← Search

Omar Tahri

10 accepted papers

2026

Stable Gravity Compensation and 6-DoF Manipulation of a Tethered Magnetic Endoscope with an Optimized End-Effector

ICRA 2026poster

This paper presents the design and experimental validation of a magnetic end-effector optimized for the robust manipulation of a tethered magnetic endoscope in six-degrees-of-freedom (6-DoF). The symmetrical end-effector integrates two pairs of permanent magnets that generate a stable 2D attraction …

Cited by 0SourceScholar
2025

Stable Gravity Compensation and 6-DoF Manipulation of a Tethered Magnetic Endoscope With an Optimized End-Effector

RA-L 2025

This paper presents the design and experimental validation of a magnetic end-effector optimized for the robust manipulation of a tethered magnetic endoscope in six-degrees-of-freedom (6-DoF). The symmetrical end-effector integrates two pairs of permanent magnets that generate a stable 2D attraction

Cited by 0SourceScholar
2021

Visual-Tactile Fusion for 3D Objects Reconstruction from a Single Depth View and a Single Gripper Touch for Robotics Tasks

IROS 2021poster

The planning of robotic manipulation and grasping tasks depends on the reconstruction of the 3D object’s shape. Most of the existing 3D object reconstruction methods are based on visual sensing that are limited due to the lack of the object’s occluded side information. The goal of this paper is to o…

Cited by 9SourceScholar
2019

A Four-magnet System for 2D Wireless Open-Loop Control of Microrobots

ICRA 2019poster

This paper presents a novel permanent magnets based actuator capable of injecting and 2D wireless control the motion of an untethered microrobot. The actuator is obtained with a simple, but an effective arrangement of four permanent magnets. Its novelty is that it creates local maxima of the magneti…

Cited by 18SourceScholar
2018

Active Structure-from-Motion for 3D Straight LinesBehaviors* This work was partially supported by the Portuguese FCT grants PD/Bd/135015/2017 (through the NETSys Doctoral Program) & SFRH/BPD/111495/2015, and ISRILARSyS Strategic Funding by the FCT project PEst-OE/EEI/LA0009/2013

IROS 2018

A reliable estimation of 3D parameters is a must for several applications like planning and control, in which is included Image-Based Visual Servoing. This control scheme depends directly on 3D parameters, e.g. depth of points, and/or depth and direction of 3D straight lines. Recently, a framework f

Cited by 23SourceScholar
2018

Closed form solution for Rotation Estimation using Photometric Spherical Moments

IROS 2018poster

This paper presents new schemes to estimate 3D rotation from spherical images. Unlike existing approaches, spherical moment properties are exploited to obtain a closed form solution without iteratively mimimizing a cost function. Actually, three methods using spherical moments are proposed: two of t…

Cited by 7SourceScholar
2017

Calibration of magnetic platform prototype for vision-based drugs delivery inside human cochlea

IROS 2017poster

The magnetic particles actuated by an external magnetic field present a promising solution as drug carrier at the inner ear (cochlea). This technique allows non-invasive drug delivery with minimal hydraulic force and very high precision. In this work, magnetic prototyping platform for intra cochlear…

Cited by 3SourceScholar
2015

An improved modelling scheme for photometric moments with inclusion of spatial weights for visual servoing with partial appearance/disappearance

ICRA 2015poster

Visual servoing based on photometric data is of great interest since it does not necessitate any image processing or visual tracking steps. A vital issue in such methods is the change in the image resulting from the appearance and disappearance of portions of the scene from the camera field-of-view…

Cited by 14SourceScholar