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Article overview
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AvatarGen: a 3D Generative Model for Animatable Human Avatars | | Jianfeng Zhang
; Zihang Jiang
; Dingdong Yang
; Hongyi Xu
; Yichun Shi
; Guoxian Song
; Zhongcong Xu
; Xinchao Wang
; Jiashi Feng
; | | Date: |
1 Aug 2022 | | Abstract: | Unsupervised generation of clothed virtual humans with various appearance and
animatable poses is important for creating 3D human avatars and other AR/VR
applications. Existing methods are either limited to rigid object modeling, or
not generative and thus unable to synthesize high-quality virtual humans and
animate them. In this work, we propose AvatarGen, the first method that enables
not only non-rigid human generation with diverse appearance but also full
control over poses and viewpoints, while only requiring 2D images for training.
Specifically, it extends the recent 3D GANs to clothed human generation by
utilizing a coarse human body model as a proxy to warp the observation space
into a standard avatar under a canonical space. To model non-rigid dynamics, it
introduces a deformation network to learn pose-dependent deformations in the
canonical space. To improve geometry quality of the generated human avatars, it
leverages signed distance field as geometric representation, which allows more
direct regularization from the body model on the geometry learning. Benefiting
from these designs, our method can generate animatable human avatars with
high-quality appearance and geometry modeling, significantly outperforming
previous 3D GANs. Furthermore, it is competent for many applications, e.g.,
single-view reconstruction, reanimation, and text-guided synthesis. Code and
pre-trained model will be available. | | Source: | arXiv, 2208.00561 | | Services: | Forum | Review | PDF | Favorites | |
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