Safe Human-to-Humanoid Motion Imitation Using Control Barrier Functions

Fuente: arXiv
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Main Authors: Cai, Wenqi, Abanes, John, Evangeliou, Nikolaos, Tzes, Anthony
Format: Preprint
Published: 2026
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author Cai, Wenqi
Abanes, John
Evangeliou, Nikolaos
Tzes, Anthony
author_facet Cai, Wenqi
Abanes, John
Evangeliou, Nikolaos
Tzes, Anthony
contents Ensuring operational safety is critical for human-to-humanoid motion imitation. This paper presents a vision-based framework that enables a humanoid robot to imitate human movements while avoiding collisions. Human skeletal keypoints are captured by a single camera and converted into joint angles for motion retargeting. Safety is enforced through a Control Barrier Function (CBF) layer formulated as a Quadratic Program (QP), which filters imitation commands to prevent both self-collisions and human-robot collisions. Simulation results validate the effectiveness of the proposed framework for real-time collision-aware motion imitation.
format Preprint
id arxiv_https___arxiv_org_abs_2604_11447
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Safe Human-to-Humanoid Motion Imitation Using Control Barrier Functions
Cai, Wenqi
Abanes, John
Evangeliou, Nikolaos
Tzes, Anthony
Robotics
Systems and Control
Ensuring operational safety is critical for human-to-humanoid motion imitation. This paper presents a vision-based framework that enables a humanoid robot to imitate human movements while avoiding collisions. Human skeletal keypoints are captured by a single camera and converted into joint angles for motion retargeting. Safety is enforced through a Control Barrier Function (CBF) layer formulated as a Quadratic Program (QP), which filters imitation commands to prevent both self-collisions and human-robot collisions. Simulation results validate the effectiveness of the proposed framework for real-time collision-aware motion imitation.
title Safe Human-to-Humanoid Motion Imitation Using Control Barrier Functions
topic Robotics
Systems and Control
url https://arxiv.org/abs/2604.11447