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arXiv · 2311.11614

Semantic-Preserved Point-based Human Avatar

Lixiang Lin·Jianke Zhu
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Abstract

To enable realistic experience in AR/VR and digital entertainment, we present the first point-based human avatar model that embodies the entirety expressive range of digital humans. We employ two MLPs to model pose-dependent deformation and linear skinning (LBS) weights. The representation of appearance relies on a decoder and the features that attached to each point. In contrast to alternative implicit approaches, the oriented points representation not only provides a more intuitive way to model human avatar animation but also significantly reduces both training and inference time. Moreover, we propose a novel method to transfer semantic information from the SMPL-X model to the points, which enables to better understand human body movements. By leveraging the semantic information of points, we can facilitate virtual try-on and human avatar composition through exchanging the points of same category across different subjects. Experimental results demonstrate the efficacy of our presented method.

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Lixiang Lin, Jianke Zhu. 2023-11-20. Semantic-Preserved Point-based Human Avatar. https://arxiv.org/abs/2311.11614

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