3D-Adapter: Geometry-Consistent Multi-View Diffusion for High-Quality 3D Generation

• URL: http://arxiv.org/abs/2410.18974v1
• Date: Thu, 24 Oct 2024 17:59:30 GMT
• Title: 3D-Adapter: Geometry-Consistent Multi-View Diffusion for High-Quality 3D Generation
• Authors: Hansheng Chen, Bokui Shen, Yulin Liu, Ruoxi Shi, Linqi Zhou, Connor Z. Lin, Jiayuan Gu, Hao Su, Gordon Wetzstein, Leonidas Guibas,
• Abstract summary: 3D-Adapter is a plug-in module designed to infuse 3D geometry awareness into pretrained image diffusion models. We show that 3D-Adapter greatly enhances the geometry quality of text-to-multi-view models such as Instant3D and Zero123++. We also showcase the broad application potential of 3D-Adapter by presenting high quality results in text-to-3D, image-to-3D, text-to-texture, and text-to-avatar tasks.
• Score: 45.218605449572586
• License:
• Abstract: Multi-view image diffusion models have significantly advanced open-domain 3D object generation. However, most existing models rely on 2D network architectures that lack inherent 3D biases, resulting in compromised geometric consistency. To address this challenge, we introduce 3D-Adapter, a plug-in module designed to infuse 3D geometry awareness into pretrained image diffusion models. Central to our approach is the idea of 3D feedback augmentation: for each denoising step in the sampling loop, 3D-Adapter decodes intermediate multi-view features into a coherent 3D representation, then re-encodes the rendered RGBD views to augment the pretrained base model through feature addition. We study two variants of 3D-Adapter: a fast feed-forward version based on Gaussian splatting and a versatile training-free version utilizing neural fields and meshes. Our extensive experiments demonstrate that 3D-Adapter not only greatly enhances the geometry quality of text-to-multi-view models such as Instant3D and Zero123++, but also enables high-quality 3D generation using the plain text-to-image Stable Diffusion. Furthermore, we showcase the broad application potential of 3D-Adapter by presenting high quality results in text-to-3D, image-to-3D, text-to-texture, and text-to-avatar tasks.

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