1.8 KiB
3D human pose estimation in video with temporal convolutions and semi-supervised training
VideoPose3D (CVPR'2019)
@inproceedings{pavllo20193d,
title={3d human pose estimation in video with temporal convolutions and semi-supervised training},
author={Pavllo, Dario and Feichtenhofer, Christoph and Grangier, David and Auli, Michael},
booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition},
pages={7753--7762},
year={2019}
}
Abstract
In this work, we demonstrate that 3D poses in video can be effectively estimated with a fully convolutional model based on dilated temporal convolutions over 2D keypoints. We also introduce back-projection, a simple and effective semi-supervised training method that leverages unlabeled video data. We start with predicted 2D keypoints for unlabeled video, then estimate 3D poses and finally back-project to the input 2D keypoints. In the supervised setting, our fully-convolutional model outperforms the previous best result from the literature by 6 mm mean per-joint position error on Human3.6M, corresponding to an error reduction of 11%, and the model also shows significant improvements on HumanEva-I. Moreover, experiments with back-projection show that it comfortably outperforms previous state-of-the-art results in semi-supervised settings where labeled data is scarce.
