DexCanvas: Bridging Human Demonstrations and Robot Learning for Dexterous Manipulation

Anonymous Authors

Anonymous Institution(s)

A large-scale hybrid real-synthetic dataset containing 7,000 hours of human manipulation data seeded from 70 hours of real demonstrations, organized across 21 fundamental manipulation types with physics-validated contact forces.

DexCanvas Dataset Overview

Dataset Overview

DexCanvas is a large-scale hybrid real-synthetic human manipulation dataset containing 7,000 hours of dexterous hand-object interactions seeded from 70 hours of real human demonstrations. Each entry combines synchronized multi-view RGB-D, high-precision mocap with MANO hand parameters, and per-frame contact points with physically consistent force profiles.

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Contact Forces
Physics-validated per-frame contact points, force vectors, and object wrenches
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3.0B Frames
100× expansion from 70 hours of real human demonstrations
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21 Types
Manipulation types from Cutkosky taxonomy
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30 Objects
Geometric primitives + YCB objects

Data Processing Pipeline

1

Motion Capture Data

Motion Capture Data Collection

22-camera optical mocap system captures hand kinematics and object trajectories at 30 Hz

2

RL-based Force Reconstruction

RL Trajectory Reconstruction

Reinforcement learning policies reproduce demonstrations in physics simulation to extract contact forces

3

Physics-validated Annotations

Contact and Force Information

Per-frame contact points, force vectors, and object wrenches measured from simulator

4

Downstream Validation

Force-conditioned MANO policy rollout
Force-conditioned Policy
DexHand021 disk retargeting rollout
DexHand021
DexHand021 Pro disk retargeting rollout
DexHand021 Pro

Force-conditioned policy, and contact-driven retargeting to DexHand embodiments

Manipulation Types & Objects

The taxonomy hierarchically organizes manipulation strategies into four main categories: Power (whole-hand grasps), Intermediate (transitional grasps), Precision (fingertip control), and In-hand Manipulation (dynamic reorientation).

Cutkosky Taxonomy of 21 Manipulation Types