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<!DOCTYPE html>
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<meta name="description"
content="DeSplat: Decomposed Gaussian Splatting for Distractor-Free Rendering">
<meta name="keywords" content="Gaussian Splatting, Distractor-Free Rendering, Computer Graphics">
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<title>DeSplat: Decomposed Gaussian Splatting for Distractor-Free Rendering</title>
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<h1 class="title is-1 publication-title">DeSplat: Decomposed Gaussian Splatting for Distractor-Free Rendering</h1>
<div class="is-size-5 publication-authors">
<span class="author-block">
<a href="https://johanna0626.github.io/">Yihao Wang</a><sup>1</sup>,</span>
<span class="author-block">
<a href="https://marcusklasson.github.io/">Marcus Klasson</a><sup>2</sup>,</span>
<span class="author-block">
<a href="https://maturk.github.io/">Matias Turkulainen</a><sup>2</sup>,
</span>
<span class="author-block">
<a href="https://ffrivera0.github.io/">Shuzhe Wang</a><sup>2</sup>,
</span>
<span class="author-block">
<a href="https://users.aalto.fi/~kannalj1/">Juho Kannala</a><sup>2,3</sup>,
</span>
<span class="author-block">
<a href="https://users.aalto.fi/~asolin/">Arno Solin</a><sup>2</sup>
</span>
</div>
<div class="is-size-5 publication-authors">
<span class="author-block"><sup>1</sup>Technical University of Munich,</span>
<span class="author-block"><sup>2</sup>Aalto University,</span>
<span class="author-block"><sup>3</sup>University of Oulu</span>
</div>
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<a href="https://arxiv.org/abs/2411.19756"
class="external-link button is-normal is-rounded is-dark">
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<span>arXiv</span>
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</div>
</section>
<section class="section" style="margin-top: -50px;">
<div class="container is-max-desktop">
<!-- TLDR. -->
<div class="content" style="display: flex;">
<h2 class="title is-5" style="margin-right: 10px; white-space: nowrap; letter-spacing: -2px;">
<span style="color: red;">T</span>
<span style="color: blue;">L</span>
<span style="color: green;">D</span>
<span style="color: orange;">R</span>
<span style="color: black;">:</span>
</h2>
<div class="content has-text-justified">
<p>
<b>We model distractors and multi-view inconsistencies in captured frames with view-specific Gaussians in each camera view. We decompose alpha compositing and explicitly separate occluders and the underlying static 3D scene.</b>
</p>
</div>
</div>
<!--/ TLDR. -->
</div>
</section>
<section class="teaser">
<div class="container is-max-desktop">
<div class="columns is-vcentered interpolation-panel">
<img src="asset/firstpage_desplat.png"\>
</div>
</div>
</section>
<section class="section">
<div class="container is-max-desktop">
<!-- Abstract. -->
<div class="columns is-centered has-text-centered">
<div class="column is-four-fifths">
<h2 class="title is-3">Abstract</h2>
<div class="content has-text-justified">
<p>
Gaussian splatting enables fast novel view synthesis in static 3D environments.
However, reconstructing real-world environments remains challenging as distractors or occluders break the multi-view consistency assumption required for accurate 3D reconstruction.
Most existing methods rely on external semantic information from pre-trained models, introducing
additional computational overhead as pre-processing steps or during optimization.
In this work, we propose a novel method, <span class="dnerf">DeSplat</span>, that directly separates distractors and static scene elements purely based on volume rendering of Gaussian primitives.
We initialize Gaussians within each camera view for reconstructing the view-specific distractors to separately model the static 3D scene and distractors in the alpha compositing stages.
<span class="dnerf">DeSplat</span> yields an explicit scene separation of static elements and distractors, achieving comparable results to prior distractor-free approaches without sacrificing rendering speed.
We demonstrate <span class="dnerf">DeSplat</span>'s effectiveness on three benchmark data sets for distractor-free novel view synthesis.
</p>
</div>
</div>
</div>
</div>
</section>
<section class="section">
<div class="container is-max-desktop">
<div class="has-text-centered" >
<h2 class="title is-3">Pipeline</h2>
<div class="columns is-four-fifths">
<img src="asset/pipeline.png" style="width: 80%; height: auto; margin: 0 auto;"\>
</div>
<p>We decompose 3DGS to model the static scene and per-view distractors explicitly.</p>
</div>
</div>
</section>
<section class="hero is-light is-small">
<div class="hero-body has-text-centered">
<h2 class="title is-3">Videos</h2>
<p>We visualize the spot, statue, and yoda scenes, highlighting the differences between ours and the Splatfacto.</p>
<div class="container is-max-desktop">
<div style="height: 20px;"></div>
<!-- <div class="has-text-centered", > -->
<div class="item item-spot">
<video poster="" id="spot" autoplay controls muted loop playsinline width="60%">
<source src="./asset/videos/spot_comparison.mp4"
type="video/mp4">
</video>
<!-- </div> -->
</div>
<!-- <div class="column is-3 has-text-centered"> -->
<div class="item item-statue">
<video poster="" id="statue" autoplay controls muted loop playsinline width="60%">
<source src="./asset/videos/statue_comparison.mp4"
type="video/mp4">
</video>
<!-- </div> -->
</div>
<!-- <div class="column is-3 has-text-centered"> -->
<div class="item item-yoda">
<video poster="" id="yoda" autoplay controls muted loop playsinline width="60%">
<source src="./asset/videos/yoda_comparison.mp4"
type="video/mp4">
</video>
<!-- </div> -->
</div>
</div>
</div>
<!-- </div> -->
</section>
<!--Visuals-->
<section class="section">
<div class="container hero-body">
<div class="column has-text-centered">
<h2 class="title is-3">Qualitative Visuals</h2>
</div>
<!--RGB/Depths/Normals-->
<p><strong>Scene decomposition:</strong> We visualize the result of optimized distractor Gaussians, the static 3D scene, and the combined alpha-composited images.</p>
<div class="columns is-centered is-gapless">
<div class="column is-one-third has-text-centered">
<div class="twentytwenty-container twentytwenty-custom">
<img src="asset/images/illustration/android/eval_img_dyn_0011.png" alt="Distractor Gaussians">
<img src="asset/images/illustration/android/eval_rgb_static_0011.png" alt="Static scene">
<img src="asset/images/illustration/android/eval_img_0011.png" alt="Combined">
</div>
</div>
<div class="column is-one-third has-text-centered">
<div class="twentytwenty-container twentytwenty-custom">
<img src="asset/images/illustration/statue/eval_img_dyn_0064.png" alt="Distractor Gaussians">
<img src="asset/images/illustration/statue/eval_rgb_static_0064.png" alt="Static scene">
<img src="asset/images/illustration/statue/eval_img_0064.png" alt="Combined">
</div>
</div>
<div class="column is-one-third has-text-centered">
<div class="twentytwenty-container twentytwenty-custom">
<img src="asset/images/illustration/patio_high/eval_img_dyn_0073.png" alt="Distractor Gaussians">
<img src="asset/images/illustration/patio_high/eval_rgb_static_0073.png" alt="Static scene">
<img src="asset/images/illustration/patio_high/eval_img_0073.png" alt="Combined">
</div>
</div>
</div>
<p><strong>Baseline comparisons:</strong> We visualize renderings compared to baseline methods.</p>
<!--SpotlessSplats-->
<div class="columns is-centered is-gapless">
<div class="column is-one-third has-text-centered">
<div class="twentytwenty-container twentytwenty-custom">
<img src="asset/images/qualitative/proposal 2/statue/eval_img_0010-sf.png" alt="Splatfacto">
<img src="asset/images/qualitative/proposal 2/statue/val_colors_0014.jpg" alt="SpotLessSplats">
<img src="asset/images/qualitative/proposal 2/statue/eval_img_0010-ours.png" alt="Ours">
<img src="asset/images/qualitative/proposal 2/statue/eval_img_0010-GT.png" alt="GT">
</div>
</div>
<div class="column is-one-third has-text-centered">
<div class="twentytwenty-container twentytwenty-custom">
<img src="asset/images/qualitative/proposal 2/android/eval_img_0007_sf.png" alt="Splatfacto">
<img src="asset/images/qualitative/spotlesssplats/android/val_colors_0017.jpg" alt="SpotlessSplats">
<img src="asset/images/qualitative/proposal 2/android/eval_img_0007_ours.png" alt="Ours">
<img src="asset/images/qualitative/proposal 2/android/eval_img_0007 -GT.png" alt="GT">
</div>
</div>
<div class="column is-one-third has-text-centered">
<div class="twentytwenty-container twentytwenty-custom">
<img src="asset/images/qualitative/proposal 2/corner/corner-ours.png" alt="Splatfacto">
<img src="asset/images/qualitative/spotlesssplats/corner/val_colors_0000.jpg" alt="SpotlessSplats">
<img src="asset/images/qualitative/proposal 2/corner/corner-ours.png" alt="Ours">
<img src="asset/images/qualitative/proposal 2/corner/corner-GT.png" alt="GT">
</div>
</div>
</div>
<!--Wild gaussians-->
<div class="columns is-centered is-gapless">
<div class="column is-one-third has-text-centered">
<div class="twentytwenty-container twentytwenty-custom">
<img src="asset/images/qualitative/proposal 2/phototourism/brandenburg/eval_img_0006-sf.png" alt="Splatfacto">
<img src="asset/images/qualitative/proposal 2/phototourism/brandenburg/WildGaussians_6.png" alt="WildGaussians">
<img src="asset/images/qualitative/proposal 2/phototourism/brandenburg/render_6.jpg" alt="Ours">
<img src="asset/images/qualitative/proposal 2/phototourism/brandenburg/88909760_6880126015.jpg" alt="GT">
</div>
</div>
<div class="column is-one-third has-text-centered">
<div class="twentytwenty-container twentytwenty-custom">
<img src="asset/images/qualitative/proposal 2/phototourism/sacre/eval_img_0004_sf.png" alt="Splatfacto">
<img src="asset/images/qualitative/proposal 2/phototourism/sacre/WildGaussians.png" alt="WildGaussians">
<img src="asset/images/qualitative/proposal 2/phototourism/sacre/render_4_A.jpg" alt="Ours">
<img src="asset/images/qualitative/proposal 2/phototourism/sacre/eval_img_0004_GT.png" alt="GT">
</div>
</div>
<div class="column is-one-third has-text-centered">
<div class="twentytwenty-container twentytwenty-custom">
<img src="asset/images/qualitative/proposal 2/yoda/eval_img_0045-sf.png" alt="Splatfacto">
<img src="asset/images/qualitative/proposal 2/yoda/val_0054.png" alt="SpotlessSplats">
<img src="asset/images/qualitative/proposal 2/yoda/eval_img_0045-ours.png" alt="Ours">
<img src="asset/images/qualitative/proposal 2/yoda/eval_img_0045-gt.png" alt="GT">
</div>
</div>
</div>
</div>
</section>
<section class="section">
<div class="container is-max-desktop">
<div class="columns">
<!-- Concurrent Work. -->
<div class="columns">
<div class="column is-full-width">
<h2 class="title is-3">Related Links</h2>
<div class="content has-text-justified">
<p>
Check out some interesting works related to distractor-free Gaussian splatting:
<ul>
<li> <a href="https://spotlesssplats.github.io/">SpotLessSplats: Ignoring Distractors in 3D Gaussian Splatting.</a> </li>
<li> <a href="https://github.com/jkulhanek/wild-gaussians/">WildGaussians: 3D Gaussian Splatting in the Wild.</a> </li>
<li> <a href="https://arxiv.org/abs/2403.10427">SWAG: Splatting in the Wild images with Appearance-conditioned Gaussians.</a> </li>
<li> <a href="https://eastbeanzhang.github.io/GS-W/">Gaussian in the Wild: 3D Gaussian Splatting for Unconstrained Image Collections.</a> </li>
<li> <a href="https://arxiv.org/abs/2406.10373">Wild-GS: Real-Time Novel View Synthesis from Unconstrained Photo Collections.</a> </li>
</ul>
</p>
<p>
There are also some exciting, concurrent works that was introduced around the same time as ours:
<ul>
<li> <a href="https://gujiaqivadin.github.io/hybridgs/">HybridGS</a> introduces an idea similar to our explicit separation of distractors and static elements by modeling these with 2DGS and 3DGS respectively. </li>
<li> <a href="https://transient-3dgs.github.io/">T-3DGS</a> focus on removing distractors from input videos for reconstruction with 3DGS and employs Segment Anything Model (SAM) for refining transient masks.
</li>
</ul>
</p>
</div>
</div>
</div>
</div>
</section>
<section class="section" id="BibTeX">
<div class="container is-max-desktop content">
<h2 class="title">BibTeX</h2>
<pre><code>@article{wang2024desplat,
title={{DeSplat}: {D}ecomposed {G}aussian Splatting for Distractor-Free Rendering},
author={Yihao Wang and Marcus Klasson and Matias Turkulainen and Shuzhe Wang and Juho Kannala and Arno Solin},
year={2024},
journal={arXiv preprint arxiv:2411.19756}
}</code></pre>
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