About Me

I am a Research Scientist at Beijing Institute for General Artificial Intelligence (BIGAI). I received my Ph.D. in the Department of Statistics at the University of California, Los Angeles (UCLA). I believe the ability to comprehensively perceive the world is central to next‐step general and physical AI. Thus, my research focuses on enabling human‐like vision capabilities for machines, particularly in the areas of 3D/4D reconstruction, multi-modal scene understanding, active perception. Previously, I also interned at Perceiving Systems, MPI for Intelligent Systems, and Amazon.

News

New! 2026-02: We are organizing the 6th workshop on 3D Scene Understanding for Vision, Graphics and Robotics at CVPR 2026. Stay tuned at our workshop page!

New! 2026-02: G4Splat accepted in ICLR 2026 and three papers accepted in CVPR 2026. Big congrats to the authors!

New! 2025-12: DreamArt accepted in SigGraph Asia 2025, and SCaR3D accepted in 3DV 2026. Big congrats to Ruijie and Zirui!

2025-08: Four papers accepted in ICCV 2025, including TRACE3D, TACO, MTU3D, and GWM.

2025-06: We organized the 5th 3D Scene Understanding for Vision, Graphics and Robotics at CVPR 2025. Check out the workshop page for the details and recordings!

2025-03: Five papers accepted in CVPR 2025, including DPRecon, MOVIS, MetaScenes on 3D scene understanding, and MotionReFit, InteractAnything on human-scene interaction.

2025-02: SynergAI, aiming to address human-robot perception alignment, accepted in ICRA 2025.

2024-10: PhyRecon accepted in NeurIPS 2024. Code for reconstruction and physical simulator all released! Congrats Junfeng et al.

2024-10: LINGO accepted in SigGraph Asia 2024, which continuously pushes the boundaries of 3D human-scene interaction. Congrats Nan et al.

2024-07: Three papers accepted in ECCV 2024, including SceneVerse, PQ3D (congrats Ziyu et al.) on 3D VL, and SlotLifter (congrats Yu et al.) on object-centric learning.

2024-03: Two papers, TRUMANS and Afford-Motion , about 3D human motion and HSI accepted in CVPR 2024. Congrats Nan et al. and Zan et al.!

2023-06: We organize the 4th 3D Scene Understanding for Vision, Graphics and Robotics at CVPR 2023. Check out the workshop page!

Publication

G4Splat: Geometry-Guided Gaussian Splatting with Generative Prior
Junfeng Ni, Yixin Chen^†, Zhifei Yang, Yu Liu, Ruijie Lu, Song-Chun Zhu, Siyuan Huang^†
The Fourteenth International Conference on Learning Representations (ICLR) 2026
Paper / Project / Code

3D Scene Change Modeling with Consistent Multi-View Aggregation
Zirui Zhou, Junfeng Ni, Shujie Zhang, Yixin Chen^†, Siyuan Huang^†
International Conference on 3D Vision (3DV) 2026
Paper / Project / Code

DreamArt: Generating Interactable Articulated Objects from a Single Image
Ruijie Lu, Yu Liu, Jiaxiang Tang, Junfeng Ni, Yuxiang Wang, Diwen Wan, Gang Zeng^†, Yixin Chen^†, Siyuan Huang^†
SigGraph Asia 2025
Paper / Project

Trace3D: Consistent Segmentation Lifting via Gaussian Instance Tracing
Hongyu Shen*, Junfeng Ni*, Yixin Chen^†, Weishuo Li, Mingtao Pei^†, Siyuan Huang^†
The IEEE International Conference on Computer Vision (ICCV) 2025
Paper / Project / Code

TACO: Taming Diffusion for in-the-wild Video Amodal Completion
Ruijie Lu, Yixin Chen^†, Yu Liu, Jiaxiang Tang, Junfeng Ni, Diwen Wan, Gang Zeng^†, Siyuan Huang^†
The IEEE International Conference on Computer Vision (ICCV) 2025
Paper / Project / Code / Data

Move to Understand a 3D Scene: Bridging Visual Grounding and Exploration for Efficient and Versatile Embodied Navigation
Ziyu Zhu, Xilin Wang, Yixuan Li, Zhuofan Zhang, Xiaojian Ma, Yixin Chen, Baoxiong Jia, Wei Liang, Qian Yu, Zhidong Deng, Siyuan Huang, Qing Li
The IEEE International Conference on Computer Vision (ICCV) 2025
Project / Code

GWM: Towards Scalable Gaussian World Models for Robotic Manipulation
Guanxing Lu, Baoxiong Jia, Puhao Li, Yixin Chen, Ziwei Wang, Yansong Tang, Siyuan Huang
The IEEE International Conference on Computer Vision (ICCV) 2025
Paper

Decompositional Neural Scene Reconstruction with Generative Diffusion Prior
Junfeng Ni, Yu Liu, Ruijie Lu, Zirui Zhou, Song-Chun Zhu, Yixin Chen^†, Siyuan Huang^†
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2025
Paper / Project / Code

MOVIS: Enhancing Multi-Object Novel View Synthesis for Indoor Scenes
Ruijie Lu*, Yixin Chen*^†, Junfeng Ni, Baoxiong Jia, Yu Liu, Diwen Wan, Gang Zeng, Siyuan Huang^†
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2025
Paper / Project / Code

MetaScenes: Towards Automated Replica Creation for Real-world 3D Scans
Huangyue Yu^*, Baoxiong Jia^*, Yixin Chen^*, Yandan Yang, Puhao Li, Rongpeng Su, Jiaxin Li, Qing Li,
Wei Liang, Song-Chun Zhu, Tengyu Liu, Siyuan Huang
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2025
Project / Code

Dynamic Motion Blending for Versatile Motion Editing
Nan Jiang^*, Hongjie Li*, Ziye Yuan*, Zimo He, Yixin Chen, Tengyu Liu, Yixin Zhu, Siyuan Huang
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2025
Paper / Project / Code

InteractAnything: Zero-shot Human Object Interaction Synthesis via LLM Feedback and Object Affordance Parsing
Jinlu Zhang, Yixin Chen^†, Zan Wang, Jie Yang, Yizhou Wang^†, Siyuan Huang^†
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2025
Project

SYNERGAI: Perception Alignment for Human-Robot Collaboration
Yixin Chen^*, Guoxi Zhang^*, Yaowei Zhang^*, Hongming Xu^*, Peiyuan Zhi, Qing Li, Siyuan Huang
International Conference on Robotics and Automation (ICRA) 2025
Paper / Project

PhyRecon: Physically Plausible Neural Scene Reconstruction
Junfeng Ni^*, Yixin Chen^*, Bohan Jing, Nan Jiang, Bin Wang, Bo Dai, Puhao Li, Yixin Zhu, Song-Chun Zhu, Siyuan Huang
Neural Information Processing Systems (NeurIPS) 2024
Paper / Project / Code / Simulator

Autonomous Character-Scene Interaction Synthesis from Text Instruction
Nan Jiang^*, Zimo He^*, Zi Wang, Hongjie Li, Yixin Chen, Siyuan Huang, Yixin Zhu
SigGraph Asia 2024
Paper / Project

SceneVerse: Scaling 3D Vision-Language Learning for Grounded Scene Understanding
Baoxiong Jia^*, Yixin Chen^*, Huangyue Yu, Yan Wang, Xuesong Niu, Tengyu Liu, Qing Li, Siyuan Huang
European Conference on Computer Vision (ECCV) 2024
Paper / Project / Code

Unifying 3D Vision-Language Understanding via Promptable Queries
Ziyu Zhu, Zhuofan Zhang, Xiaojian Ma, Xuesong Niu, Yixin Chen, Baoxiong Jia, Zhidong Deng, Siyuan Huang, Qing Li
European Conference on Computer Vision (ECCV) 2024
Paper / Project / Code

SlotLifter: Slot-guided Feature Lifting for Learning Object-centric Radiance Fields
Yu Liu, Baoxiong Jia, Yixin Chen, Siyuan Huang
European Conference on Computer Vision (ECCV) 2024
Paper / Project

Scaling Up Dynamic Human-Scene Interaction Modeling
Nan Jiang^*, Zhiyuan Zhang^*, Hongjie Li, Xiaoxuan Ma, Zan Wang, Yixin Chen, Tengyu Liu, Yixin Zhu, Siyuan Huang
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2024 (Highlight)
Paper / Project / Code / Live Demo

Move as You Say, Interact as You Can: Language-guided Human Motion Generation with Scene Affordance
Zan Wang, Yixin Chen, Baoxiong Jia, Puhao Li, Jinlu Zhang, Jingze Zhang, Tengyu Liu, Yixin Zhu, Wei Liang, Siyuan Huang
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2024 (Highlight)
Paper / Project / Code

Single-view 3D Scene Reconstruction with High-fidelity Shape and Texture
Yixin Chen^*, Junfeng Ni^*, Nan Jiang, Yaowei Zhang, Yixin Zhu, Siyuan Huang
International Conference on 3D Vision (3DV) 2024
Paper / Project / Code

Full-Body Articulated Human-Object Interaction
Nan Jiang^*, Tengyu Liu^*, Zhexuan Cao, Jieming Cui, Zhiyuan Zhang, Yixin Chen, He Wang, Yixin Zhu, Siyuan Huang
The IEEE International Conference on Computer Vision (ICCV) 2023
Paper / Project / Code

3D-VISTA: Pre-trained Transformer for 3D Vision and Text Alignment
Ziyu Zhu, Xiaojian Ma, Yixin Chen, Zhidong Deng, Siyuan Huang, Qing Li
The IEEE International Conference on Computer Vision (ICCV) 2023
Paper / Project / Code

Detecting Human-Object Contact in Images
Yixin Chen, Sai Kumar Dwivedi, Michael J. Black, Dimitrios Tzionas
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2023
Paper / Project / Code

HUMANISE: Language-conditioned Human Motion Generation in 3D Scenes
Zan Wang, Yixin Chen, Tengyu Liu, Yixin Zhu, Wei Liang, Siyuan Huang
Neural Information Processing Systems (NeurIPS) 2022
Paper / Project / Code

PartAfford: Part-level Affordance Discovery from 3D Objects
Chao Xu, Yixin Chen, He Wang, Song-Chun Zhu, Yixin Zhu, Siyuan Huang
ECCV 2022 VOLI Workshop
Paper

YouRefIt: Embodied Reference Understanding with Language and Gesture
Yixin Chen, Qing Li, Deqian Kong, Yik Lun Kei, Tao Gao, Yixin Zhu, Song-Chun Zhu, Siyuan Huang
The IEEE International Conference on Computer Vision (ICCV) 2021 (Oral)
Paper / Project / Code

Top-down Attention in End-to-end Spoken Language Understanding
Yixin Chen^*, Weiyi Lu, Alejandro Mottini, Li Erran Li, Jasha Droppo, Zheng Du, Belinda Zeng
* Work performed while interning at Amazon, supervised by Li Erran Li
The International Conference on Acoustics, Speech, & Signal Processing (ICASSP) 2021
Paper

LEMMA: A Multi-view Dataset for Learning Multi-agent Multi-task Activities
Baoxiong Jia, Yixin Chen, Siyuan Huang, Yixin Zhu, Song-Chun Zhu
European Conference on Computer Vision (ECCV) 2020
Paper / Project / Code

Closed Loop Neural-Symbolic Learning via Integrating Neural Perception, Grammar Parsing, and Symbolic Reasoning
Qing Li, Siyuan Huang, Yining Hong, Yixin Chen, Yingnian Wu, Song-Chun Zhu
International Conference on Machine Learning (ICML) 2020
Best Paper Award in Workshop on Bridge Between Perception and Reasoning
Paper / Supplementary / Project / Code / Bibtex

3D Object Detection from a Single RGB Image via Perspective Points
Siyuan Huang, Yixin Chen, Tao Yuan, Siyuan Qi, Yixin Zhu, Song-Chun Zhu
Neural Information Processing Systems (NeurIPS) 2019
Paper

Holistic⁺⁺ Scene Understanding: Single-view 3D Holistic Scene Parsing and Human Pose Estimation
Yixin Chen^*, Siyuan Huang^*, Tao Yuan, Siyuan Qi, Yixin Zhu, Song-Chun Zhu
The IEEE International Conference on Computer Vision (ICCV) 2019
Paper / Supplementary / Project / Code / Bibtex

Inferring Shared Attention in Social Scene Videos
Lifeng Fan *, Yixin Chen *, Ping Wei, Wenguan Wang, Song-Chun Zhu
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2018
Paper / Project / Bibtex