Locality-aware Gaussian Compression for Fast and High-quality Rendering

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Hauptverfasser: Shin, Seungjoo, Park, Jaesik, Cho, Sunghyun
Format: Preprint
Veröffentlicht: 2025
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author Shin, Seungjoo
Park, Jaesik
Cho, Sunghyun
author_facet Shin, Seungjoo
Park, Jaesik
Cho, Sunghyun
contents We present LocoGS, a locality-aware 3D Gaussian Splatting (3DGS) framework that exploits the spatial coherence of 3D Gaussians for compact modeling of volumetric scenes. To this end, we first analyze the local coherence of 3D Gaussian attributes, and propose a novel locality-aware 3D Gaussian representation that effectively encodes locally-coherent Gaussian attributes using a neural field representation with a minimal storage requirement. On top of the novel representation, LocoGS is carefully designed with additional components such as dense initialization, an adaptive spherical harmonics bandwidth scheme and different encoding schemes for different Gaussian attributes to maximize compression performance. Experimental results demonstrate that our approach outperforms the rendering quality of existing compact Gaussian representations for representative real-world 3D datasets while achieving from 54.6$\times$ to 96.6$\times$ compressed storage size and from 2.1$\times$ to 2.4$\times$ rendering speed than 3DGS. Even our approach also demonstrates an averaged 2.4$\times$ higher rendering speed than the state-of-the-art compression method with comparable compression performance.
format Preprint
id arxiv_https___arxiv_org_abs_2501_05757
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Locality-aware Gaussian Compression for Fast and High-quality Rendering
Shin, Seungjoo
Park, Jaesik
Cho, Sunghyun
Computer Vision and Pattern Recognition
We present LocoGS, a locality-aware 3D Gaussian Splatting (3DGS) framework that exploits the spatial coherence of 3D Gaussians for compact modeling of volumetric scenes. To this end, we first analyze the local coherence of 3D Gaussian attributes, and propose a novel locality-aware 3D Gaussian representation that effectively encodes locally-coherent Gaussian attributes using a neural field representation with a minimal storage requirement. On top of the novel representation, LocoGS is carefully designed with additional components such as dense initialization, an adaptive spherical harmonics bandwidth scheme and different encoding schemes for different Gaussian attributes to maximize compression performance. Experimental results demonstrate that our approach outperforms the rendering quality of existing compact Gaussian representations for representative real-world 3D datasets while achieving from 54.6$\times$ to 96.6$\times$ compressed storage size and from 2.1$\times$ to 2.4$\times$ rendering speed than 3DGS. Even our approach also demonstrates an averaged 2.4$\times$ higher rendering speed than the state-of-the-art compression method with comparable compression performance.
title Locality-aware Gaussian Compression for Fast and High-quality Rendering
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2501.05757