Publications

2026

1. Large-scale Codec Avatars: The Unreasonable Effectiveness of Large-scale Avatar Pretraining

   Junxuan Li, Rawal Khirodkar, Chengan He, Zhongshi Jiang, Giljoo Nam, Lingchen Yang, Jihyun Lee, Egor Zakharov, Zhaoen Su, Rinat Abdrashitov, Yuan Dong, Julieta Martinez , Kai Li, Qingyang Tan, Takaaki Shiratori, Matthew Hu, Peihong Guo, Xuhua Huang, Ariyan Zarei, Marco Pesavento , Yichen Xu, He Wen, Teng Deng, Wyatt Borsos, Anjali Thakrar, Jean-Charles Bazin, Carsten Stoll, Ginés Hidalgo, James Booth , Lucy Wang , Xiaowen Ma, Yu Rong, Sairanjith Thalanki, Chen Cao, Christian Häne, Abhishek Kar, Sofien Bouaziz, Jason Saragih, Yaser Sheikh, and Shunsuke Saito

   In IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2026

   arXiv Bib Website

   @inproceedings{li2026largescalecodecavatars,
     title = {Large-scale Codec Avatars: The Unreasonable Effectiveness of Large-scale Avatar Pretraining},
     author = {Li, Junxuan and Khirodkar, Rawal and He, Chengan and Jiang, Zhongshi and Nam, Giljoo and Yang, Lingchen and Lee, Jihyun and Zakharov, Egor and Su, Zhaoen and Abdrashitov, Rinat and Dong, Yuan and Martinez, Julieta and Li, Kai and Tan, Qingyang and Shiratori, Takaaki and Hu, Matthew and Guo, Peihong and Huang, Xuhua and Zarei, Ariyan and Pesavento, Marco and Xu, Yichen and Wen, He and Deng, Teng and Borsos, Wyatt and Thakrar, Anjali and Bazin, Jean-Charles and Stoll, Carsten and Hidalgo, Ginés and Booth, James and Wang, Lucy and Ma, Xiaowen and Rong, Yu and Thalanki, Sairanjith and Cao, Chen and H{\"a}ne, Christian and Kar, Abhishek and Bouaziz, Sofien and Saragih, Jason and Sheikh, Yaser and Saito, Shunsuke},
     booktitle = {IEEE/CVF Conference on Computer Vision and Pattern Recognition},
     year = {2026},
     organization = {IEEE},
   }

2025

1. 

   FactorPortrait: Controllable Portrait Animation via Disentangled Expression, Pose, and Viewpoint

   Jiapeng Tang , Kai Li, Chengxiang Yin, Liuhao Ge , Fei Jiang, Jiu Xu, Matthias Nießner, Christian Häne, Timur Bagautdinov, Egor Zakharov, and Peihong Guo

   arXiv preprint, 2025

   arXiv Bib Website

   @article{tang2025factorportrait,
     title = {FactorPortrait: Controllable Portrait Animation via Disentangled Expression, Pose, and Viewpoint},
     author = {Tang, Jiapeng and Li, Kai and Yin, Chengxiang and Ge, Liuhao and Jiang, Fei and Xu, Jiu and Nießner, Matthias and H{\"a}ne, Christian and Bagautdinov, Timur and Zakharov, Egor and Guo, Peihong},
     journal = {arXiv preprint},
     year = {2025},
   }

2. 

   Repurposing 2D Diffusion Models with Gaussian Atlas for 3D Generation

   Tiange Xiang , Kai Li, Chengjiang Long, Christian Häne, Peihong Guo, Scott Delp, Ehsan Adeli, and Li Fei-Fei

   In International Conference on Computer Vision, 2025

   arXiv Bib Website

   @inproceedings{xiang2025gaussian,
     title = {Repurposing 2D Diffusion Models with Gaussian Atlas for 3D Generation},
     author = {Xiang, Tiange and Li, Kai and Long, Chengjiang and H{\"a}ne, Christian and Guo, Peihong and Delp, Scott and Adeli, Ehsan and Fei-Fei, Li},
     booktitle = {International Conference on Computer Vision},
     year = {2025},
     organization = {IEEE},
   }

2024

1. 

   Rethinking Video-Text Understanding: Retrieval from Counterfactually Augmented Data

   Wufei Ma , Kai Li, Zhongshi Jiang, Moustafa Meshry, Qihao Liu, Huiyu Wang, Christian Häne, and Alan Yuille

   In European Conference on Computer Vision, 2024

   arXiv Bib Code Website

   @inproceedings{ma2024rethinking,
     title = {Rethinking Video-Text Understanding: Retrieval from Counterfactually Augmented Data},
     author = {Ma, Wufei and Li, Kai and Jiang, Zhongshi and Meshry, Moustafa and Liu, Qihao and Wang, Huiyu and H{\"a}ne, Christian and Yuille, Alan},
     booktitle = {European Conference on Computer Vision},
     year = {2024},
     organization = {Springer},
   }

2022

1. 

   SSDNeRF: Semantic Soft Decomposition of Neural Radiance Fields

   Siddhant Ranade, Christoph Lassner , Kai Li, Christian Häne, Shen-Chi Chen, Jean-Charles Bazin, and Sofien Bouaziz

   arXiv preprint, 2022

   arXiv Bib

   @article{ranade2022ssdnerf,
     title = {SSDNeRF: Semantic Soft Decomposition of Neural Radiance Fields},
     author = {Ranade, Siddhant and Lassner, Christoph and Li, Kai and H{\"a}ne, Christian and Chen, Shen-Chi and Bazin, Jean-Charles and Bouaziz, Sofien},
     journal = {arXiv preprint},
     year = {2022},
   }