activity
20232026
most citedBenchmarks and Challenges in Pose Estimation for Egocentric Hand Interactions with Objects

2 citations · 4 across the 10 of their papers we have counts for

collaborators

12 papers

cs.RO2026

SiMDex: Mining Similar Egocentric Videos for Cross-Embodiment Dexterous Manipulation

Nie Lin, Takehiko Ohkawa, Sijin Chen +10

Recent years have witnessed an explosive trend of scaling ego-centric human videos for robot manipulation, yet it remains unclear which data actually benefits dexterous manipulatio…

cs.CV2026

SocialDirector: Training-Free Social Interaction Control for Multi-Person Video Generation

Liangyang Ouyang, Ruicong Liu, Caixin Kang +2

Video generation has advanced rapidly, producing photorealistic videos from text or image prompts. Meanwhile, film production and social robotics increasingly demand multi-person v…

cs.CV2025

Affordance-Guided Diffusion Prior for 3D Hand Reconstruction

Naru Suzuki, Takehiko Ohkawa, Tatsuro Banno +3

How can we reconstruct 3D hand poses when large portions of the hand are heavily occluded by itself or by objects? Humans often resolve such ambiguities by leveraging contextual kn…

cs.CV2025

AssemblyHands-X: Modeling 3D Hand-Body Coordination for Understanding Bimanual Human Activities

Tatsuro Banno, Takehiko Ohkawa, Ruicong Liu +2

Bimanual human activities inherently involve coordinated movements of both hands and body. However, the impact of this coordination in activity understanding has not been systemati…

cs.CV2025

Generative Modeling of Shape-Dependent Self-Contact Human Poses

Takehiko Ohkawa, Jihyun Lee, Shunsuke Saito +7

One can hardly model self-contact of human poses without considering underlying body shapes. For example, the pose of rubbing a belly for a person with a low BMI leads to penetrati…

cs.CV2025

Leveraging RGB Images for Pre-Training of Event-Based Hand Pose Estimation

Ruicong Liu, Takehiko Ohkawa, Tze Ho Elden Tse +3

This paper presents RPEP, the first pre-training method for event-based 3D hand pose estimation using labeled RGB images and unpaired, unlabeled event data. Event data offer signif…

cs.CV2025

SiMHand: Mining Similar Hands for Large-Scale 3D Hand Pose Pre-training

Nie Lin, Takehiko Ohkawa, Yifei Huang +5

We present a framework for pre-training of 3D hand pose estimation from in-the-wild hand images sharing with similar hand characteristics, dubbed SimHand. Pre-training with large-s…

cs.CV2024★ 1 cited

Pre-Training for 3D Hand Pose Estimation with Contrastive Learning on Large-Scale Hand Images in the Wild

Nie Lin, Takehiko Ohkawa, Mingfang Zhang +3

We present a contrastive learning framework based on in-the-wild hand images tailored for pre-training 3D hand pose estimators, dubbed HandCLR. Pre-training on large-scale images a…

cs.CV2024

Masked Video and Body-worn IMU Autoencoder for Egocentric Action Recognition

Mingfang Zhang, Yifei Huang, Ruicong Liu +1

Compared with visual signals, Inertial Measurement Units (IMUs) placed on human limbs can capture accurate motion signals while being robust to lighting variation and occlusion. Wh…

cs.CV2024★ 1 cited

Single-to-Dual-View Adaptation for Egocentric 3D Hand Pose Estimation

Ruicong Liu, Takehiko Ohkawa, Mingfang Zhang +1

The pursuit of accurate 3D hand pose estimation stands as a keystone for understanding human activity in the realm of egocentric vision. The majority of existing estimation methods…

cs.CV2024★ 2 cited

Benchmarks and Challenges in Pose Estimation for Egocentric Hand Interactions with Objects

Zicong Fan, Takehiko Ohkawa, Linlin Yang +21

We interact with the world with our hands and see it through our own (egocentric) perspective. A holistic 3Dunderstanding of such interactions from egocentric views is important fo…

cs.CV2023

Generative Hierarchical Temporal Transformer for Hand Pose and Action Modeling

Yilin Wen, Hao Pan, Takehiko Ohkawa +5

We present a novel unified framework that concurrently tackles recognition and future prediction for human hand pose and action modeling. Previous works generally provide isolated…