Publications de Arnaud Barré | EPFL Graph Search

On the accuracy of the Conventional gait Model: Distinction between marker misplacement and soft tissue artefact errors

There is a lack of knowledge about the accuracy of the Conventional Gait Model (CGM), compared to the true bone motion. Accuracy is hindered by both marker misplacement and soft-tissue artefact (STA). The effect of the lateral knee marker (KNE) misplacemen ...

ELSEVIER SCI LTD2023

Error performances of a model-based biplane fluoroscopic system for tracking knee prosthesis during treadmill gait task

Kamiar Aminian, Arnaud Barré

Roentgen stereophotogrammetry analysis technique allows an accurate measurement of knee joint prosthesis position and orientation using two X-ray images. Although this technique is used generally during static procedure, it is possible to use it with a bip ...

2018

Assessment of the lower limb soft tissue artefact at marker-cluster level with a high-density marker set during walking

Kamiar Aminian, Arnaud Barré

The estimation of joint kinematics from skin markers is hindered by the soft tissue artefact (STA), a well-known phenomenon although not fully characterized. While most assessments of the STA have been performed based on the individual skin markers displac ...

Elsevier2017

Soft tissue artifact distribution on lower limbs during treadmill gait: Influence of skin markers' location on cluster design

Kamiar Aminian, Arnaud Barré

© 2015 Elsevier Ltd. Segment poses and joint kinematics estimated from skin markers are highly affected by soft tissue artifact (STA) and its rigid motion component (STA. RM ). While four marker-clusters could decrease the STA non-rigid motion d ...

Elsevier2015

Cognitive Loading Affects Motor Awareness and Movement Kinematics but Not Locomotor Trajectories during Goal-Directed Walking in a Virtual Reality Environment

Kamiar Aminian, Olaf Blanke, Oliver Alan Kannape, Arnaud Barré

The primary purpose of this study was to investigate the effects of cognitive loading on movement kinematics and trajectory formation during goal-directed walking in a virtual reality (VR) environment. The secondary objective was to measure how participant ...

Public Library of Science2014

Biomechanical ToolKit: Open-source framework to visualize and process biomechanical data

Arnaud Barré, Stéphane Armand

C3D file format is widely used in the biomechanical field by companies and laboratories to store motion capture systems data. However, few software packages can visualize and modify the integrality of the data in the C3D file. Our objective was to develop ...

Elsevier2014

Assessment of the soft tissue artifact on the lower limb using bi-plane fluoroscopy and stereophotogrammetry

Arnaud Barré

EPFL2014

Soft tissue artifact assessment during treadmill walking in subjects with total knee arthroplasty

Jean-Philippe Thiran, Kamiar Aminian, Arnaud Barré

Accurate measurement of knee kinematics during functional activities suffers mainly from soft tissue artifact (STA): the combination of local surface deformations and rigid movement of markers relative to the underlying bone (also called rigid STA movement ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Accurate angle estimation in smart knee prostheses via magnetic implantable and skin-mounted sensors

Kamiar Aminian, Arash Arami, Arnaud Barré

In this work we investigated how to measure concurrently flexion-extension and internal-external rotations in a smart knee prosthesis. A configuration of magnetic sensors and magnets were designed and embedded in knee prostheses in which each sensor measur ...

2013

Estimation of prosthetic knee angles via data fusion of implantable and wearable sensors

Kamiar Aminian, Arash Arami, Arnaud Barré, Roderik Berthelin

In this work, we studied a combination of embedded magnetic measurement system in a knee prosthesis and wearable inertial sensors to estimate two knee joint rotations namely flexion-extension and internal-external rotations. The near optimal sensor configu ...

2013