titleAsySplat: Efficient Asymmetric 3D Gaussian Splatting for Long-Sequence Scene Modeling
authorsYingji Zhong, Dave Zhenyu Chen, Fuzhao Ou, Youyu Chen, Zhihao Li, Lanqing Hong, Dan Xu
date2026-07-13
venuearXiv (preprint, not peer reviewed)
idarXiv:2607.10995
affiliationHKUST
upvotes5 (Hugging Face Daily Papers, 2026-11-01)
linksabs pdf hf code
abstractRecent generalizable 3D Gaussian Splatting models have advanced long-sequence novel view synthesis (NVS), but at the cost of substantial redundant computation. We identify that the redundancy can be mitigated based on two observations: (i) high-precision geometry is not strictly required for high-quality NVS; (ii) appearance learning is generally easier than geometry recovery. Motivated by these insights, we propose an asymmetric architecture that decouples geometry and appearance modeling. The geometry branch processes coarse-grained tokens with most of the parameters for multi-view reconstruction, while the appearance branch operates on fine-grained tokens to capture details using significantly fewer parameters. The two branches interact through bilateral connections, enabling mutual guidance for their respective tasks. This task-aware asymmetry reduces the computational redundancy and allocates the computation more judiciously, thereby increasing parameter efficiency and enabling smaller models to achieve strong performance. On 32-view 960P inputs, our model matches optimization-based methods while delivering nearly 800x speedup, and surpasses the zero-shot performance of state-of-the-art generalizable models with markedly fewer parameters and reduced training/inference overhead, achieving an overall efficiency improvement.

cite

@misc{zhong2026asysplat,
  title={AsySplat: Efficient Asymmetric 3D Gaussian Splatting for Long-Sequence Scene Modeling},
  author={Yingji Zhong and Dave Zhenyu Chen and Fuzhao Ou and Youyu Chen and Zhihao Li and Lanqing Hong and Dan Xu},
  year={2026},
  eprint={2607.10995},
  archivePrefix={arXiv},
  url={https://arxiv.org/abs/2607.10995}
}