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AMHGCN: Adaptive multi-level hypergraph convolution network for human motion prediction
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DOI：10.1016/j.neunet.2024.106153.png)
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Human motion prediction is the key technology for many real -life applications, e.g., self -driving and human- robot interaction. The recent approaches adopt the unrestricted full -connection graph representation to capture the relationships inside the human skeleton. However, there are two issues to be solved: (i) these unrestricted full -connection graph representation methods neglect the inherent dependencies across the joints of the human body; (ii) these methods represent human motions using the features extracted from a single level and thus can neither fully exploit the various connection relationships among the human body nor guarantee the human motion prediction results to be reasonable. To tackle the above issues, we propose an adaptive multi -level hypergraph convolution network (AMHGCN), which uses the adaptive multi -level hypergraph representation to capture various dependencies among the human body. Our method has four different levels of hypergraph representations, including (i) the joint -level hypergraph representation to capture inherent kinetic dependencies in the human body, (ii) the part -level hypergraph representation to exploit the kinetic characteristics at a higher level (in comparison to the joint -level) by viewing some part of the human body as an entirety, (iii) the component -level hypergraph representation to model the semantic information, and (iv) the globallevel hypergraph representation to extract long-distance dependencies in the human body. In addition, to take full advantage of the knowledge carried in the training data, we propose a reverse loss (i.e., adopting the future human poses to predict the historical poses reversely) to realize data augmentation. Extensive experiments show that our proposed AMHGCN can achieve state-of-the-art performance on three benchmarks, i.e., Human3.6M, CMU-Mocap, and 3DPW.
Keyword:
Human motion prediction
Hypergraph representation
Graph convolutional network
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6.3
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7.8K
被引数:
3.0W
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