Publications & Projects

Humanoid Robot Whole-body Geometric Calibration with Embedded Sensors and a Single Plane

Humanoid Robot Whole-body Geometric Calibration with Embedded Sensors and a Single Plane

Thanh D. V. Nguyen, Vincent Bonnet, Pierre Fernbach, David Daney, Florent Lamiraux

Abstract

This paper presents a novel method for whole-body geometric calibration of humanoid robots using a single plane, embedded sensors, and an admittance controller, introducing the IROC algorithm for optimal posture selection that achieved 2.3x accuracy improvement on the TALOS robot.

Improving Operational Accuracy of a Mobile Manipulator by Modeling Geometric and Non-Geometric Parameters

Improving Operational Accuracy of a Mobile Manipulator by Modeling Geometric and Non-Geometric Parameters

Thanh D. V. Nguyen, Vincent Bonnet, Pierre Fernbach, Florent Lamiraux

2024 IEEE-RAS 23rd International Conference on Humanoid Robots (Humanoids) - Nancy, France

Abstract

This paper improves mobile manipulator accuracy by modeling geometric and non-geometric parameters including base suspension and joint backlash, achieving 60% better end-effector pose estimation on the TIAGo robot.

FIGAROH: a Python toolbox for dynamic identification and geometric calibration of robots and humans

FIGAROH: a Python toolbox for dynamic identification and geometric calibration of robots and humans

Thanh D. V. Nguyen, Vincent Bonnet, Maxime Sabbah, Maxime Gautier, Pierre Fernbach, Florent Lamiraux

2023 IEEE-RAS 22nd International Conference on Humanoid Robots (Humanoids) - Austin, Texas

Abstract

This paper introduces FIGAROH, a Python toolbox for geometric calibration and dynamic identification of robots and humans that automates model building, data processing, and optimal trajectory generation.

Non-cylindrical wrapping rods and compliant adapters for multi-mode twisting string actuation

Non-cylindrical wrapping rods and compliant adapters for multi-mode twisting string actuation

Nicolas Mouaze, Thanh D. V. Nguyen, Lionel Birglen

International Journal of Mechanisms and Robotic Systems 5 (1-2), 93-110

Abstract

This paper improves twisting string actuation efficiency through non-cylindrical wrapping rods and compliant adapters, demonstrating enhanced mechanical advantage and speed for robotic applications.

Recent Blog Posts

SO-ARM100 Full-Stack: From 3D Printing to Learning-Enabled Manipulation

SO-ARM100 Full-Stack: From 3D Printing to Learning-Enabled Manipulation

May 14, 2025

Preparing for the LeRobot Global Hackathon 2025 meant building a complete SO-ARM100 stack—from 3D-printed parts all the way to learning-enabled manipulation demos. This guide distills what worked for me into a reusable playbook. It leans on the internal project notes in the fullstack-manip repository and should help you bring up your own SO-ARM, extend it to other manipulators, and plan a month-long sprint from research to evaluation.