MeshAvatar: Learning High-quality Triangular Human Avatars from Multi-view Videos

• URL: http://arxiv.org/abs/2407.08414v1
• Date: Thu, 11 Jul 2024 11:37:51 GMT
• Title: MeshAvatar: Learning High-quality Triangular Human Avatars from Multi-view Videos
• Authors: Yushuo Chen, Zerong Zheng, Zhe Li, Chao Xu, Yebin Liu,
• Abstract summary: We present a novel pipeline for learning high-quality triangular human avatars from multi-view videos. Our method represents the avatar with an explicit triangular mesh extracted from an implicit SDF field. We incorporate physics-based rendering to accurately decompose geometry and texture.
• Score: 41.45299653187577
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We present a novel pipeline for learning high-quality triangular human avatars from multi-view videos. Recent methods for avatar learning are typically based on neural radiance fields (NeRF), which is not compatible with traditional graphics pipeline and poses great challenges for operations like editing or synthesizing under different environments. To overcome these limitations, our method represents the avatar with an explicit triangular mesh extracted from an implicit SDF field, complemented by an implicit material field conditioned on given poses. Leveraging this triangular avatar representation, we incorporate physics-based rendering to accurately decompose geometry and texture. To enhance both the geometric and appearance details, we further employ a 2D UNet as the network backbone and introduce pseudo normal ground-truth as additional supervision. Experiments show that our method can learn triangular avatars with high-quality geometry reconstruction and plausible material decomposition, inherently supporting editing, manipulation or relighting operations.

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