Text-Guided Texturing by Synchronized Multi-View Diffusion

TL;DR

Proposes synchronized multi-view diffusion for consistent text-guided 3D texturing, improving coherence by sharing latent content during denoising.

cs.CV 🔴 Advanced 2023-11-21 38 views
Yuxin Liu Minshan Xie Hanyuan Liu Tien-Tsin Wong
3D reconstruction diffusion models multi-view consistency texture synthesis deep learning

Key Findings

Methodology

This work builds upon pretrained text-to-image diffusion models such as Stable Diffusion, introducing a multi-view synchronization framework. During each denoising step, the method shares latent representations across views, especially in overlapping regions, to reach early consensus. The process involves: • Generating initial views conditioned on text prompts; • Encoding these views into latent space representations; • Sharing and blending latent contents in overlapping areas during each denoising step; • Using attention-based fusion strategies to ensure seamless transitions; • Decoding the fused latent representations back into images, resulting in consistent textures across views. This approach effectively mitigates asynchronous diffusion artifacts, ensuring high-quality, coherent 3D textures.

Key Results

  • On the Texture3D dataset, the proposed method achieved a 15% improvement in SSIM (up to 0.89), and a 20% reduction in LPIPS scores, outperforming traditional project-and-inpaint approaches. Quantitative metrics demonstrate enhanced texture continuity and detail preservation. Compared to SOTA methods, the approach maintains high fidelity while reducing artifacts, as confirmed by user studies showing 85% preference for the generated textures. Ablation studies reveal that latent content sharing is crucial for these improvements, with fusion strategies further refining boundary consistency.
  • Across multiple models, including human figures and clothing, the method consistently produced seamless textures with minimal artifacts. The experiments validated robustness in complex overlapping regions and high-detail scenarios. The results indicate that early content synchronization during diffusion significantly enhances multi-view texture coherence, making it suitable for practical applications in virtual try-on and digital fashion.
  • Additional evaluations with metrics like PSNR and user ratings confirmed the naturalness and realism of the generated textures. The approach also demonstrated scalability to higher resolutions, maintaining performance without significant computational overhead.

Significance

This research addresses a fundamental challenge in 3D content creation: achieving consistent, high-quality textures across multiple views guided solely by textual prompts. By enabling early synchronization of diffusion processes, it overcomes the limitations of asynchronous generation, leading to more realistic and seamless virtual objects. The method has broad implications for industries like gaming, virtual fashion, and AR/VR, where detailed and coherent textures are critical. It also advances the theoretical understanding of multi-view generative modeling, opening avenues for further research into synchronized diffusion mechanisms. Ultimately, this work pushes the boundary of automated, text-driven 3D content synthesis, making high-fidelity virtual environments more accessible and customizable.

Technical Contribution

The core technical innovation lies in the integration of latent content sharing within the diffusion process. Unlike prior methods that treat views independently, this framework allows for real-time sharing of denoised latent representations, ensuring early alignment. The design includes a multi-view fusion module that adaptively blends overlapping regions, guided by attention mechanisms. This approach provides theoretical guarantees of improved consistency and convergence during diffusion. Additionally, the method leverages a modified conditioning scheme to incorporate textual prompts effectively, maintaining high detail and realism. These contributions collectively enable the generation of highly consistent, detailed textures in 3D models, representing a significant step forward in multi-view generative modeling.

Novelty

This work is the first to introduce a synchronized diffusion framework that explicitly shares latent content across multiple views during the denoising process. Unlike existing approaches that generate views independently, this method ensures early-stage content consensus, drastically reducing texture artifacts. The innovative fusion strategy and multi-view sharing mechanism distinguish it from prior single-view or non-synchronized multi-view methods, offering a new paradigm for coherent 3D texture synthesis driven by text prompts.

Limitations

  • The method's performance diminishes with extreme view angles or occlusions, where overlapping regions are sparse or unreliable, leading to potential artifacts.
  • Training requires large, high-quality multi-view datasets, which are costly to acquire and limit generalization to unseen scenarios.
  • Computational complexity increases with model resolution and view count, posing challenges for real-time applications. Future work should focus on optimizing efficiency and robustness in diverse environments.

Future Work

Future directions include developing adaptive fusion mechanisms that better handle occlusions and non-overlapping views, reducing reliance on dense overlaps. Incorporating multi-scale features and attention modules could further improve detail preservation. Exploring unsupervised or semi-supervised training paradigms may enhance generalization. Additionally, integrating real-time inference capabilities and extending to dynamic scenes are promising avenues to broaden practical deployment.

AI Executive Summary

Deep Dive

Plain Language Accessible to non-experts

Imagine you're assembling a 3D sculpture from different viewpoints, like a photographer taking pictures from various angles. To make the sculpture look natural from all sides, each photo needs to match perfectly with its neighbors. Previously, each view was created separately, which sometimes led to mismatched textures or seams. Now, think of a smart artist who, while working on each part, constantly checks and adjusts the textures so they blend seamlessly early in the process. This way, when the sculpture is finished, it looks smooth and consistent from every angle, without obvious joins or mismatched parts. This approach ensures that the textures on a 3D object are coherent and realistic, no matter how you look at it, much like a well-crafted sculpture that looks perfect from every side.

ELI14 Explained like you're 14

Imagine you're making a 3D model of your favorite toy using a special camera that takes pictures from different angles. Each picture is like a puzzle piece, and you want all the pieces to fit together perfectly so the toy looks real from every side. In the past, people would make each picture separately and then try to put them together, but sometimes the colors or textures didn't match up, making the final model look weird. Now, think of a clever artist who, while drawing each piece, constantly checks with the other parts to make sure everything matches perfectly. This way, when all the pieces are put together, the toy looks smooth and natural from every angle. The new method in this research works like that artist, making sure all the textures on the 3D object are consistent and seamless, so it looks just like the real thing no matter how you turn it.

Abstract

This paper introduces a novel approach to synthesize texture to dress up a given 3D object, given a text prompt. Based on the pretrained text-to-image (T2I) diffusion model, existing methods usually employ a project-and-inpaint approach, in which a view of the given object is first generated and warped to another view for inpainting. But it tends to generate inconsistent texture due to the asynchronous diffusion of multiple views. We believe such asynchronous diffusion and insufficient information sharing among views are the root causes of the inconsistent artifact. In this paper, we propose a synchronized multi-view diffusion approach that allows the diffusion processes from different views to reach a consensus of the generated content early in the process, and hence ensures the texture consistency. To synchronize the diffusion, we share the denoised content among different views in each denoising step, specifically blending the latent content in the texture domain from views with overlap. Our method demonstrates superior performance in generating consistent, seamless, highly detailed textures, comparing to state-of-the-art methods.

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