Jiefeng Li
Also known as 李杰锋
Jiefeng Li is a computer vision researcher who builds models of human pose and motion, and he is a senior research scientist in the Data-Driven AI for Robotics (DAIR) team at NVIDIA Research. At Shanghai Jiao Tong University, he earned a bachelor's degree in electronic engineering in 2018 and a master's in computer science in 2020, then completed a PhD in 2024 in Cewu Lu's MVIG lab. His SJTU work included the CrowdPose benchmark for crowded scenes in 2019 and HybrIK, a 2021 inverse-kinematics method for recovering 3D body meshes, and he helped maintain the AlphaPose pose-tracking system. In May 2025, he posted GENMO, a single model that both estimates and generates human motion, and it appeared at ICCV in October 2025. He also coauthored SONIC, a humanoid whole-body controller that Science Robotics published in July 2026.
Timeline
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2014–2020
Two degrees at SJTU
He studies electronic engineering at Shanghai Jiao Tong University from 2014 and earns his bachelor's degree in 2018. His master's degree in computer science, also from SJTU, follows in 2020.
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2018–2019
Pose Flow and CrowdPose
He coauthors Pose Flow, an efficient online pose-tracking method, with Yuliang Xiu and Cewu Lu at BMVC 2018. At CVPR 2019, he is first author of CrowdPose, a pose-estimation method and benchmark for crowded scenes.
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2021
HybrIK and residual log-likelihood estimation
At CVPR 2021, he presents HybrIK, a hybrid analytical-neural inverse kinematics method that turns 3D joints into body-part rotations to rebuild a 3D body mesh. His Residual Log-likelihood Estimation paper, an ICCV 2021 oral, lets a regression method outperform heatmap-based methods on multi-person pose estimation for the first time. In September 2021, he gives a talk at the Max Planck Institute for Intelligent Systems.
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2022
The AlphaPose system
He coauthors the 2022 IEEE Transactions on Pattern Analysis and Machine Intelligence paper on AlphaPose, the MVIG-SJTU system for real-time whole-body multi-person pose estimation and tracking. He is also one of the system's maintainers.
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2024
A PhD in the MVIG lab
He receives his PhD in 2024 from the Department of Computer Science at SJTU, where he is a member of the MVIG lab supervised by Cewu Lu.
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2025
GENMO, a generalist motion model
As a research scientist in NVIDIA Research's DAIR team, he is first author of GENMO, posted in May 2025, which unifies human motion estimation and generation in one model. The paper appears at the IEEE International Conference on Computer Vision in October 2025.
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2026
SONIC in Science Robotics
In March 2026, he coauthors two DAIR preprints: Kimodo, on scaling controllable human motion generation, and SOMA, which unifies parametric human body models. SONIC, a foundation model for humanoid whole-body control trained on 700 hours of motion capture, appears in Science Robotics in July 2026 with him as a coauthor.
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As of October 2026
Senior research scientist at NVIDIA
He is a senior research scientist in the Data-Driven AI for Robotics (DAIR) team at NVIDIA Research. His research covers human motion, human-object interaction, humanoids and embodied AI.
Career
- Since 2026NVIDIAResearch Scientist
- Until 2024Shanghai Jiao Tong UniversityMember
Education
- 2024Shanghai Jiao Tong UniversityPhD
- 2020Shanghai Jiao Tong UniversityMaster's degree
- 2018Shanghai Jiao Tong UniversityBachelor's degree
Sources and credits
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- Jiefeng Li | Research
- Jiefeng Li | DAIR @ NVIDIA Research
- GitHub - MVIG-SJTU/AlphaPose: Real-Time and Accurate Full-Body Multi-Person Pose Estimation&Tracking System
- CVPR 2019 Open Access Repository: CrowdPose: Efficient Crowded Scenes Pose Estimation and a New Benchmark
- [2011.14672] HybrIK: A Hybrid Analytical-Neural Inverse Kinematics Solution for 3D Human Pose and Shape Estimation
- [2107.11291] Human Pose Regression with Residual Log-likelihood Estimation
- Jiefeng Li
- [2211.03375] AlphaPose: Whole-Body Regional Multi-Person Pose Estimation and Tracking in Real-Time
- [2505.01425] GENMO: A GENeralist Model for Human MOtion
- GENMO: A GENeralist Model for Human MOtion | DAIR @ NVIDIA Research
- Kimodo: Scaling Controllable Human Motion Generation | DAIR @ NVIDIA Research
- SOMA: Unifying Parametric Human Body Models | DAIR @ NVIDIA Research
- SONIC: Supersizing Motion Tracking for Natural Humanoid Whole-Body Control | DAIR @ NVIDIA Research
- [2511.07820] SONIC: Supersizing Motion Tracking for Natural Humanoid Whole-Body Control
