Jiayi Liu

I am a Ph.D. candidate at Simon Fraser University in GrUVi & 3DLG lab. I am honored to be co-supervised by Prof. Arash (Ali) Mahdavi-Amiri and Prof. Manolis Savva. Before this, I received my M.Sc. degree in computer science from University of Southern California.

A central question in my work is how to bridge visual observation, 3D geometry, functional structure, and physical interaction. Moving beyond static 3D shapes, I am especially interested in moving beyond static 3D shapes toward 3D representations that capture how objects are structured, how they move, and how they support interaction in everyday environments.

In the long term, I hope to contribute to interactive world modeling for robotics and embodied AI. I am excited by the possibility of building virtual environments where agents can learn to interact with the world through physically meaningful actions.

Publications

2026

Artiverse: A Diverse and Physically Grounded Dataset for Articulated Objects

Denys Iliash, Jiayi Liu, Egor Fokin, Qirui Wu, Ali Mahdavi-Amiri, Manolis Savva, and Angel X. Chang

In Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2026

arXiv Bib PDF Website

@inproceedings{illiash2026artiverse,
  author = {Iliash, Denys and Liu, Jiayi and Fokin, Egor and Wu, Qirui and Mahdavi-Amiri, Ali and Savva, Manolis and Chang, Angel X.},
  booktitle = {Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR)},
  title = {Artiverse: A Diverse and Physically Grounded Dataset for Articulated Objects},
  year = {2026},
  pages = {8932-8942},
}

2025

Survey on Modeling of Human-made Articulated Objects

Jiayi Liu, Manolis Savva, and Ali Mahdavi-Amiri

In Eurographics STAR (State of The Art Report), Computer Graphics Forum, 2025

arXiv Bib PDF

@inproceedings{liu2024survey,
  title = {Survey on Modeling of Human-made Articulated Objects},
  author = {Liu, Jiayi and Savva, Manolis and Mahdavi-Amiri, Ali},
  year = {2025},
  booktitle = {Eurographics STAR (State of The Art Report), Computer Graphics Forum},
}

SINGAPO: Single Image Controlled Generation of Articulated Parts in Objects

Jiayi Liu, Denys Iliash, Angel X. Chang, Manolis Savva, and Ali Mahdavi-Amiri

In Proceedings of the International Conference on Learning Representations (ICLR), 2025

arXiv Bib Code Poster Website

@inproceedings{liu2024singapo,
  title = {{SINGAPO: Single Image Controlled Generation of Articulated Parts in Objects}},
  author = {Liu, Jiayi and Iliash, Denys and Chang, Angel X. and Savva, Manolis and Mahdavi-Amiri, Ali},
  year = {2025},
  booktitle = {Proceedings of the International Conference on Learning Representations (ICLR)},
}

2024

CAGE: Controllable Articulation GEneration

Jiayi Liu, Hou In Ivan Tam, Ali Mahdavi-Amiri, and Manolis Savva

In Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2024

arXiv Bib PDF Code Website

@inproceedings{liu2024cage,
  title = {{CAGE: Controllable Articulation GEneration}},
  author = {Liu, Jiayi and Tam, Hou In Ivan and Mahdavi-Amiri, Ali and Savva, Manolis},
  year = {2024},
  booktitle = {Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR)},
}

2023

PARIS: Part-level Reconstruction and Motion Analysis for Articulated Objects

Jiayi Liu, Ali Mahdavi-Amiri, and Manolis Savva

In Proceedings of the IEEE International Conference on Computer Vision (ICCV), 2023

arXiv Bib PDF Code Website

@inproceedings{jiayi2023paris,
  title = {{PARIS}: Part-level Reconstruction and Motion Analysis for Articulated Objects},
  author = {Liu, Jiayi and Mahdavi-Amiri, Ali and Savva, Manolis},
  year = {2023},
  booktitle = {Proceedings of the IEEE International Conference on Computer Vision (ICCV)},
  pages = {352-363},
}

2022

Exemplar-based Pattern Synthesis with Implicit Periodic Field Network

Haiwei Chen, Jiayi Liu, Weikai Chen, Shichen Liu, and Yajie Zhao

In Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2022

arXiv Bib PDF Code

@inproceedings{chen2022exemplar,
  title = {Exemplar-based Pattern Synthesis with Implicit Periodic Field Network},
  author = {Chen, Haiwei and Liu, Jiayi and Chen, Weikai and Liu, Shichen and Zhao, Yajie},
  year = {2022},
  booktitle = {Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR)},
}

2021

Topologically Consistent Multi-View Face Inference Using Volumetric Sampling

Tianye Li, Shichen Liu, Timo Bolkart, Jiayi Liu, Hao Li, and Yajie Zhao

In Proceedings of the IEEE International Conference on Computer Vision (ICCV), 2021

arXiv Bib PDF Supp Code Poster Slides Website

@inproceedings{li2021tofu,
  title = {Topologically Consistent Multi-View Face Inference Using Volumetric Sampling},
  author = {Li, Tianye and Liu, Shichen and Bolkart, Timo and Liu, Jiayi and Li, Hao and Zhao, Yajie},
  year = {2021},
  booktitle = {Proceedings of the IEEE International Conference on Computer Vision (ICCV)},
}