具有可控可压缩性与接触感知的实时动态场景渲染
Real-Time Dynamic Scene Rendering with Controlled Compressibility and Contact Awareness
把预测速度投影到显式流形先验（Helmholtz 分解、各向异性可压缩方向先验、仿射族）上，可作为动态 3DGS 中约束高斯原语运动、抑制遮挡/接触边界伪影的通用正则化手段。
原文依据 we introduce a unified, source-aware framework for dynamic rendering that enforces the consistency of Gaussian primitives under explicit manifold constraints
摘要译文
由模型翻译 · 术语统一 · 请对照原文核对关键结论现有的动态场景渲染方法往往采用刚体假设或方向受限假设，而真实世界的运动与接触经常违反这些假设，从而在遮挡边界附近产生伪影。为解决这一问题，我们提出一个统一的、源感知的动态渲染框架，在显式流形约束下强制高斯原语的一致性。我们通过高效的并行内层求解，将预测速度投影到具有物理依据的先验上：(i) 一种 Helmholtz 参数化，将无散度运动分量与势流运动分量分离；(ii) 一种各向异性的可压缩方向先验；(iii) 一个仿射族，将旋转与各向同性缩放解耦。在大量基准上的实验表明，该方法在重建保真度和时序一致性上相较最优方法取得了一致提升。我们的方法确保了物理上真实的渲染，尤其是在接触附近，并显著减少了运动边界伪影。
英文原文摘要 992 字符
Existing dynamic scene rendering methods often adopt rigid-body or direction-limited assumptions, yet real-world motion and contact routinely violate these, producing artifacts near occlusion boundaries. To address this, we introduce a unified, source-aware framework for dynamic rendering that enforces the consistency of Gaussian primitives under explicit manifold constraints. We project predicted velocities onto physically grounded priors via efficient, parallel inner solves: (i) a Helmholtz parameterization that separates divergence-free and potential-flow motion components; (ii) an anisotropic, compressible directional prior; and (iii) an affine family that disentangles rotation from isotropic scaling. Experiments on extensive benchmarks show consistent improvements over state-of-the-art methods in reconstruction fidelity and temporal coherence. Our approach ensures physically realistic rendering, especially near contacts, and substantially reduces motion-boundary artifacts.