Ryo Umagami

Ryo Umagami

3rd-year Ph.D. student at the University of Tokyo

I am currently a 3rd-year Ph.D. student at MIL, the University of Tokyo, advised by Prof. Tatsuya Harada and Lect. Yusuke Mukuta. I also received B.S. and M.S. from The University of Tokyo, advised by Prof. Tatsuya Harada and Lect. Yusuke Mukuta.

Research Interests

My research focuses on modeling human dynamics and 3D environments from multimodal data. I am particularly interested in human motion generation and prediction, feed-forward 3D/4D reconstruction, and time-series forecasting. Recently, I have been exploring the use of multimodal large language models to better understand complex human behaviors and dynamic scenes. In the long term, my goal is to build human-centered intelligent systems that can anticipate human intentions and motions, enabling robust and adaptive human–robot interaction in real-world environments.

Education

  • [2024.04 - Present] Ph.D. in Computer Science, The University of Tokyo
  • [2022.04 - 2024.03] M.S. in Computer Science, The University of Tokyo
  • [2018.04 - 2022.03] B.S. in Engineering, The University of Tokyo

Internship

Research

  • Ryo Umagami, Tomohiro Hashimoto, Xuangeng Chu, Ziteng Cui, Yusuke Mukuta, Jia Deng, Tatsuya Harada. “TripleSplat: Adaptive Triplane for Sparse-View Large-Scale Scene Reconstruction.” ECCV 2026.
  • Ryo Umagami, Liu Yue, Xuangeng Chu, Ryuto Fukushima, Tetsuya Narita, Yusuke Mukuta, Tomoyuki Takahata, Jianfei Yang, Tatsuya Harada. “Intend to Move: A Multimodal Dataset for Intention-Aware Human Motion Understanding.” NeurIPS 2025. [Project Page] [Video]
  • Shuhong Liu, et al., including Ryo Umagami and Tatsuya Harada. “RealX3D: A Physically-Degraded 3D Benchmark for Multi-view Visual Restoration and Reconstruction.” IJCV 2026. [Paper] [Project Page] [Code]
  • Shuhong Liu, et al., including Ryo Umagami and Tatsuya Harada. “NTIRE 2026 3D Restoration and Reconstruction in Real-world Adverse Conditions: RealX3D Challenge Results.” CVPR 2026 Workshop. [Paper] [Project Page] [Code]
  • Kohei Uehara, et al., including Ryo Umagami and Tatsuya Harada. “Advancing Large Multi-modal Models with Explicit Chain-of-Reasoning and Visual Question Generation.” arXiv:2401.10005, 2024. [Paper]
  • Ryo Umagami, Yu Ono, Yusuke Mukuta, Tatsuya Harada. “HiPerformer: Hierarchically Permutation-Equivariant Transformer for Time Series Forecasting.” arXiv:2305.08073, 2023. [Paper]

Misc