Cited by 29Human Motion and AnimationHuman Pose and Action Recognition3D Shape Modeling and Analysis

Directed Acyclic Graph Neural Network for Human Motion Prediction

Li, Qin, Chalvatzaki, Georgia, Peters, Jan, Wang, Yong·2021·2021 IEEE International Conference on Robotics and Automation (ICRA)

Abstract

Human motion prediction is essential in human-robot interaction. Current research mostly considers the joint dependencies but ignores the bone dependencies and their relationship in the human skeleton, thus limiting the prediction accuracy. To address this issue, we represent the human skeleton as a directed acyclic graph with joints as vertexes and bones as directed edges. Then, we propose a novel directed acyclic graph neural network (DA-GNN) that follows the encoder-decoder structure. The encoder is stacked by multiple encoder blocks, each of which includes a directed acyclic graph computational operator (DA-GCO) to update joint and bone attributes based on the relationship between joint and bone dependencies in the observed human states, and a temporal update operator (TUO) to update the temporal dynamics of joints and bones in the same observation. After progressively implementing the above update process, the encoder outputs the final update result, fed into the decoder. The decoder includes a directed acyclic graph-based gated recurrent unit (DAG-GRU) and a multi-layered perceptron (MLP) to predict future human states sequentially. To the best of our knowledge, this is the first time to introduce the relationship between bone and joint dependencies in human motion prediction. Our experimental evaluations on two datasets, CMU Mocap and Human 3.6m, prove that DA-GNN outperforms current models. Finally, we showcase the efficacy of DA-GNN in a realistic HRI scenario.

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Crossref · 10.1109/icra48506.2021.9561540

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Authors
Li, Q., Chalvatzaki, G., Peters, J., & Wang, Y.
Affiliations
  • Central South University (CN)
  • Technische Universität Darmstadt (DE)
Venue
2021 IEEE International Conference on Robotics and Automation (ICRA)
Publisher
IEEE
Published
2021-05-30
Pages
3197-3204
ISSN
1050-4729 (ISSN-L)
OpenAlex
W3205725086
Cited by
29
References
51
Citations by year
2026: 5 · 2025: 6 · 2024: 8 · 2023: 5 · 2022: 5
FWCI
6.71
Type
conference paper
Language
en
Open access
closed
Locations
Proceedings - IEEE International Conference on Robotics and Automation/Proceedings (publishedVersion)
Topics
  • Physical Sciences › Engineering › Control and Systems Engineering › Human Motion and Animation
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Human Pose and Action Recognition
  • Physical Sciences › Engineering › Computational Mechanics › 3D Shape Modeling and Analysis
Keywords
human motion prediction, human-robot interaction, encoder-decoder architecture, temporal dynamics

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