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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Zhiwei Zhu | 朱志伟</title>
<meta name="description" content="PhD Candidate at ZJU, working on 3D computer vision and visual data compression.">
<link rel="shortcut icon" href="images/star.svg">
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<body>
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<button id="theme-btn" class="icon-btn" aria-label="Toggle Dark Mode">
<i class="ri-moon-line"></i>
</button>
</div>
<main class="container">
<header class="hero-section">
<div class="hero-content">
<h1 class="name">Zhiwei Zhu <span class="cn-name">(朱志伟)</span></h1>
<p class="bio">
I am currently a PhD candidate at the College of Information Science and Electronic Engineering of <a href="https://www.zju.edu.cn/">Zhejiang University (ZJU)</a> (2021-Present), supervised by <a href="https://mypage.zju.edu.cn/yul">Prof. Lu Yu</a>, with guidance from <a href="https://yiyiliao.github.io/">Asst. Prof. Yiyi Liao</a>.
<br>
I got my B.Eng. degree in Electronic Information Engineering at the Qiushi Honors College (now known as the College of Future Technology) of <a href="https://www.tju.edu.cn/">Tianjin University (TJU)</a> in 2021.
<br>
My research interests lie in 3D computer vision and visual data compression.
</p>
<div class="social-row">
<a href="mailto:zhuzhiwei21@zju.edu.cn" class="social-btn" title="Email">
<i class="ri-mail-send-line"></i> <span>Email</span>
</a>
<a href="data/CV_ZhiweiZhu.pdf" class="social-btn" title="CV">
<i class="ri-file-user-line"></i> <span>CV</span>
</a>
<a href="https://scholar.google.com/citations?user=MKdEw1QAAAAJ" class="social-btn" title="Google Scholar">
<i class="ri-graduation-cap-line"></i> <span>Scholar</span>
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<a href="https://github.com/zhuzhiwei99/" class="social-btn" title="GitHub">
<i class="ri-github-line"></i> <span>GitHub</span>
</a>
<a href="https://blog.csdn.net/weixin_43693967" class="social-btn" title="CSDN">
<i class="ri-article-line"></i> <span>CSDN</span>
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</div>
<div class="hero-avatar-wrapper">
<img src="images/zzw-20221127-cube.jpg" alt="Zhiwei Zhu" class="avatar">
</div>
</header>
<section class="section">
<h2 class="section-title"><i class="ri-megaphone-line icon-prefix"></i> News</h2>
<div class="scrollable h-news">
<ul class="news-list">
<li>
<span class="news-date">[Mar. 2026]</span>
<div class="news-content">
Our work LowRankSH is accepted by TCSVT!
</div>
</li>
<li>
<span class="news-date">[Dec. 2025]</span>
<div class="news-content">
1 paper is accepted by ISCAS 2026.
</div>
</li>
<li>
<span class="news-date">[Oct. 2025]</span>
<div class="news-content">
Release the code of UniGSC.
</div>
</li>
<li>
<span class="news-date">[Sep. 2025]</span>
<div class="news-content">
1 paper is accepted by VCIP 2025.
</div>
</li>
<li>
<span class="news-date">[Jun. 2025]</span>
<div class="news-content">
Our work NeuralMeshRefinement is selected as the Cover Article of FITEE!
</div>
</li>
</ul>
</div>
</section>
<section class="section">
<h2 class="section-title"><i class="ri-article-line icon-prefix"></i> Selected Publications</h2>
<div class="scrollable h-papers">
<article class="paper-card">
<div class="paper-img-wrapper">
<img src="projects/2026_LowRankSH/teaser.jpg" alt="LowRankSH" loading="lazy">
</div>
<div class="paper-info">
<h3 class="paper-title">Low-Rank Approximation for Efficient Compression of Gaussian Splatting Spherical Harmonics</h3>
<div class="paper-authors"><strong>Zhiwei Zhu</strong>, Sicheng Li, Yiyi Liao, Lu Yu</div>
<div class="paper-venue">TCSVT, 2026</div>
<p class="paper-desc">A systematic study that reveals and leverages the intrinsic low-rank structure of SH coefficients in 3DGS for efficient compression.</p>
<div class="tags-row">
<a href="projects/2026_LowRankSH/Low-Rank_Approximation_for_Efficient_Compression_of_Gaussian_Splatting_Spherical_Harmonics.pdf" class="tag tag-pdf"><i class="ri-file-pdf-line"></i> Paper</a>
<a href="https://github.com/zhuzhiwei99/UniGSC/blob/main/gsc/pre_post_process/transform.py" class="tag tag-code"><i class="ri-code-s-slash-line"></i> Code</a>
<a href="projects/2026_LowRankSH/LowRankSH.txt" class="tag tag-bib"><i class="ri-double-quotes-l"></i> Bibtex</a>
</div>
</div>
</article>
<article class="paper-card">
<div class="paper-img-wrapper">
<img src="projects/2026_DualHilbert/teaser.jpg" alt="DualHilbert" loading="lazy">
</div>
<div class="paper-info">
<h3 class="paper-title">Dual-Hilbert Scan for Efficient Video-Based Gaussian Splatting Compression</h3>
<div class="paper-authors"><strong>Zhiwei Zhu</strong>, Yiyi Liao, Lu Yu</div>
<div class="paper-venue">ISCAS, 2026</div>
<p class="paper-desc">A GPU-accelerated Dual-Hilbert scan algorithm mapping 3D Gaussians to 2D videos, enabling efficient 3DGS compression over 500× faster than PLAS.</p>
<div class="tags-row">
<a href="projects/2026_DualHilbert/Dual_Hilbert_Scan_for_Efficient_Video_Based_Gaussian_Splatting_Compression.pdf" class="tag tag-pdf"><i class="ri-file-pdf-line"></i> Paper</a>
<a href="https://github.com/zhuzhiwei99/UniGSC/blob/main/gsc/map/hilbert_curve_fast.py" class="tag tag-code"><i class="ri-code-s-slash-line"></i> Code</a>
<a href="projects/2026_DualHilbert/DualHilbert.txt" class="tag tag-bib"><i class="ri-double-quotes-l"></i> Bibtex</a>
</div>
</div>
</article>
<article class="paper-card">
<div class="paper-img-wrapper">
<img src="projects/2025_EliGeo/teaser.jpg" alt="EliGeo" loading="lazy">
</div>
<div class="paper-info">
<h3 class="paper-title">Eliminating Geometric Representation Redundancy for 3D Gaussian Splat Coding</h3>
<div class="paper-authors">Shanchuan Liu*, <strong>Zhiwei Zhu*</strong>, Sicheng Li, Yiyi Liao, Lu Yu</div>
<div class="paper-venue">VCIP, 2025</div>
<p class="paper-desc">A lightweight preprocessing method canonicalizing scale and rotation in 3DGS to reduce redundancy.</p>
<div class="tags-row">
<a href="projects/2025_EliGeo/Eliminating_Geometric_Representation_Redundancy_for_3D_Gaussian_Splat_Coding.pdf" class="tag tag-pdf"><i class="ri-file-pdf-line"></i> Paper</a>
<a href="https://github.com/zhuzhiwei99/UniGSC/blob/main/gsc/pre_post_process/transform.py" class="tag tag-code"><i class="ri-code-s-slash-line"></i> Code</a>
<a href="projects/2025_VGSC/VGSC.txt" class="tag tag-bib"><i class="ri-double-quotes-l"></i> Bibtex</a>
</div>
</div>
</article>
<article class="paper-card">
<div class="paper-img-wrapper">
<img src="projects/2025_UniGSC/teaser.png" alt="UniGSC" loading="lazy">
</div>
<div class="paper-info">
<h3 class="paper-title">UniGSC: Unified Gaussian Splats Codec</h3>
<div class="paper-authors"><strong>Zhiwei Zhu</strong>, Sicheng Li, Yiyi Liao, Lu Yu</div>
<div class="paper-venue">Github, 2025</div>
<p class="paper-desc">A highly modular framework for compressing static/dynamic Gaussian splats, supporting video and point cloud codecs.</p>
<div class="tags-row">
<a href="https://github.com/zhuzhiwei99/UniGSC" class="tag tag-code"><i class="ri-code-s-slash-line"></i> Code</a>
<a href="projects/2025_VGSC/VGSC.txt" class="tag tag-bib"><i class="ri-double-quotes-l"></i> Bibtex</a>
</div>
</div>
</article>
<article class="paper-card">
<div class="paper-img-wrapper">
<img src="projects/2025_NMR/teaser.jpg" alt="NMR" loading="lazy">
</div>
<div class="paper-info">
<h3 class="paper-title">Neural Mesh Refinement</h3>
<div class="paper-authors"><strong>Zhiwei Zhu</strong>, Xiang Gao, Lu Yu, Yiyi Liao</div>
<div class="paper-venue">FITEE, 2025 (Cover Article)</div>
<p class="paper-desc">A neural mesh refinement method that utilizes a learned geometric prior on fine shapes to adaptively refine coarse meshes.</p>
<div class="tags-row">
<a href="https://zhuzhiwei99.github.io/NeuralMeshRefinement" class="tag tag-page"><i class="ri-global-line"></i> Project</a>
<a href="projects/2025_NMR/Neural_mesh_refinement.pdf" class="tag tag-pdf"><i class="ri-file-pdf-line"></i> Paper</a>
<a href="https://github.com/zhuzhiwei99/NeuralMeshRefinement" class="tag tag-code"><i class="ri-code-s-slash-line"></i> Code</a>
<a href="projects/2025_NMR/NMR.txt" class="tag tag-bib"><i class="ri-double-quotes-l"></i> Bibtex</a>
</div>
</div>
</article>
<article class="paper-card">
<div class="paper-img-wrapper">
<img src="projects/2023_PC4M/teaser.png" alt="PC4M" loading="lazy">
</div>
<div class="paper-info">
<h3 class="paper-title">Bird’s-Eye-View-Based LiDAR Point Cloud Coding For Machines</h3>
<div class="paper-authors">Xiang Gao, <strong>Zhiwei Zhu</strong>, Lu Yu</div>
<div class="paper-venue">VCIP, 2023</div>
<p class="paper-desc">An end-to-end learnt point cloud coding framework for 3D machine intelligent tasks with BEV representation.</p>
<div class="tags-row">
<a href="projects/2023_PC4M/Birds-Eye-View-Based_LiDAR_Point_Cloud_Coding_For_Machines.pdf" class="tag tag-pdf"><i class="ri-file-pdf-line"></i> Paper</a>
<a href="projects/2023_PC4M/PC4M.txt" class="tag tag-bib"><i class="ri-double-quotes-l"></i> Bibtex</a>
</div>
</div>
</article>
</div>
</section>
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<img src="images/huawei_logo.png" alt="Huawei" class="list-logo">
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<span class="list-org">Huawei, Beijing</span>
<span class="list-date">Summer 2020</span>
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<div class="list-role">Intern, Data Communications Bull Lab</div>
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<h2 class="section-title"><i class="ri-medal-line icon-prefix"></i> Honors & Awards</h2>
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<img src="images/zju_logo.svg" alt="ZJU" class="list-logo">
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<div class="content-wrapper">
<div class="title-en">ZJU Excellent Graduate</div>
<div class="title-cn">浙江大学优秀毕业研究生</div>
</div>
<div class="date-right">2026</div>
</div>
<div class="bilingual-row">
<div class="content-wrapper">
<div class="title-en">ZJU Merit Graduate Student</div>
<div class="title-cn">浙江大学五好研究生</div>
</div>
<div class="date-right">2023</div>
</div>
<div class="bilingual-row">
<div class="content-wrapper">
<div class="title-en">ZJU Excellent Graduate Student Cadre</div>
<div class="title-cn">浙江大学优秀研究生干部</div>
</div>
<div class="date-right">2023</div>
</div>
<div class="bilingual-row">
<div class="content-wrapper">
<div class="title-en">ZJU Excellent Graduate Student</div>
<div class="title-cn">浙江大学优秀研究生</div>
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<div class="date-right">2022-2025</div>
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<img src="images/tju_logo_tp.svg" alt="TJU" class="list-logo">
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<div class="title-en">TJU Outstanding Student</div>
<div class="title-cn">天津大学优异生</div>
</div>
<div class="date-right">2021</div>
</div>
<div class="bilingual-row">
<div class="content-wrapper">
<div class="title-en">National Encouragement Scholarship</div>
<div class="title-cn">国家励志奖学金</div>
</div>
<div class="date-right">2018-2020</div>
</div>
<div class="bilingual-row">
<div class="content-wrapper">
<div class="title-en">TJU Merit Student</div>
<div class="title-cn">天津大学三好学生</div>
</div>
<div class="date-right">2018-2020</div>
</div>
<div class="bilingual-row">
<div class="content-wrapper">
<div class="title-en">MCM/ICM Honorable Mention</div>
<div class="title-cn">美国大学生数学建模竞赛二等奖</div>
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<div class="date-right">2019</div>
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<h2 class="section-title"><i class="ri-service-line icon-prefix"></i> Services</h2>
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<div class="content-wrapper">
<div class="title-en">Vice President, Hangzhou Alumni Association of Ruijin No.1 Middle School</div>
<div class="title-cn">瑞金一中杭州校友会副会长</div>
</div>
<div class="date-right">2024-Present</div>
</div>
<div class="bilingual-row">
<div class="content-wrapper">
<div class="title-en">Team Leader, ZJU "Gongyi" Plan Summer Service Team (Jiangxi)</div>
<div class="title-cn">浙江大学公毅计划江西暑期基层服务团团长</div>
</div>
<div class="date-right">Summer, 2024</div>
</div>
<div class="bilingual-row">
<div class="content-wrapper">
<div class="title-en">Teaching Assistant, Scientific Research and Innovation Methodology, College of ISEE, ZJU</div>
<div class="title-cn">浙江大学信电学院科学研究与技术创新方法课助教</div>
</div>
<div class="date-right">2022-2024</div>
</div>
<div class="bilingual-row">
<div class="content-wrapper">
<div class="title-en">Graduate Counselor, College of ISEE, ZJU</div>
<div class="title-cn">浙江大学信电学院研究生兼职辅导员</div>
</div>
<div class="date-right">2021-2023</div>
</div>
<div class="bilingual-row">
<div class="content-wrapper">
<div class="title-en">President, TJU Speech and Eloquence Association</div>
<div class="title-cn">天津大学演讲与口才协会主席</div>
</div>
<div class="date-right">2019-2020</div>
</div>
</div>
</div>
</section>
<section class="section">
<h2 class="section-title"><i class="ri-camera-lens-line icon-prefix"></i> Misc</h2>
<p>
My nickname is "繁星知微" (Shine like stella, Perceive the subtle).<br>
I like all kinds of sports, including running, cycling, basketball, badminton, frisbee and so on.
</p>
<p>
I also like photography, the magic of freezing time. I love using my lens to capture the beauty.<br>
Welcome to follow my social media accounts:
</p>
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