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Gustavo J. G. Lahr

8 accepted papers

2025

Context-Aware Collaborative Pushing of Heavy Objects Using Skeleton-Based Intention Prediction

ICRA 2025

In physical human-robot interaction, force feedback has been the most common sensing modality to convey the human intention to the robot. It is widely used in admittance control to allow the human to direct the robot. However, it cannot be used in scenarios where direct force feedback is not availab

Cited by 3SourceScholar
2024

SRL-VIC: A Variable Stiffness-Based Safe Reinforcement Learning for Contact-Rich Robotic Tasks

RA-L 2024

Reinforcement learning (RL) has emerged as a promising paradigm in complex and continuous robotic tasks, however, safe exploration has been one of the main challenges, especially in contact-rich manipulation tasks in unstructured environments. Focusing on this issue, we propose <bold xmlns:mml="http

Cited by 25SourceScholar
2023

Impact-Friendly Object Catching at Non-Zero Velocity Based on Combined Optimization and Learning

IROS 2023poster

This paper proposes a combined optimization and learning method for impact-friendly, non-prehensile catching of objects at non-zero velocity. Through a constrained Quadratic Programming problem, the method generates optimal trajectories up to the contact point between the robot and the object to min…

Cited by 3SourceScholar
2022

A hybrid model-based evolutionary optimization with passive boundaries for physical human-robot interaction

ICRA 2022poster

The field of physical human-robot interaction has dramatically evolved in the last decades. As a result, the robotic system's requirements have become more challenging, including personalized behavior for different tasks and users. Various machine learning techniques have been proposed to give the r…

Cited by 1SourceScholar
2022

Electromyography-Based, Robust Hand Motion Classification Employing Temporal Multi-Channel Vision Transformers

RA-L 2022

With an increasing use of robotic and bionic devices for the execution of everyday life, complex tasks, Electromyography (EMG) based interfaces are being explored as candidate technologies for facilitating an intuitive interaction with such devices. However, EMG-based interfaces typically require ap

Cited by 30SourceScholar
2019

Joint kinematic configuration influence on the passivity of an impedance-controlled robotic leg

ICRA 2019poster

Although the design of legged robots may be dependent on the application, all of them share the need to safely deal with physical interaction with the environment in every step they take. Impedance controllers have been applied with success to handle contact, and some authors applied the concept of…

Cited by 2SourceScholar
2018

Online prediction of threading task failure using Convolutional Neural Networks

IROS 2018poster

Fasteners assembly automation in different industries require flexible systems capable of dealing with faulty situations. Fault detection and isolation (FDI) techniques are used to detect failure and deal with them, avoiding losses on parts, tools or robots. However, FDI usually deals with the fault…

Cited by 18SourceScholar
2017

Adjustable interaction control using genetic algorithm for enhanced coupled dynamics in tool-part contact

IROS 2017poster

Impedance control is commonly implemented for robotic contact applications. Its performance is a function of the dynamic coupling between the environment and the robot's impedance controller: inertia, stiffness and damping. An interaction task may be considered successfully accomplished when the ele…

Cited by 8SourceScholar