About · Ryosei Hara

I am a first-year Ph.D. student at Keio University, studying in the Isogawa Lab. I major in Computer Vision and Deep Learning. I received my Bachelor’s degree in Engineering from Keio University in 2025 and my Master’s degree in Engineering from Keio University in 2026, both under the supervision of Assoc. Prof. Mariko Isogawa.

Research Interests

Hand-related topics (e.g., hand pose estimation, hand-object interaction)
Egocentric vision
Event-based vision

News

2026-09 Entered the Doctoral Program in the School of Informatics, Management, and Human Sciences, Graduate School of Science and Technology, Keio University 🎓

2026-09 Graduated from Keio University, Master of Engineering 🎓

2026-09 Our paper accepted at IEEE Access 🎉

2026-04 Our paper accepted at ICIP 2026 🎉

2026-02 Our paper accepted at CVPR 2026 🎉

Selected Publications

2026

Journal

EventEgoHands++: Event-based Egocentric 3D Hand Mesh Reconstruction with Real Dataset

Hara, Ryosei and Ikeda, Wataru and Hatano, Masashi and Isogawa, Mariko

IEEE Access, 2026

Project Code arXiv

@article{hara2026eventegohands2,
  author = {Hara, Ryosei and Ikeda, Wataru and Hatano, Masashi and Isogawa, Mariko},
  journal = {IEEE Access},
  title = {EventEgoHands++: Event-based Egocentric 3D Hand Mesh Reconstruction with Real Dataset},
  year = {2026},
  volume = {},
  number = {},
}

Conference CVPR 2026
Ghost-FWL: A Large-Scale Full-Waveform LiDAR Dataset for Ghost Detection and Removal

Ikeda*, Kazuma and Hara*, Ryosei and Nagata, Rokuto and Sako, Ozora and Ding, Zihao and Kado, Takahiro and Fujioka, Ibuki and Beppu, Taro and Isogawa, Mariko and Yoshioka, Kentaro

IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2026

(Top Conference in Computer Vision, h5-index=450, Acceptance Rate: 25.42%)
^* Equal contribution

Project Paper Supp Code arXiv Video
@inproceedings{ikeda2026ghostfwl, title = {Ghost-FWL: A Large-Scale Full-Waveform LiDAR Dataset for Ghost Detection and Removal}, author = {Ikeda*, Kazuma and Hara*, Ryosei and Nagata, Rokuto and Sako, Ozora and Ding, Zihao and Kado, Takahiro and Fujioka, Ibuki and Beppu, Taro and Isogawa, Mariko and Yoshioka, Kentaro}, booktitle = {IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)}, year = {2026}, pages = {17164-17173}, }

Preprint

Hand Visibility Detector: Per-Keypoint Visibility Estimation for Hands

Hara, Ryosei and Hatano, Masashi and Yanagi, Rintaro and Hashimoto, Atsushi and Yagi, Takuma and Isogawa, Mariko

2026

Code arXiv Demo

@misc{hara2026handvisibilitydetector,
  title = {Hand Visibility Detector: Per-Keypoint Visibility Estimation for Hands},
  author = {Hara, Ryosei and Hatano, Masashi and Yanagi, Rintaro and Hashimoto, Atsushi and Yagi, Takuma and Isogawa, Mariko},
  year = {2026},
  eprint = {2608.11574},
  archiveprefix = {arXiv},
  primaryclass = {cs.CV},
  url = {https://arxiv.org/abs/2608.11574},
}