Heng Wang
Heng Wang is a computer vision researcher whose work on video understanding runs from hand-crafted motion features to world models. After a PhD in computer vision at the Chinese Academy of Sciences, he presented the dense trajectory feature in a CVPR paper in 2011 and improved it in 2013 as a postdoc in the LEAR team at INRIA, working with Cordelia Schmid. In November 2014, he joined Amazon in Seattle as an early member of the Amazon Go team; at Facebook AI Research, he coauthored the R(2+1)D network in 2017 and the TimeSformer video transformer in 2021. He received the Helmholtz Prize at ICCV 2023 and worked at Nvidia on the Cosmos world models released in January 2025. Today he is a research scientist at Tencent, focused on world models.
- Now at
- Tencent
Timeline
-
2011
Dense trajectories for video
He earns a B.S. in electrical engineering at Harbin Institute of Technology and a PhD in computer vision from the Chinese Academy of Sciences. In 2011, he presents the dense trajectory feature in a CVPR paper.
-
2013
Improved trajectories at INRIA
As a postdoc in the LEAR team at INRIA, working with Cordelia Schmid, he coauthors “Action Recognition with Improved Trajectories” with Schmid at ICCV 2013. The method estimates camera motion from SURF matches and dense optical flow with RANSAC, then removes it to improve action recognition on Hollywood2, HMDB51, Olympic Sports and UCF50.
-
November 2014
Amazon Go in Seattle
He becomes a research scientist at Amazon in Seattle in November 2014. He is an early member of the Amazon Go team, which builds a computer vision system to replace human cashiers in retail.
-
2017
The R(2+1)D network
In 2017, he coauthors “A Closer Look at Spatiotemporal Convolutions for Action Recognition” with Du Tran, Lorenzo Torresani, Jamie Ray, Yann LeCun and Manohar Paluri. The paper factorizes 3D convolutions into separate spatial and temporal parts, leading to the R(2+1)D block. He works as a research scientist at Facebook AI Research.
-
2021
TimeSformer and PyTorchVideo
With Gedas Bertasius and Lorenzo Torresani, he coauthors TimeSformer in 2021, a convolution-free video classifier built on self-attention over space and time and accepted to ICML 2021. PyTorchVideo, an open-source PyTorch library for video understanding that he coauthors, appears in 2021.
-
2023
A Helmholtz Prize
He receives the Helmholtz Prize, a test-of-time award, at ICCV 2023. In September 2023, he coauthors a paper on his team's winning DataComp challenge entry, a three-stage data-filtering strategy for pre-training foundation models.
-
January 2025
Cosmos world models at Nvidia
As a research scientist at Nvidia, he works on the Cosmos world models, released at CES in 2025. In January 2025, he coauthors the Cosmos World Foundation Model Platform for Physical AI paper, which presents a video curation pipeline, pre-trained world foundation models and video tokenizers.
-
As of October 2026
Research scientist at Tencent
He is a research scientist at Tencent, with interests from visual understanding to generation and a recent focus on world models. Before Tencent, he works as a research lead at TikTok/ByteDance building Seed foundation models.
Career
- NowTencentResearch Scientist
- From 2025NVIDIAResearch Scientist
- From 2017FAIR (Meta)Research Scientist
- From 2014AmazonResearch Scientist
- From 2013InriaPostdoctoral Researcher
- ByteDanceResearch Lead
Education
Sources and credits
Photo: We have no published photo of Heng Wang yet. Send us a free-licensed photo.
- About Me - Heng Wang’s Homepage
- THOTH - Heng Wang
- Action Recognition with Improved Trajectories - ICCV 2013 Open Access Repository
- [1711.11248] A Closer Look at Spatiotemporal Convolutions for Action Recognition
- [2102.05095] Is Space-Time Attention All You Need for Video Understanding?
- [2111.09887] PyTorchVideo: A Deep Learning Library for Video Understanding
- [2309.15954] The Devil is in the Details: A Deep Dive into the Rabbit Hole of Data Filtering
- [2501.03575] Cosmos World Foundation Model Platform for Physical AI



