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<!--
* @Author: Yu Liu [email protected]
* @Date: 2023-01-30
* @LastEditors: Yu Liu [email protected]
* @LastEditTime: 2023-01-30
* @FilePath: \yuLiu-ly.github.io\index.html
* @Description: This is the Web Page of Yu Liu
-->
<!DOCTYPE HTML>
<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Yu Liu @ THU</title>
<meta name="author" content="Yu Liu">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="msvalidate.01" content="1D6EAEB9C6558C0BB977413398D67E91" />
<link rel="stylesheet" type="text/css" href="stylesheet.css">
<link rel="icon" href="images/icon.png">
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<body>
<table style="width:100%;max-width:800px;border:0px;border-spacing:0px;border-collapse:separate;margin-right:auto;margin-left:auto;"><tbody>
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<p style="text-align:center">
<name>Yu Liu </name><chname> (刘宇)</chname>
</p>
<p>
I'm Yu Liu, a first year Ph.D. student in <a href="https://www.au.tsinghua.edu.cn/" target="_blank">Department of Automation, Tsinghua University</a>, advised by <a href="https://www.zhusongchun.net" target="_blank">Prof. Song-Chun Zhu</a>.
I obtained my bachelor's degree in engineering from the Department of Automation at Tsinghua University, as the monitor of the <a href="https://tongclass.ac.cn" target="_blank">Tong Class</a> (an AGI program founded by <a href="https://www.zhusongchun.net" target="_blank">Prof. Song-Chun Zhu</a>).
I'm currently working at General Vision Lab in <a href="https://www.bigai.ai/" target="_blank">BIGAI</a> (Beijing Institute for General Artificial Intelligence) as a research intern
advised by <a href="https://buzz-beater.github.io" target="_blank">Dr. Baoxiong Jia</a> and <a href="https://siyuanhuang.com/" target="_blank">Dr. Siyuan Huang</a>.
</p>
<p>
My research interest lies in computer vision, specifically unsupervised object-centric learning, articulated object reconstruction and 3D/4D reconstruction/generation.
My hobbies are reading, music, natural scenery and meditation.
</p>
<p style="text-align:center">
<a href="mailto:[email protected]">Email</a>  / 
<a href="https://scholar.google.com/citations?user=t1-cWnoAAAAJ&hl=en" target="_blank">Google Scholar</a>  / 
<a href="https://github.com/yuLiu-ly/" target="_blank">Github</a>  / 
</p>
</td>
<td style="padding:2.5%;width:30%;max-width:30%">
<a href="images/Personal/Yu1.jpg"><img style="width:150%;max-width:150%" alt="profile photo" src="images/Personal/Yu1.jpg" class="hoverZoomLink"></a>
</td>
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</tbody></table>
<!-- RESEARCH -->
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<heading>Research</heading>
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<img src='images/Research/slotlifter.png' width="190"></div>
<img src='images/Research/slotlifter.png' width="190">
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<papertitle>SlotLifter: Slot-guided Feature Lifting for Learning Object-centric Radiance Fields</papertitle>
<br>
<strong>Yu Liu*</strong>,
<a href="https://buzz-beater.github.io/" target="_blank">Baoxiong Jia*</a>,
<a href="https://yixchen.github.io/" target="_blank">Yixin Chen</a>,
<a href="https://siyuanhuang.com/" target="_blank">Siyuan Huang</a>,
<br>
<em>ECCV</em> 2024
<br>
<a href="https://arxiv.org/abs/2408.06697" target="_blank">[Paper]</a>
 
<a href="https://slotlifter.github.io/" target="_blank">[Project Page]</a>
 
<a href="https://slotlifter.github.io/" target="_blank">[Code (Coming soon)]</a>
<br>
<abs>
We propose SlotLifter, a novel object-centric radiance model that aims to address the challenges of scene reconstruction and decomposition via slot-guided feature lifting. Such a design unites object-centric learning representations and image-based rendering methods, offering state-of-the-art performance in scene decom-position and novel-view synthesis on four challenging synthetic and four complex real-world datasets, outperforming existing 3D object-centric learning methods by a large margin.
</abs>
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<img src='images/Research/overview_new.png' width="190">
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<papertitle>Improving Object-centric Learning With Query Optimization</papertitle>
<br>
<a href="https://buzz-beater.github.io/" target="_blank">Baoxiong Jia*</a>,
<strong>Yu Liu*</strong>,
<a href="https://siyuanhuang.com/" target="_blank">Siyuan Huang</a>,
<br>
<em>ICLR</em> 2023
<br>
<a href="https://arxiv.org/abs/2210.08990" target="_blank">[Paper]</a>
 
<a href="https://bo-qsa.github.io/" target="_blank">[Project Page]</a>
 
<a href="https://github.com/YuLiu-LY/BO-QSA" target="_blank">[Code]</a>
<br>
<abs>
We proposed methods for (1) initializing Slot-Attention modules with learnable queries and
(2) optimizing the model with bi-level optimization. With simple code adjustments on the
vanilla Slot-Attention, our model, Bi-level Optimized Query Slot Attention,
achieves state-of-the-art results on 3 challenging synthetic and 7 complex real-world datasets
in unsupervised image segmentation and reconstruction, outperforming previous baselines by a large margin.
</abs>
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<!-- EXPERIENCE -->
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<heading>Experience</heading>
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<td style="padding:10px;width:18px;vertical-align:middle"><img src="images/Institution/bigai.png", width="100px"></td>
<td width="90%" valign="center">
<b>Beijing Institute for General Artificial Intelligence(BIGAI)</b>, China
<br> 2021.09 - now
<br>
<br> <b>Research Intern</b>
<br> Advisor: <a href="https://buzz-beater.github.io/">Dr. Baoxiong Jia</a>
</td>
</tr>
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<td style="padding:10px;width:18px;vertical-align:middle"><img src="images/Institution/tsinghua.svg", width="100px"></td>
<td width="90%" valign="center">
<b>Tsinghua University</b>, China
<br> 2024.08 - now
<br>
<br> <b>Ph.D. Student</b>
</td>
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<td style="padding:10px;width:18px;vertical-align:middle"><img src="images/Institution/tsinghua.svg", width="100px"></td>
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<b>Tsinghua University</b>, China
<br> 2020.08 - 2024.07
<br>
<br> <b>Undergraduate Student</b>
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<heading>Selected Awards and Honors</heading>
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<ul>
<li>Tsinghua University outstanding undergraduate graduation thesis</li>
<li>Person of the Year 2023, Department of Automation, Tsinghua University</li>
<li>Tsinghua University Comprehensive Excellent Award (2020 & 2022)</li>
<li>Tsinghua Science and Technology Innovation Excellence Award (2021)</li>
<li>Research Star Award, Beijing Institute for General Artificial Intelligence(BIGAI)</li>
<li>Huang Yicong Scholarship, Research Excellence Award</li>
</ul>
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<p style="text-align:right;font-size:small;">
Thanks for your visiting by 😊.
<br>
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