H+O: Unified Egocentric Recognition of 3D Hand-Object Poses and Interactions
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Abstract (arXiv)
We present a unified framework for understanding 3D hand and object interactions in raw image sequences from egocentric RGB cameras. Given a single RGB image, our model jointly estimates the 3D hand and object poses, models their interactions, and recognizes the object and action classes with a single feed-forward pass through a neural network. We propose a single architecture that does not rely on external detection algorithms but rather is trained end-to-end on single images. We further merge and propagate information in the temporal domain to infer interactions between hand and object trajectories and recognize actions. The complete model takes as input a sequence of frames and outputs per-frame 3D hand and object pose predictions along with the estimates of object and action categories for the entire sequence. We demonstrate state-of-the-art performance of our algorithm even in comparison to the approaches that work on depth data and ground-truth annotations.
Key facts. Cited by 139 papers in the map (data through 7 Oct 2026). First posted on arXiv 10 Apr 2019.
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Citing papers per year: 2021: 32; 2022: 24; 2023: 34; 2024: 23; 2025: 15; 2026: 11.
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- 2021DexYCB: A Benchmark for Capturing Hand Grasping of Objectscited by 320
- 2022ARCTIC: A Dataset for Dexterous Bimanual Hand-Object Manipulationcited by 306
- 2021H2O: Two Hands Manipulating Objects for First Person Interaction Recognitioncited by 251
- 2021Hand-Object Contact Consistency Reasoning for Human Grasps Generationcited by 160
- 2021Towards Long-Form Video Understandingcited by 146
- 2021Semi-Supervised 3D Hand-Object Poses Estimation with Interactions in Timecited by 140
- 2021ContactOpt: Optimizing Contact to Improve Graspscited by 137
- 2021Collaborative Regression of Expressive Bodies using Moderationcited by 137
- 2022OakInk: A Large-scale Knowledge Repository for Understanding Hand-Object Interactioncited by 129
- 2021Keypoint Transformer: Solving Joint Identification in Challenging Hands and Object Interactions for Accurate 3D Pose Estimationcited by 122
- 2023Affordance Diffusion: Synthesizing Hand-Object Interactionscited by 110
- 2021D-Grasp: Physically Plausible Dynamic Grasp Synthesis for Hand-Object Interactionscited by 109
38 more
- 2022Recovering 3D Human Mesh from Monocular Images: A Surveycited by 103
- 2021Ego-Exo: Transferring Visual Representations from Third-person to First-person Videoscited by 98
- 2022What's in your hands? 3D Reconstruction of Generic Objects in Handscited by 90
- 2023An Outlook into the Future of Egocentric Visioncited by 84
- 2022Fine-Grained Egocentric Hand-Object Segmentation: Dataset, Model, and Applicationscited by 78
- 2021ArtiBoost: Boosting Articulated 3D Hand-Object Pose Estimation via Online Exploration and Synthesiscited by 76
- 2023HOLD: Category-agnostic 3D Reconstruction of Interacting Hands and Objects from Videocited by 76
- 2023Diffusion-Guided Reconstruction of Everyday Hand-Object Interaction Clipscited by 73
- 2024GraspXL: Generating Grasping Motions for Diverse Objects at Scalecited by 59
- 2022AlignSDF: Pose-Aligned Signed Distance Fields for Hand-Object Reconstructioncited by 58
- 2021Towards unconstrained joint hand-object reconstruction from RGB videoscited by 57
- 2025ManipTrans: Efficient Dexterous Bimanual Manipulation Transfer via Residual Learningcited by 56
- 2022Collaborative Learning for Hand and Object Reconstruction with Attention-guided Graph Convolutioncited by 54
- 2023CAMS: CAnonicalized Manipulation Spaces for Category-Level Functional Hand-Object Manipulation Synthesiscited by 54
- 2023ArtiGrasp: Physically Plausible Synthesis of Bi-Manual Dexterous Grasping and Articulationcited by 53
- 2023ContactGen: Generative Contact Modeling for Grasp Generationcited by 52
- 2021Human Hands as Probes for Interactive Object Understandingcited by 51
- 2021A Skeleton-Driven Neural Occupancy Representation for Articulated Handscited by 50
- 2021Recent Advances in Monocular 2D and 3D Human Pose Estimation: A Deep Learning Perspectivecited by 49
- 2023gSDF: Geometry-Driven Signed Distance Functions for 3D Hand-Object Reconstructioncited by 49
- 2021Forecasting Action through Contact Representations from First Person Videocited by 46
- 2021Towards Accurate Alignment in Real-time 3D Hand-Mesh Reconstructioncited by 44
- 2024G-HOP: Generative Hand-Object Prior for Interaction Reconstruction and Grasp Synthesiscited by 43
- 2021Learning to Disambiguate Strongly Interacting Hands via Probabilistic Per-pixel Part Segmentationcited by 40
- 2021Trear: Transformer-based RGB-D Egocentric Action Recognitioncited by 39
- 2023Incorporating Structured Representations into Pretrained Vision & Language Models Using Scene Graphscited by 39
- 2024Hand-Object Interaction Pretraining from Videoscited by 38
- 2021Predicting the Future from First Person (Egocentric) Vision: A Surveycited by 36
- 2022Hierarchical Temporal Transformer for 3D Hand Pose Estimation and Action Recognition from Egocentric RGB Videoscited by 35
- 2024Benchmarks and Challenges in Pose Estimation for Egocentric Hand Interactions with Objectscited by 35
- 2023Uncertainty-aware State Space Transformer for Egocentric 3D Hand Trajectory Forecastingcited by 33
- 2024EasyHOI: Unleashing the Power of Large Models for Reconstructing Hand-Object Interactions in the Wildcited by 33
- 2022HARP: Personalized Hand Reconstruction from a Monocular RGB Videocited by 28
- 2022Interaction Replica: Tracking Human-Object Interaction and Scene Changes From Human Motioncited by 27
- 2021RGB2Hands: Real-Time Tracking of 3D Hand Interactions from Monocular RGB Videocited by 23
- 2023Interactive Spatiotemporal Token Attention Network for Skeleton-based General Interactive Action Recognitioncited by 23
- 2023HMP: Hand Motion Priors for Pose and Shape Estimation from Videocited by 23
- 2024Reconstructing Hand-Held Objects in 3D from Images and Videoscited by 23
50 most cited of 139 All 139 (JSON)
- 2026Functional Hand Type Prior for 3D Hand Pose Estimation and Action Recognition from Egocentric View Monocular Videos28 Sep 2026
- 2026De-biasing Skeleton-based Action Recognition with Convex Hull Adaptive Shift26 Sep 2026
- 2026Hand-Object Interaction in the Age of Large Foundation Models:Reconstruction, Generation, and Embodied Transfer30 Jul 2026
- 2026STAR: Skeletal Token Alignment and Rearrangement for Interaction Recognition19 Jul 2026
- 2026Towards in-the-wild Egocentric 3D Hand-Object Pose Estimation29 Jun 2026
- 2026V2P-Manip: Learning Dexterous Manipulation from Monocular Human Videos15 Jun 2026
- 2026PhysHanDI: Physics-Based Reconstruction of Hand-Deformable Object Interactions10 May 2026
- 2026Grasp in Gaussians: Fast Monocular Reconstruction of Dynamic Hand-Object Interactions14 Apr 2026
- 2026ForeHOI: Feed-forward 3D Object Reconstruction from Daily Hand-Object Interaction Videos5 Feb 2026
- 2026AGILE: Hand-Object Interaction Reconstruction from Video via Agentic Generation4 Feb 2026
- 2026Towards Egocentric 3D Hand Pose Estimation in Unseen Domains10 Jan 2026
- 2025Gaze Beyond the Frame: Forecasting Egocentric 3D Visual Span23 Nov 2025
38 more
- 2025Person Identification from Egocentric Human-Object Interactions using 3D Hand Pose20 Sep 2025
- 2025Follow My Hold: Hand-Object Interaction Reconstruction through Geometric Guidance25 Aug 2025
- 2025MagicHOI: Leveraging 3D Priors for Accurate Hand-object Reconstruction from Short Monocular Video Clips7 Aug 2025
- 2025EgoAdapt: Adaptive Multisensory Distillation and Policy Learning for Efficient Egocentric Perception26 Jun 2025
- 2025Egocentric Human-Object Interaction Detection: A New Benchmark and Method17 Jun 2025
- 2025Towards Dynamic 3D Reconstruction of Hand-Instrument Interaction in Ophthalmic Surgery23 May 2025
- 2025BIGS: Bimanual Category-agnostic Interaction Reconstruction from Monocular Videos via 3D Gaussian Splatting12 Apr 2025
- 2025The Invisible EgoHand: 3D Hand Forecasting through EgoBody Pose Estimation11 Apr 2025
- 2025ManipTrans: Efficient Dexterous Bimanual Manipulation Transfer via Residual Learning27 Mar 2025
- 2025HORT: Monocular Hand-held Objects Reconstruction with Transformers27 Mar 2025
- 2025Bootstrap Your Own Views: Masked Ego-Exo Modeling for Fine-grained View-invariant Video Representations25 Mar 2025
- 2025FunHOI: Annotation-Free 3D Hand-Object Interaction Generation via Functional Text Guidance28 Feb 2025
- 2025QORT-Former: Query-optimized Real-time Transformer for Understanding Two Hands Manipulating Objects27 Feb 2025
- 2025Collaborative Learning for 3D Hand-Object Reconstruction and Compositional Action Recognition from Egocentric RGB Videos Using Superquadrics13 Jan 2025
- 2024Vinci: A Real-time Embodied Smart Assistant based on Egocentric Vision-Language Model30 Dec 2024
- 2024FastGrasp: Efficient Grasp Synthesis with Diffusion22 Nov 2024
- 2024EasyHOI: Unleashing the Power of Large Models for Reconstructing Hand-Object Interactions in the Wild21 Nov 2024
- 2024Dynamic Reconstruction of Hand-Object Interaction with Distributed Force-aware Contact Representation14 Nov 2024
- 2024CHASE: Learning Convex Hull Adaptive Shift for Skeleton-based Multi-Entity Action Recognition9 Oct 2024
- 2024A vision-based framework for human behavior understanding in industrial assembly lines25 Sep 2024
- 2024Hand-Object Interaction Pretraining from Videos12 Sep 2024
- 2024Dense Hand-Object(HO) GraspNet with Full Grasping Taxonomy and Dynamics6 Sep 2024
- 20243D Whole-body Grasp Synthesis with Directional Controllability29 Aug 2024
- 2024SHARP: Segmentation of Hands and Arms by Range using Pseudo-Depth for Enhanced Egocentric 3D Hand Pose Estimation and Action Recognition19 Aug 2024
- 2024EgoGaussian: Dynamic Scene Understanding from Egocentric Video with 3D Gaussian Splatting28 Jun 2024
- 2024Human Modelling and Pose Estimation Overview27 Jun 2024
- 2024DICE: End-to-end Deformation Capture of Hand-Face Interactions from a Single Image26 Jun 2024
- 2024Multimodal Cross-Domain Few-Shot Learning for Egocentric Action Recognition30 May 2024
- 2024Hand-Object Interaction Controller (HOIC): Deep Reinforcement Learning for Reconstructing Interactions with Physics4 May 2024
- 2024Single-View Scene Point Cloud Human Grasp Generation24 Apr 2024
- 2024G-HOP: Generative Hand-Object Prior for Interaction Reconstruction and Grasp Synthesis18 Apr 2024
- 2024In My Perspective, In My Hands: Accurate Egocentric 2D Hand Pose and Action Recognition14 Apr 2024
- 2024Reconstructing Hand-Held Objects in 3D from Images and Videos9 Apr 2024
- 2024GraspXL: Generating Grasping Motions for Diverse Objects at Scale28 Mar 2024
- 2024Benchmarks and Challenges in Pose Estimation for Egocentric Hand Interactions with Objects25 Mar 2024
- 2024Learning by Watching: A Review of Video-based Learning Approaches for Robot Manipulation11 Feb 2024
- 2024NCRF: Neural Contact Radiance Fields for Free-Viewpoint Rendering of Hand-Object Interaction8 Feb 2024
- 2023A Two-stream Hybrid CNN-Transformer Network for Skeleton-based Human Interaction Recognition31 Dec 2023
50 newest of 139 All 139 (JSON)
- 2023Affordance Diffusion: Synthesizing Hand-Object Interactionscited by 110
- 2024G-HOP: Generative Hand-Object Prior for Interaction Reconstruction and Grasp Synthesiscited by 43
- 2025MagicHOI: Leveraging 3D Priors for Accurate Hand-object Reconstruction from Short Monocular Video Clipscited by 15
- 2025Follow My Hold: Hand-Object Interaction Reconstruction through Geometric Guidancecited by 8
- 2024FastGrasp: Efficient Grasp Synthesis with Diffusioncited by 7
- 2025Follow My Hold: Hand-Object Interaction Reconstruction through Geometric Guidance25 Aug 2025
- 2025MagicHOI: Leveraging 3D Priors for Accurate Hand-object Reconstruction from Short Monocular Video Clips7 Aug 2025
- 2024FastGrasp: Efficient Grasp Synthesis with Diffusion22 Nov 2024
- 2024G-HOP: Generative Hand-Object Prior for Interaction Reconstruction and Grasp Synthesis18 Apr 2024
- 2023Affordance Diffusion: Synthesizing Hand-Object Interactions21 Mar 2023
- 2021DexYCB: A Benchmark for Capturing Hand Grasping of Objectscited by 320
- 2022ARCTIC: A Dataset for Dexterous Bimanual Hand-Object Manipulationcited by 306
- 2021H2O: Two Hands Manipulating Objects for First Person Interaction Recognitioncited by 251
- 2021Hand-Object Contact Consistency Reasoning for Human Grasps Generationcited by 160
- 2021Towards Long-Form Video Understandingcited by 146
- 2021Semi-Supervised 3D Hand-Object Poses Estimation with Interactions in Timecited by 140
- 2021ContactOpt: Optimizing Contact to Improve Graspscited by 137
- 2021Collaborative Regression of Expressive Bodies using Moderationcited by 137
- 2022OakInk: A Large-scale Knowledge Repository for Understanding Hand-Object Interactioncited by 129
- 2021Keypoint Transformer: Solving Joint Identification in Challenging Hands and Object Interactions for Accurate 3D Pose Estimationcited by 122
- 2021D-Grasp: Physically Plausible Dynamic Grasp Synthesis for Hand-Object Interactionscited by 109
- 2022Recovering 3D Human Mesh from Monocular Images: A Surveycited by 103
12 most cited of 132 All 132 (JSON)
- 2026Functional Hand Type Prior for 3D Hand Pose Estimation and Action Recognition from Egocentric View Monocular Videos28 Sep 2026
- 2026De-biasing Skeleton-based Action Recognition with Convex Hull Adaptive Shift26 Sep 2026
- 2026Hand-Object Interaction in the Age of Large Foundation Models:Reconstruction, Generation, and Embodied Transfer30 Jul 2026
- 2026STAR: Skeletal Token Alignment and Rearrangement for Interaction Recognition19 Jul 2026
- 2026Towards in-the-wild Egocentric 3D Hand-Object Pose Estimation29 Jun 2026
- 2026V2P-Manip: Learning Dexterous Manipulation from Monocular Human Videos15 Jun 2026
- 2026PhysHanDI: Physics-Based Reconstruction of Hand-Deformable Object Interactions10 May 2026
- 2026Grasp in Gaussians: Fast Monocular Reconstruction of Dynamic Hand-Object Interactions14 Apr 2026
- 2026ForeHOI: Feed-forward 3D Object Reconstruction from Daily Hand-Object Interaction Videos5 Feb 2026
- 2026Towards Egocentric 3D Hand Pose Estimation in Unseen Domains10 Jan 2026
- 2025Gaze Beyond the Frame: Forecasting Egocentric 3D Visual Span23 Nov 2025
- 2025Person Identification from Egocentric Human-Object Interactions using 3D Hand Pose20 Sep 2025
12 newest of 132 All 132 (JSON)