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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="description"
content="LightGaussian efficiently compresses 3D scene data, enhancing performance and reducing storage needs while preserving visual quality.">
<meta name="keywords" content="LightGaussian, lightgaussian, Gaussian Splatting, Gaussian">
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<title>MeGS-SLAM:Memory Efficient Gaussian Splatting SLAM with Graph Signal Processing</title>
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More Research
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HyperNeRF
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<h1 class="title is-1 publication-title"><span style="color: #e25757;font-weight: bolder;">MeGS-SLAM</span>: Memory Efficient Gaussian Splatting SLAM with Graph Signal Processing
</h1>
<!-- h3 class="title is-4 conference-authors"><a target="_blank" href="https://cvpr.thecvf.com/">CVPR 2024 (highlight)</a></h3 -->
<div class="is-size-5 publication-authors">
<span class="author-block">
<a href="">Sude Zhang</a><sup>1</sup><sup>*</sup>,</span>
<span class="author-block">
<a href="">Zhiyong Zhang</a><sup>1</sup><sup>*</sup>,</span>
<span class="author-block">
</div>
<div class="is-size-5 publication-authors">
<span class="author-block"><sup>1</sup>Sun Yat-sen University</span>
</div>
<!-- TODO: update paper and video link once upload -->
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<!-- <div class="publication-links"> -->
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<a href=""
class="external-link button is-normal is-rounded is-dark">
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<span>Paper</span>
</a>
</span>
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class="external-link button is-normal is-rounded is-dark">
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<span>arXiv</span>
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class="external-link button is-normal is-rounded is-dark">
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<span>Coming Soon</span>
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</section>
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type="video/mp4">
</video>
<h2 class="subtitle has-text-centered">
<span class="dnerf">Nerfies</span> turns selfie videos from your phone into
free-viewpoint
portraits.
</h2>
</div>
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</section> -->
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<p>The caption displays both the file size and the Structural Similarity Index (SSIM)</p>
</div>
</div>
</section> -->
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<!-- Paper video. -->
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<iframe src="https://www.youtube.com/embed/ZIYJmb10Y0o"
frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
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</section>
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<h2 class="title is-3" style="color: #e25757;font-weight: bolder;">Abstract</h2>
<div class="content has-text-justified">
<!-- img src="./static/images/head3.png" -->
<p>
Experiments performed on synthetic and real-world datasets show that our method achieves
over <span style="color: #e89292;font-weight: bolder;"> 2× </span> compression in memory usage and increases nearly
<span style="color: #e89292;font-weight: bolder;"> 250% </span> rendering speed while maintaining tracking and mapping performance. </p>
</div>
</div>
</div>
<!--/ Abstract. -->
<!-- Paper video. -->
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<h2 class="title is-3">Video</h2>
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encrypted-media; " allowfullscreen></iframe>
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<h2 class="title is-3" style="color: #e25757;font-weight: bolder;">Tracking Result</h2>
<div class="content has-text-justified">
<img src="./static/images/render/ablation_on_scannet.png">
<p>Result on Replica dataset
Result on TUM-RGBD dataset</p>
</div>
</div>
</div>
</div>
</section --!>
<section class="section">
<div class="container ">
<div class=" has-text-centered">
<h2 class="title is-3" style="color: #e25757;font-weight: bolder;">Ablation Study on ScanNet Dataset</h2>
<div class="content has-text-justified">
</div>
<div class="columns is-centered">
<!-- Visual Effects. -->
<div class="container is-max-desktop">
<div class="columns is-centered has-text-centered">
<div class="column is-full-width">
<div class="content has-text-justified">
<img src="./static/images/render/ablation_on_scannet.png">
</div>
</div>
</div>
</div>
</div>
</div>
<!--/ Visual Effects. -->
</section>
<section class="section">
<div class="container ">
<div class=" has-text-centered">
<div class="content has-text-justified">
<p>
<span style="color: #363636;font-size: 20px;font-weight: bolder;">Ablation on edge priors</span>
<span style="color: #363636;font-size: 20px;font-weight: bolder;">Ablation on GSP</span>
<p>
</div>
<div class="columns is-centered">
<!-- Visual Effects. -->
<div class="column">
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<div class="columns is-centered">
<div id="example1" class="bal-container-small">
<div class="bal-after">
<img src="./static/images/render/ablation_scannet_scene0_full_1955.png">
<div class="bal-afterPosition afterLabel" style="z-index:1;">
w/ edge priors
</div>
</div>
<div class="bal-before" style="width:96.4968152866242%;">
<div class="bal-before-inset" style="width: 539px;">
<img src="./static/images/render/ablation_scannet_scene0_main_1955.png">
<div class="bal-beforePosition beforeLabel">
w/o edge priors
</div>
</div>
</div>
<div class="bal-handle" style="left:96.4968152866242%;">
<span class=" handle-left-arrow"></span>
<span class="handle-right-arrow"></span>
</div>
</div>
<div id="example2" class="bal-container-small">
<div class="bal-after">
<img src="./static/images/render/full_addtext_scannet.png">
<div class="bal-afterPosition afterLabel">
w/ GSP
</div>
</div>
<div class="bal-before" style="width: 50%;">
<div class="bal-before-inset" style="width: 539px;">
<img src="./static/images/render/main_addtext_scannet.png">
<div class="bal-beforePosition beforeLabel">
w/o GSP
</div>
</div>
</div>
<div class="bal-handle" style="left: 50%;">
<span class=" handle-left-arrow"></span>
<span class="handle-right-arrow"></span>
</div>
</div>
</div>
</div>
</div>
</div>
<!--/ Visual Effects. -->
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<div id="example4" class="bal-container-small">
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<img src="./static/images/render/white.png">
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<div class="bal-before" style="width:96.4968152866242%;">
<div class="bal-before-inset" style="width: 539px;">
<img src="./static/images/render/white.png">
<div class="bal-beforePosition beforeLabel">
</div>
</div>
</div>
<div class="bal-handle" style="left:96.4968152866242%;">
<span class=" handle-left-arrow"></span>
<span class="handle-right-arrow"></span>
</div>
</div>
<div id="example5" class="bal-container-small">
<div class="bal-after">
<img src="./static/images/render/ablation_scannet_scene0_scaleoff_downsample.png">
<div class="bal-afterPosition afterLabel">
w/ GSP
</div>
</div>
<div class="bal-before" style="width: 50%;">
<div class="bal-before-inset" style="width: 539px;">
<img src="./static/images/render/ablation_scannet_scene0_scaleoff_main.png">
<div class="bal-beforePosition beforeLabel">
w/o GSP
</div>
</div>
</div>
<div class="bal-handle" style="left: 50%;">
<span class=" handle-left-arrow"></span>
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<!--/ Visual Effects. -->
<section class="section">
<div class="container ">
<div class=" has-text-centered">
<h2 class="title is-3" style="color: #e25757;font-weight: bolder;">Exprimental Results</h2>
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<div class=" has-text-centered">
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<h2 class="title is-4" style="color: #e25757;font-weight: bolder;">                                  
                         
                        Replica Dataset</h2>
<img src="./static/images/render/topview.png">
<p> It can be observed that the estimated camera poses (blue frustums and trajectories) accurately align with the ground truth camera poses (red frustums and trajectories). <p>
<p>
<span style="color: #363636;font-size: 20px;font-weight: bolder;">Room0</span>
<span style="color: #363636;font-size: 20px;font-weight: bolder;">Office0</span>
<p>
</div>
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<img src="./static/images/render/Scale_off_room0_9_full_cut.png">
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Ours
</div>
</div>
<div class="bal-before" style="width:96.4968152866242%;">
<div class="bal-before-inset" style="width: 539px;">
<img src="./static/images/render/Scale_off_room0_0_main_cut.png">
<div class="bal-beforePosition beforeLabel">
SplaTAM
</div>
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</div>
<div class="bal-handle" style="left:96.4968152866242%;">
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                        TUM-RGBD Dataset</h2>
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                                    ScanNet Dataset</h2>
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<p>Result on Replica dataset. We outperform existing dense neural RGB-D methods on the commonly reported
rendering metrics. Note that GS-SLAM achieves 386 FPS on average, benefitting from the efficient 3DGS scene representation.</p>
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