Structured Image-based Coding for Efficient Gaussian Splatting Compression

Fuente: arXiv
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Main Authors: Martin, Pedro, Rodrigues, Antonio, Ascenso, Joao, Queluz, Maria Paula
Format: Preprint
Published: 2026
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author Martin, Pedro
Rodrigues, Antonio
Ascenso, Joao
Queluz, Maria Paula
author_facet Martin, Pedro
Rodrigues, Antonio
Ascenso, Joao
Queluz, Maria Paula
contents Gaussian Splatting (GS) has recently emerged as a state-of-the-art representation for radiance fields, combining real-time rendering with high visual fidelity. However, GS models require storing millions of parameters, leading to large file sizes that impair their use in practical multimedia systems. To address this limitation, this paper introduces GS Image-based Compression (GSICO), a novel GS codec that efficiently compresses pre-trained GS models while preserving perceptual fidelity. The core contribution lies in a mapping procedure that arranges GS parameters into structured images, guided by a novel algorithm that enhances spatial coherence. These GS parameter images are then encoded using a conventional image codec. Experimental evaluations on Tanks and Temples, Deep Blending, and Mip-NeRF360 datasets show that GSICO achieves average compression factors of 20.2x with minimal loss in visual quality, as measured by PSNR, SSIM, and LPIPS. Compared with state-of-the-art GS compression methods, the proposed codec consistently yields superior rate-distortion (RD) trade-offs.
format Preprint
id arxiv_https___arxiv_org_abs_2601_14510
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Structured Image-based Coding for Efficient Gaussian Splatting Compression
Martin, Pedro
Rodrigues, Antonio
Ascenso, Joao
Queluz, Maria Paula
Multimedia
Gaussian Splatting (GS) has recently emerged as a state-of-the-art representation for radiance fields, combining real-time rendering with high visual fidelity. However, GS models require storing millions of parameters, leading to large file sizes that impair their use in practical multimedia systems. To address this limitation, this paper introduces GS Image-based Compression (GSICO), a novel GS codec that efficiently compresses pre-trained GS models while preserving perceptual fidelity. The core contribution lies in a mapping procedure that arranges GS parameters into structured images, guided by a novel algorithm that enhances spatial coherence. These GS parameter images are then encoded using a conventional image codec. Experimental evaluations on Tanks and Temples, Deep Blending, and Mip-NeRF360 datasets show that GSICO achieves average compression factors of 20.2x with minimal loss in visual quality, as measured by PSNR, SSIM, and LPIPS. Compared with state-of-the-art GS compression methods, the proposed codec consistently yields superior rate-distortion (RD) trade-offs.
title Structured Image-based Coding for Efficient Gaussian Splatting Compression
topic Multimedia
url https://arxiv.org/abs/2601.14510