In this paper, we address common error sources for 3D Gaussian Splatting
(3DGS) including blur, imperfect camera poses, and color inconsistencies, with
the goal of improving its robustness for practical applications like
reconstructions from handheld phone captures. Our main contribution involves
modeling motion blur as a Gaussian distribution over camera poses, allowing us
to address both camera pose refinement and motion blur correction in a unified
way. Additionally, we propose mechanisms for defocus blur compensation and for
addressing color in-consistencies caused by ambient light, shadows, or due to
camera-related factors like varying white balancing settings. Our proposed
solutions integrate in a seamless way with the 3DGS formulation while
maintaining its benefits in terms of training efficiency and rendering speed.
We experimentally validate our contributions on relevant benchmark datasets
including Scannet++ and Deblur-NeRF, obtaining state-of-the-art results and
thus consistent improvements over relevant baselines.

本文主要研究了 3D 高斯喷洒（3DGS）中的常见误差源，包括模糊、不完美的相机姿态以及颜色不一致性，旨在改善其在像手持手机拍摄的实际应用中的鲁棒性。通过将运动模糊建模为相机姿态上的高斯分布，我们可以统一处理相机姿态的精炼和运动模糊矫正，并提出了解决散焦模糊补偿和解决由环境光、阴影或相机相关因素引起的颜色不一致性的机制。我们的解决方案与 3DGS 的配方无缝集成，同时保持其在训练效率和渲染速度方面的优势。通过在 Scannet++ 和 Deblur-NeRF 等相关基准数据集上进行实验证实，我们的贡献取得了最先进的结果，相对于相关基准线实现了一致的性能改进。