DiGA3D: Coarse-to-Fine Diffusional Propagation of Geometry and Appearance for Versatile 3D Inpainting

• URL: http://arxiv.org/abs/2507.00429v1
• Date: Tue, 01 Jul 2025 04:57:08 GMT
• Title: DiGA3D: Coarse-to-Fine Diffusional Propagation of Geometry and Appearance for Versatile 3D Inpainting
• Authors: Jingyi Pan, Dan Xu, Qiong Luo,
• Abstract summary: Single reference inpainting methods lack robustness when dealing with views far from the reference view.<n>Appearance inconsistency arises when independently inpainting multi-view images with 2D diffusion priors.<n>DiGA3D uses diffusion models to propagate consistent appearance and geometry in a coarse-to-fine manner.
• Score: 10.515239541326737
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Developing a unified pipeline that enables users to remove, re-texture, or replace objects in a versatile manner is crucial for text-guided 3D inpainting. However, there are still challenges in performing multiple 3D inpainting tasks within a unified framework: 1) Single reference inpainting methods lack robustness when dealing with views that are far from the reference view. 2) Appearance inconsistency arises when independently inpainting multi-view images with 2D diffusion priors; 3) Geometry inconsistency limits performance when there are significant geometric changes in the inpainting regions. To tackle these challenges, we introduce DiGA3D, a novel and versatile 3D inpainting pipeline that leverages diffusion models to propagate consistent appearance and geometry in a coarse-to-fine manner. First, DiGA3D develops a robust strategy for selecting multiple reference views to reduce errors during propagation. Next, DiGA3D designs an Attention Feature Propagation (AFP) mechanism that propagates attention features from the selected reference views to other views via diffusion models to maintain appearance consistency. Furthermore, DiGA3D introduces a Texture-Geometry Score Distillation Sampling (TG-SDS) loss to further improve the geometric consistency of inpainted 3D scenes. Extensive experiments on multiple 3D inpainting tasks demonstrate the effectiveness of our method. The project page is available at https://rorisis.github.io/DiGA3D/.

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