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<title>GS-3I: Gaussian Splatting for Surface Reconstruction from Illumination-Inconsistent Images</title>

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<h1 class="title is-1 publication-title">GS-3I: Gaussian Splatting for Surface Reconstruction from Illumination-Inconsistent Images</h1>
<div class="is-size-5 publication-authors">
<span class="author-block">
<a href="https://github.com/TFwang-9527/GS-3I">Tengfei Wang</a></sup></span>&nbsp;&nbsp;
</span>
<span class="author-block">
<a href="">Yongmao Hou</a></sup>&nbsp;&nbsp;
</span>
<span class="author-block">
<a href="">Zhaoning Zhang</a></sup>&nbsp;&nbsp;
</span>
<span class="author-block">
<a href="">Yiwei Xu</a></sup>&nbsp;&nbsp;
</span>
<span class="author-block">
<a href="">Zongqian Zhan</a>&#9993;</sup>&nbsp;&nbsp;
<span class="author-block">
<a href="https://xwangsgg.github.io/"> Xin Wang</a>&#9993;</sup>&nbsp;&nbsp;
</span>
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<div class="is-size-4 publication-authors">
<span class="author-block"><sup>School of Geodesy and Geomatics, Wuhan University</span>&nbsp;&nbsp;
<br>
<span class="email-link">
<!-- <a href="mailto:zqzhan@sgg.whu.edu.cn">zqzhan@sgg.whu.edu.cn</a> -->
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<!-- <a href="mailto:xwang@sgg.whu.edu.cn">xwang@sgg.whu.edu.cn</a> -->
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<h2 class="title is-3">Abstract</h2>
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<p>
Accurate geometric surface reconstruction, providing essential environmental information for navigation and manipulation tasks, is critical for enabling robotic
self-exploration and interaction. Recently, 3D Gaussian Splatting (3DGS) has gained significant attention in the field of surface reconstruction due to its impressive
geometric quality and computational efficiency. While recent relevant advancements in novel view synthesis under inconsistent illumination using 3DGS have shown promise,
the challenge of robust surface reconstruction under such conditions is still being explored. To address this challenge, we propose a method called GS-3I.
Specifically, to mitigate 3D Gaussian optimization bias caused by underexposed regions in single-view images, based on Convolutional Neural Network (CNN), a tone mapping
correction framework is introduced. Furthermore, inconsistent lighting across multi-view images, resulting from variations in camera settings and complex scene illumination,
often leads to geometric constraint mismatches and deviations in the reconstructed surface. To overcome this, we propose a normal compensation mechanism that integrates
reference normals extracted from single-view image with normals computed from multi-view observations to effectively constrain geometric inconsistencies. Extensive
experimental evaluations demonstrate that GS-3I can achieve robust and accurate surface reconstruction across complex illumination scenarios, highlighting
its effectiveness and versatility in this critical challenge.https://github.com/TFwang-9527/GS-3I
</p>
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<h2 class="title">BibTeX</h2>
<pre><code>
@article{2025GS-3I,
title={GS-3I: Gaussian Splatting for Surface Reconstruction from Illumination-Inconsistent Images},
author={Tengfei Wang, Yongmao Hou, Zhaoning Zhang, Yiwei Xu, Zongqian Zhan and Xin Wang},
booktitle={arxiv preprint arxiv:},
year={2025}
}
```</code></pre>
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