_output = f'{dir_name}/{args.detector_2d}_{video_name}.gif'

args.evaluate = 'pretrained_h36m_detectron_coco.bin'

with Timer(video_path):
    main(args)

The meaning of arguments can be found here, you can customize it conveniently by changing the args in ./videopose.py.

Acknowledgement

The 2D pose to 3D pose and visualization part is from VideoPose3D.

Some of the "In the wild" script is adapted from the other fork.

The project structure and ./videopose.py running script is adapted from this repo

Coming soon

The other feature will be added to improve accuracy in the future:

• Human completeness check.
• Object Tracking to the first complete human covering largest area.
• Change 2D pose estimation method such as AlphaPose.
• Test HR-Net as 2d joints detector.
• Test LightTrack as pose tracker.
• Multi-person video(complex) support.
• Data augmentation to solve "high-speed with low-rate" problem: SLOW-MO.