RobustSplat: Decoupling Densification and Dynamics for Transient-Free 3DGS

Fuente: arXiv
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Autori principali: Fu, Chuanyu, Zhang, Yuqi, Yao, Kunbin, Chen, Guanying, Xiong, Yuan, Huang, Chuan, Cui, Shuguang, Cao, Xiaochun
Natura: Preprint
Pubblicazione: 2025
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author Fu, Chuanyu
Zhang, Yuqi
Yao, Kunbin
Chen, Guanying
Xiong, Yuan
Huang, Chuan
Cui, Shuguang
Cao, Xiaochun
author_facet Fu, Chuanyu
Zhang, Yuqi
Yao, Kunbin
Chen, Guanying
Xiong, Yuan
Huang, Chuan
Cui, Shuguang
Cao, Xiaochun
contents 3D Gaussian Splatting (3DGS) has gained significant attention for its real-time, photo-realistic rendering in novel-view synthesis and 3D modeling. However, existing methods struggle with accurately modeling scenes affected by transient objects, leading to artifacts in the rendered images. We identify that the Gaussian densification process, while enhancing scene detail capture, unintentionally contributes to these artifacts by growing additional Gaussians that model transient disturbances. To address this, we propose RobustSplat, a robust solution based on two critical designs. First, we introduce a delayed Gaussian growth strategy that prioritizes optimizing static scene structure before allowing Gaussian splitting/cloning, mitigating overfitting to transient objects in early optimization. Second, we design a scale-cascaded mask bootstrapping approach that first leverages lower-resolution feature similarity supervision for reliable initial transient mask estimation, taking advantage of its stronger semantic consistency and robustness to noise, and then progresses to high-resolution supervision to achieve more precise mask prediction. Extensive experiments on multiple challenging datasets show that our method outperforms existing methods, clearly demonstrating the robustness and effectiveness of our method. Our project page is https://fcyycf.github.io/RobustSplat/.
format Preprint
id arxiv_https___arxiv_org_abs_2506_02751
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle RobustSplat: Decoupling Densification and Dynamics for Transient-Free 3DGS
Fu, Chuanyu
Zhang, Yuqi
Yao, Kunbin
Chen, Guanying
Xiong, Yuan
Huang, Chuan
Cui, Shuguang
Cao, Xiaochun
Computer Vision and Pattern Recognition
3D Gaussian Splatting (3DGS) has gained significant attention for its real-time, photo-realistic rendering in novel-view synthesis and 3D modeling. However, existing methods struggle with accurately modeling scenes affected by transient objects, leading to artifacts in the rendered images. We identify that the Gaussian densification process, while enhancing scene detail capture, unintentionally contributes to these artifacts by growing additional Gaussians that model transient disturbances. To address this, we propose RobustSplat, a robust solution based on two critical designs. First, we introduce a delayed Gaussian growth strategy that prioritizes optimizing static scene structure before allowing Gaussian splitting/cloning, mitigating overfitting to transient objects in early optimization. Second, we design a scale-cascaded mask bootstrapping approach that first leverages lower-resolution feature similarity supervision for reliable initial transient mask estimation, taking advantage of its stronger semantic consistency and robustness to noise, and then progresses to high-resolution supervision to achieve more precise mask prediction. Extensive experiments on multiple challenging datasets show that our method outperforms existing methods, clearly demonstrating the robustness and effectiveness of our method. Our project page is https://fcyycf.github.io/RobustSplat/.
title RobustSplat: Decoupling Densification and Dynamics for Transient-Free 3DGS
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2506.02751