Yu Liu @ THU

Yu Liu (刘宇)

I'm Yu Liu, a Ph.D. candidate in Department of Automation, Tsinghua University, advised by Prof. Song-Chun Zhu. I joined the Tong Class (an AGI program founded by Prof. Song-Chun Zhu), being a member and the monitor in the class of 2020. I'm currently working at General Vision Lab in BIGAI (Beijing Institute for General Artificial Intelligence) as a research intern advised by Dr. Baoxiong Jia and Dr. Siyuan Huang.

My research interest lies in computer vision, specifically unsupervised object-centric learning. My hobbies are reading, music, natural scenery and meditation.

Email / Google Scholar / Github /

Research

SlotLifter: Slot-guided Feature Lifting for Learning Object-centric Radiance Fields
Yu Liu*, Baoxiong Jia*, Yixin Chen, Siyuan Huang,
ECCV 2024
[Paper] [Project Page] [Code (Coming soon)]
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.

Improving Object-centric Learning With Query Optimization
Baoxiong Jia*, Yu Liu*, Siyuan Huang,
ICLR 2023
[Paper] [Project Page] [Code]
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.

Experience

	Beijing Institute for General Artificial Intelligence(BIGAI), China 2021.09 - now Research Intern Advisor: Dr. Baoxiong Jia
	Tsinghua University, China 2020.08 - 2024.07 Undergraduate Student
	Tsinghua University, China 2024.08 - now Ph.D. candidate

Thanks for your visiting by 😊.
Template stolen from Jon Barron. Page icon made by Freepik from flaticon.com .