WaSt-3D: Wasserstein-2 Distance for Scene-to-Scene Stylization on 3D Gaussians

• URL: http://arxiv.org/abs/2409.17917v1
• Date: Thu, 26 Sep 2024 15:02:50 GMT
• Title: WaSt-3D: Wasserstein-2 Distance for Scene-to-Scene Stylization on 3D Gaussians
• Authors: Dmytro Kotovenko, Olga Grebenkova, Nikolaos Sarafianos, Avinash Paliwal, Pingchuan Ma, Omid Poursaeed, Sreyas Mohan, Yuchen Fan, Yilei Li, Rakesh Ranjan, Björn Ommer,
• Abstract summary: We develop a new style transfer method for 3D scenes called WaSt-3D. It faithfully transfers details from style scenes to the content scene without requiring any training. WaSt-3D consistently delivers results across diverse content and style scenes without necessitating any training.
• Score: 37.139479729087896
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: While style transfer techniques have been well-developed for 2D image stylization, the extension of these methods to 3D scenes remains relatively unexplored. Existing approaches demonstrate proficiency in transferring colors and textures but often struggle with replicating the geometry of the scenes. In our work, we leverage an explicit Gaussian Splatting (GS) representation and directly match the distributions of Gaussians between style and content scenes using the Earth Mover's Distance (EMD). By employing the entropy-regularized Wasserstein-2 distance, we ensure that the transformation maintains spatial smoothness. Additionally, we decompose the scene stylization problem into smaller chunks to enhance efficiency. This paradigm shift reframes stylization from a pure generative process driven by latent space losses to an explicit matching of distributions between two Gaussian representations. Our method achieves high-resolution 3D stylization by faithfully transferring details from 3D style scenes onto the content scene. Furthermore, WaSt-3D consistently delivers results across diverse content and style scenes without necessitating any training, as it relies solely on optimization-based techniques. See our project page for additional results and source code: $\href{https://compvis.github.io/wast3d/}{https://compvis.github.io/wast3d/}$.

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