Appearance Decomposition Gaussian Splatting for Multi-Traversal Reconstruction

Fuente: arXiv
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Main Authors: Xiao, Yangyi, Zhu, Siting, Yang, Baoquan, Deng, Tianchen, Chen, Yongbo, Wang, Hesheng
Format: Preprint
Published: 2026
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author Xiao, Yangyi
Zhu, Siting
Yang, Baoquan
Deng, Tianchen
Chen, Yongbo
Wang, Hesheng
author_facet Xiao, Yangyi
Zhu, Siting
Yang, Baoquan
Deng, Tianchen
Chen, Yongbo
Wang, Hesheng
contents Multi-traversal scene reconstruction is important for high-fidelity autonomous driving simulation and digital twin construction. This task involves integrating multiple sequences captured from the same geographical area at different times. In this context, a primary challenge is the significant appearance inconsistency across traversals caused by varying illumination and environmental conditions, despite the shared underlying geometry. This paper presents ADM-GS (Appearance Decomposition Gaussian Splatting for Multi-Traversal Reconstruction), a framework that applies an explicit appearance decomposition to the static background to alleviate appearance entanglement across traversals. For the static background, we decompose the appearance into traversal-invariant material, representing intrinsic material properties, and traversal-dependent illumination, capturing lighting variations. Specifically, we propose a neural light field that utilizes a frequency-separated hybrid encoding strategy. By incorporating surface normals and explicit reflection vectors, this design separately captures low-frequency diffuse illumination and high-frequency specular reflections. Quantitative evaluations on the Argoverse 2 and Waymo Open datasets demonstrate the effectiveness of ADM-GS. In multi-traversal experiments, our method achieves a +0.98 dB PSNR improvement over existing latent-based baselines while producing more consistent appearance across traversals. Code will be available at https://github.com/IRMVLab/ADM-GS.
format Preprint
id arxiv_https___arxiv_org_abs_2604_05908
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Appearance Decomposition Gaussian Splatting for Multi-Traversal Reconstruction
Xiao, Yangyi
Zhu, Siting
Yang, Baoquan
Deng, Tianchen
Chen, Yongbo
Wang, Hesheng
Computer Vision and Pattern Recognition
Multi-traversal scene reconstruction is important for high-fidelity autonomous driving simulation and digital twin construction. This task involves integrating multiple sequences captured from the same geographical area at different times. In this context, a primary challenge is the significant appearance inconsistency across traversals caused by varying illumination and environmental conditions, despite the shared underlying geometry. This paper presents ADM-GS (Appearance Decomposition Gaussian Splatting for Multi-Traversal Reconstruction), a framework that applies an explicit appearance decomposition to the static background to alleviate appearance entanglement across traversals. For the static background, we decompose the appearance into traversal-invariant material, representing intrinsic material properties, and traversal-dependent illumination, capturing lighting variations. Specifically, we propose a neural light field that utilizes a frequency-separated hybrid encoding strategy. By incorporating surface normals and explicit reflection vectors, this design separately captures low-frequency diffuse illumination and high-frequency specular reflections. Quantitative evaluations on the Argoverse 2 and Waymo Open datasets demonstrate the effectiveness of ADM-GS. In multi-traversal experiments, our method achieves a +0.98 dB PSNR improvement over existing latent-based baselines while producing more consistent appearance across traversals. Code will be available at https://github.com/IRMVLab/ADM-GS.
title Appearance Decomposition Gaussian Splatting for Multi-Traversal Reconstruction
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2604.05908