用三角形粗略建模几何，用高斯点渲染细节，兼顾精度与效率。
HaloGS: Loose Coupling of Compact Geometry and Gaussian Splats for 3D Scenes
- 用三角面片表示粗略几何，高斯点负责精细外观，松耦合设计
- 在多个数据集上实现紧凑的几何结构与逼真渲染效果
- 适合需要高效重建复杂场景的3D应用，如AR/VR
高保真3D重建与渲染依赖于精确几何与逼真细节的捕捉。现有方法要么将二者融合为复杂模型，要么采用统一原型的混合方案，导致效率与保真度难以兼顾。本文提出HaloGS，一种双表示架构：以粗略三角面片表达几何结构，以高斯点表示外观特征，灵感来自轻量级经典几何表示及其在实际应用中的高效性。该设计生成一个紧凑而富有表现力的模型，可在室内外环境中实现逼真渲染，并自适应不同复杂度的场景。在多个基准数据集上的实验表明，该方法在保持几何紧凑性的同时，实现了高保真渲染，尤其在需要鲁棒几何结构的挑战性场景中表现显著。
原文摘要 · Abstract (English)
High fidelity 3D reconstruction and rendering hinge on capturing precise geometry while preserving photo realistic detail. Most existing methods either fuse these goals into a single cumbersome model or adopt hybrid schemes whose uniform primitives lead to a trade off between efficiency and fidelity. In this paper, we introduce HaloGS, a dual representation that loosely couples coarse triangles for geometry with Gaussian primitives for appearance, motivated by the lightweight classic geometry representations and their proven efficiency in real world applications. Our design yields a compact yet expressive model capable of photo realistic rendering across both indoor and outdoor environments, seamlessly adapting to varying levels of scene complexity. Experiments on multiple benchmark datasets demonstrate that our method yields both compact, accurate geometry and high fidelity renderings, especially in challenging scenarios where robust geometric structure make a clear difference.
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