GigaGS: 3D Gaussian Based Planar Representation for Large-Scene Surface Reconstruction

3D Gaussian Splatting (3DGS) has shown promising performance in novel view synthesis. Previous methods adapt it to obtaining surfaces of either individual 3D objects or within limited scenes. In this paper, we make the first attempt to tackle the challenging task of large-scale scene surface reconstruction. This task is particularly difficult due to the high GPU memory consumption, different levels of details for geometric representation, and noticeable inconsistencies in appearance. To this end, we propose GigaGS, the first work for high-quality surface reconstruction for large-scale scenes using 3DGS. GigaGS first applies a partitioning strategy based on the mutual visibility of spatial regions, which effectively grouping cameras for parallel processing. To enhance the quality of the surface, we also propose novel multi-view photometric and geometric consistency constraints based on Level-of-Detail representation. In doing so, our method can reconstruct detailed surface structures. Comprehensive experiments are conducted on various datasets. The consistent improvement demonstrates the superiority of GigaGS.

Authors

• Junyi Chen Shanghai Jiao Tong University Shanghai Artificial Intelligence Laboratory
• Weicai Ye Shanghai Artificial Intelligence Laboratory State Key Lab of CAD&CG, Zhejiang University
• Yifan Wang Tsinghua University, Tsinghua University
• Danpeng Chen State Key Lab of CAD&CG, Zhejiang University
• Di Huang Beihang University
• Wanli Ouyang Shanghai Artificial Intelligence Laboratory
• Guofeng Zhang State Key Lab of CAD&CG, Zhejiang University
• Yu Qiao Shanghai Artificial Intelligence Laboratory
• Tong He Shanghai Artificial Intelligence Laboratory

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