VPGS-SLAM: Voxel-based Progressive 3D Gaussian SLAM in Large-Scale Scenes

Fuente: arXiv
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Auteurs principaux: Deng, Tianchen, Wu, Wenhua, He, Junjie, Pan, Yue, Yuan, Shenghai, Wang, Danwei, Wang, Hesheng
Format: Preprint
Publié: 2025
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author Deng, Tianchen
Wu, Wenhua
He, Junjie
Pan, Yue
Yuan, Shenghai
Wang, Danwei
Wang, Hesheng
author_facet Deng, Tianchen
Wu, Wenhua
He, Junjie
Pan, Yue
Yuan, Shenghai
Wang, Danwei
Wang, Hesheng
contents 3D Gaussian Splatting has recently shown promising results in dense visual SLAM. However, existing 3DGS-based SLAM methods are all constrained to small-room scenarios and struggle with memory explosion in large-scale scenes and long sequences. To this end, we propose VPGS-SLAM, the first 3DGS-based large-scale RGBD SLAM framework for both indoor and outdoor scenarios. We design a novel voxel-based progressive 3D Gaussian mapping method with multiple submaps for compact and accurate scene representation in large-scale and long-sequence scenes. This allows us to scale up to arbitrary scenes and improves robustness (even under pose drifts). In addition, we propose a 2D-3D fusion camera tracking method to achieve robust and accurate camera tracking in both indoor and outdoor large-scale scenes. Furthermore, we design a 2D-3D Gaussian loop closure method to eliminate pose drift. We further propose a submap fusion method with online distillation to achieve global consistency in large-scale scenes when detecting a loop. Experiments on various indoor and outdoor datasets demonstrate the superiority and generalizability of the proposed framework. The code will be open source on https://github.com/dtc111111/vpgs-slam.
format Preprint
id arxiv_https___arxiv_org_abs_2505_18992
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle VPGS-SLAM: Voxel-based Progressive 3D Gaussian SLAM in Large-Scale Scenes
Deng, Tianchen
Wu, Wenhua
He, Junjie
Pan, Yue
Yuan, Shenghai
Wang, Danwei
Wang, Hesheng
Computer Vision and Pattern Recognition
3D Gaussian Splatting has recently shown promising results in dense visual SLAM. However, existing 3DGS-based SLAM methods are all constrained to small-room scenarios and struggle with memory explosion in large-scale scenes and long sequences. To this end, we propose VPGS-SLAM, the first 3DGS-based large-scale RGBD SLAM framework for both indoor and outdoor scenarios. We design a novel voxel-based progressive 3D Gaussian mapping method with multiple submaps for compact and accurate scene representation in large-scale and long-sequence scenes. This allows us to scale up to arbitrary scenes and improves robustness (even under pose drifts). In addition, we propose a 2D-3D fusion camera tracking method to achieve robust and accurate camera tracking in both indoor and outdoor large-scale scenes. Furthermore, we design a 2D-3D Gaussian loop closure method to eliminate pose drift. We further propose a submap fusion method with online distillation to achieve global consistency in large-scale scenes when detecting a loop. Experiments on various indoor and outdoor datasets demonstrate the superiority and generalizability of the proposed framework. The code will be open source on https://github.com/dtc111111/vpgs-slam.
title VPGS-SLAM: Voxel-based Progressive 3D Gaussian SLAM in Large-Scale Scenes
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2505.18992