arXiv:2605.13073cs.CV2026-05

解决野外3D高斯点云渲染中的视角冲突问题,提升重建稳定性与质量。

HarmoGS: Robust 3D Gaussian Splatting in the Wild via Conflict-Aware Gradient Harmonization

论文配图:HarmoGS: Robust 3D Gaussian Splatting in the Wild via Conflict-Aware Gradient Harmonization
图 1 · 摘自论文原文
  • 通过语义一致性引导的自适应掩码,精准过滤不可靠监督信号。
  • 双视角梯度协同调和,减少跨视角梯度干扰,稳定优化过程。
  • 适合复杂动态场景下高保真3D重建,尤其在光照变化剧烈时表现优异。

野外环境下的3D高斯点云渲染仍面临瞬时干扰物和光照引起的跨视角外观不一致问题。现有方法主要依赖图像级掩码抑制不可靠监督,但掩码无法完全消除残留遮挡或光照引发的一致性问题,二者均会引入跨视角梯度冲突。这些未解决的冲突可能破坏高斯优化的稳定性,导致明显重建伪影。本文提出一种冲突感知的3DGS框架,从图像空间监督与梯度层面双重优化。语义一致性引导掩码学习像素级一致性分数,自适应优化先验掩码,抑制不可靠监督信号;双视角冲突感知梯度调和策略通过相互旋转梯度至正交配置,降低跨视角负向干扰。此外,引入冲突感知的稠密化与剪枝机制,稳定高斯增长并移除持续冲突的粒子。在标准野外基准上的大量实验表明,该方法在复杂瞬时干扰与跨视角不一致条件下实现了最先进的渲染质量。

原文摘要 · Abstract (English)

In-the-wild 3D Gaussian Splatting remains challenging due to transient distractors and illumination-induced cross-view appearance inconsistencies. Existing methods mainly rely on image-level masking to suppress unreliable supervision, but masking alone cannot fully eliminate residual occlusions or resolve illumination-induced inconsistencies, both of which can introduce conflicting cross-view gradients. These unresolved conflicts may destabilize Gaussian optimization and lead to visible reconstruction artifacts. We propose a conflict-aware 3DGS framework that addresses this problem from both image-space supervision and gradient-level optimization. Semantic Consistency-Guided Masking learns pixel-wise consistency scores to adaptively refine prior masks and suppress unreliable supervision before gradient formation. A dual-view Conflict-Aware Gradient Harmonization strategy further reconciles view-specific gradients by mutually rotating them into an orthogonal configuration, reducing negative directional interference across views. We also introduce conflict-aware densification and pruning to stabilize Gaussian growth and remove persistently conflicting primitives. Extensive experiments on standard in-the-wild benchmarks demonstrate that our method achieves state-of-the-art rendering quality under complex transient distractors and cross-view inconsistencies.

3D重建高斯点云渲染优化视觉一致性

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