Search results for: Philippe Gorce

Items from 1 to 20 out of 49 results

article

Evaluation and validation of musculoskeletal force feasible set indices: Application to manual wheelchair propulsion

Vincent Hernandez, Philippe Gorce, Nasser Rezzoug

Journal of Biomechanics > 2018 > 68 > C > 70-77

The aim of this work was to assess handrim wheelchair propulsion effectiveness, related to the applied forces on the handrim, through the force feasible set. For a given posture of the upper-limb, it represents the set of isometric forces that can be applied on the handrim in any direction. The force feasible set was predicted from a musculoskeletal model of the upper-limb and trunk (10 degrees of...

article

Improving the upper-limb force feasible set evaluation by muscles maximal isometric force identification and cocontraction factors

Vincent Hernandez, Gentiane Venture, Nasser Rezzoug, Philippe Gorce

Journal of Biomechanics > 2017 > 57 > C > 131-135

In order to improve the evaluation of the force feasible set (FFS) of the upper-limb which is of great interest in the biomechanics field, this study proposes two additional techniques. The first one is based on the identification of the maximal isometric force (MIF) of Hill-based muscles models from sEMG and isometric force measurements at the hand. The second one considers muscles cocontraction...

chapter

The effect of time pressure on stress levels during virtual wheelchair navigation

Hachem A. Lamti, Philippe Gorce

2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) > 1500 - 1503

2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

In this work stress is assessed based on EEG features. We focus our efforts on the correlation between subjective ratings and cerebral indices during virtual navigation scenarios. Ten male paraplegic subjects took part in the experiment and navigated in a virtual indoor environment. They had to fulfill two missions where time pressure parameter is introduced. Subjects were equipped with Electroencephalography...

chapter

Navigation assistance to disabled persons with powered wheelchairs using tracking system and cloud computing technologies

Khaled Salhi, Adel M. Alimi, Philippe Gorce, Mohamed Moncef Ben Khelifa

2016 IEEE Tenth International Conference on Research Challenges in Information Science (RCIS) > 1 - 6

2016 IEEE Tenth International Conference on Research Challenges in Information Science (RCIS)

This paper introduces a novel approach for secure navigation of wheelchairs. The approach is based on a combination of robotic road train based navigation and Cloud Computing technologies. The navigation strategy is inspired from elephants. Marching trunk to tail, each wheelchair in a platoon takes cues from the wheelchair just in front of it. The leader of navigation is a person. The cloud computing...

chapter

Human Articulation Efforts Estimation in the Automobile Vehicle Accessibility Movement – A Pilot Study

Jean-François Debril, Philippe Pudlo, Mohand Ouidir Ait El Menceur, Philippe Gorce, more

Lecture Notes in Computer Science > Digital Human Modeling > Part I: Shape and Movement Modeling and Anthropometry > 23-32

To build a criterion of discomfort evaluation, based on the kinematics and the dynamics of the performed movement, is an expectation of the car manufacturers. There is no reference concerning the evaluation of the articulation efforts during the automobile vehicle accessibility movement. On this point, we propose to give a first reference. Our method and our computation were verified by a well known...

chapter

Feature points tracking and emotion classification

Ahmed Fnaiech, Mounir Sayadi, Philippe Gorce

2016 2nd International Conference on Advanced Technologies for Signal and Image Processing (ATSIP) > 172 - 176

2016 2nd International Conference on Advanced Technologies for Signal and Image Processing (ATSIP)

The field of the facial recognition is especially animated these last year's considering the big number of research which was concerned with this subject, more particularly in the field of detection, classification and tracking. In this paper we present a method for feature points tracking and Emotion Classification based on the degree of characterization. We also tested facial emotion classification...

chapter

Comparison between two methods of facial emotion classification: The degree of characterization and percentage of variation

Ahmed Fnaiech, Mounir Sayadi, Philippe Gorce

2016 2nd International Conference on Advanced Technologies for Signal and Image Processing (ATSIP) > 167 - 171

2016 2nd International Conference on Advanced Technologies for Signal and Image Processing (ATSIP)

Facial expressions play a major role in human interaction view that the face reflects the inner emotions of a person This is why the analysis of faces by image processing is still a very active research topic. This paper presents a comparison between two methods of facial emotion classification: evaluation of best distances depending on degree of characterization “J” and evaluation of best distances...

chapter

Improved secure navigation of wheelchairs using multi-robot system and cloud computing technologies

Khaled Salhi, Adel M. Alimi, Mohamed Moncef Ben Khelifa, Philippe Gorce

2015 11th International Conference on Information Assurance and Security (IAS) > 50 - 54

2015 11th International Conference on Information Assurance and Security (IAS)

This paper introduces a novel approach for secure navigation of wheelchairs. The approach is based on a combination of robotic road train based navigation and Cloud Computing technologies. The navigation strategy is inspired from elephants. Marching trunk to tail, each wheelchair in a platoon takes cues from the wheelchair just in front of it. The wheelchair also communicates directly with the leader...

chapter

Trajectory Planning in Dynamic Environment Based on Partially Map Updating Using Multi-robot System for an Intelligent Wheelchair

Khaled Salhi, Adel M. Alimi, Mohamed Moncef Ben Khelifa, Philippe Gorce

2015 IEEE International Conference on Systems, Man, and Cybernetics > 737 - 742

2015 IEEE International Conference on Systems, Man, and Cybernetics (SMC)

This paper presents a multi-robot system for an intelligent wheelchair. This system creates maps of the environment using SLAM (Simultaneous Localization And Mapping) algorithm and partially updates this maps around the planned trajectory after fixing the target by the user. Temporary obstacles like humans, animals, closed doors ... Are not considered in the updating process. An object recognition...

article

Analysis of several methods and inertial sensors locations to assess gait parameters in able-bodied subjects

Khaireddine Ben Mansour, Nasser Rezzoug, Philippe Gorce

Gait & Posture > 2015 > 42 > 4 > 409-414

The purpose of this paper was to determine which types of inertial sensors and which advocated locations should be used for reliable and accurate gait event detection and temporal parameter assessment in normal adults. In addition, we aimed to remove the ambiguity found in the literature of the definition of the initial contact (IC) from the lumbar accelerometer. Acceleration and angular velocity...

article

Toward isometric force capabilities evaluation by using a musculoskeletal model: Comparison with direct force measurement

Vincent Hernandez, Nasser Rezzoug, Philippe Gorce

Journal of Biomechanics > 2015 > 48 > 12 > 3178-3184

Developing formalisms to determine force capabilities of human limbs by using musculoskeletal models could be useful for biomechanical and ergonomic applications. In this framework, the purpose of this study was to compare measured maximal isometric force capabilities at the hand in a set of Cartesian directions with forces computed from a musculoskeletal model of the upper-limb. The results were...

article

Foot side detection from lower lumbar spine acceleration

Khaireddine Ben Mansour, Nasser Rezzoug, Philippe Gorce

Gait & Posture > 2015 > 42 > 3 > 386-389

The purpose of this paper is to present a reliable algorithm to discriminate between left/right foot contact using an accelerometer located over the lower lumbar spine. With the given accelerometer frame orientation, the side detection algorithm, based on the sign of the derivative of the sinusoidal shape obtained from the filtered mediolateral (ML) acceleration, showed 100% correct side detection...

article

A numerical tool to simulate the kinematics of the ingress movement in variably-dimensioned vehicles for elderly and/or persons with prosthesis

Mohand Ouidir Ait El Menceur, Philippe Pudlo, Philippe Gorce, François-Xavier Lepoutre

International Journal of Industrial Ergonomics > 2015 > 47 > Complete > 9-29

This paper presents a method for simulating the kinematics of the vehicle ingress movement of elderly people and/or people with prostheses (represented by a humanoid mannequin with a head, trunk, pelvis and lower limbs) in variably-dimensioned vehicles, starting from real experimental data. To solve this “complex” problem, we propose a three-stage method. The first stage concerns the construction...

article

Improving Accessibility of Tactile Interaction for Older Users: Lowering Accuracy Requirements to Support Drag-and-Drop Interaction

Lilian Genaro Motti, Nadine Vigouroux, Philippe Gorce

Procedia Computer Science > 2015 > 67 > C > 366-375

Mobile applications offer great possibilities to the aging population but older adults face accessibility problems when using devices equipped with touchscreen. In order to respond to older users’ special needs, it is necessary to support older users during tactile interaction to reduce error rates. The aim of this study is to evaluate the effects of the accuracy requirements for drag-and-drop interaction...

chapter

Influence of mental fatigue on P300 and SSVEP during virtual wheelchair navigation

Hachem A. Lamti, Mohamed Moncef Ben Khelifa, Adel M. Alimi, Philippe Gorce

2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society > 1255 - 1258

2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

The aim of this paper is to investigate the influence of mental fatigue on Positive 300 (P300) and Steady State Visual Evoked Potentials (SSVEP) during virtual wheelchair navigation. For this purpose, experimental protocols were setup in order to induce mental fatigue, P300 and SSVEP. Next, the correlation between mental fatigue and P300/SSVEP parameters were investigated. At the end, the best correlated...

article

An individual and dynamic Body Segment Inertial Parameter validation method using ground reaction forces

Clint Hansen, Gentiane Venture, Nasser Rezzoug, Philippe Gorce, more

Journal of Biomechanics > 2014 > 47 > 7 > 1577-1581

Over the last decades a variety of research has been conducted with the goal to improve the Body Segment Inertial Parameters (BSIP) estimations but to our knowledge a real validation has never been completely successful, because no ground truth is available. The aim of this paper is to propose a validation method for a BSIP identification method (IM) and to confirm the results by comparing them with...

chapter

The use of brain and thought in service of handicap assistance: Wheelchair navigation

Hachem A. Lamti, Mohamed Moncef Ben Khelifa, Philippe Gorce, Adel M. Alimi

2013 International Conference on Individual and Collective Behaviors in Robotics (ICBR) > 80 - 85

2013 International Conference on Individual and Collective Behaviors in Robotics (ICBR)

The goal of Brain Eyes WHEELchair Interface (BEWHEELI) project is to command and control a powered wheelchair throughout thoughts and gaze. For this purpose, a bi-modal real time collaborative system should be put in place, so it can enhance severely disabled people mobility in hostile indoor environment.

chapter

Welcome message

Philippe Gorce, Ali Wali

2013 International Conference on Individual and Collective Behaviors in Robotics (ICBR) > 1

2013 International Conference on Individual and Collective Behaviors in Robotics (ICBR)

Welcome to Tunisia and to 2013 International Conference on Individual and Collective Behaviors in Robotics (ICBR'2013), held at Sousse during December 15–17, 2013.

chapter

Intelligent joystick for controlling power wheelchair navigation

Yassine Rabhi, Makrem Mrabet, Farhat Fnaiech, Philippe Gorce

3rd International Conference on Systems and Control > 1020 - 1025

2013 3rd International Conference on Systems and Control (ICSC)

The aim of this work is to develop a new method for driving assistance for the disabled persons for which a standard joystick is unable to provide their security. Indeed; a new intelligent control algorithm to drive a wheelchair joystick is proposed. This allows the system able to avoid the unforeseen obstacles when a prescribed trajectory of the wheelchair has to be followed by the system driven...

article

Are clinical measurements linked to the Gait Deviation Index in cerebral palsy patients?

Yoshimasa Sagawa, Eric Watelain, Géraldo De Coulon, Andre Kaelin, more

Gait & Posture > 2013 > 38 > 2 > 276-280

From a dataset of clinical assessments and gait analysis, this study was designed to determine which of the assessments or their combinations would most influence a low gait index (i.e., severe gait deviations) for individuals with cerebral palsy.A retrospective search, including clinical and gait assessments, was conducted from August 2005 to September 2009.One hundred and fifty-five individuals...

Publication date

Set your own date range

Publication type

article (32)
book (17)

Publication language

English (47)
French (2)

Keywords

WHEELCHAIRS (8)
NAVIGATION (6)
GRASPING (5)
BIOMECHANICS (4)
FEATURE EXTRACTION (4)
AUTONOMOUS NAVIGAION (3)
ELECTROENCEPHALOGRAPHY (3)
FACE (3)
FACIAL RECOGNITION (3)
FEATURE POINTS (3)
NEURAL NETWORKS (3)
PRIMATES (3)
SENSORS (3)
TRAINING (3)
ACCURACY (2)
BCI (2)
BIOLOGICAL NEURAL NETWORKS (2)
CLOUD COMPUTING (2)
CORRELATION (2)
EEG (2)
EMOTION RECOGNITION (2)
EOG (2)
EVOLUTION (2)
EXPERT SYSTEMS (2)
FORCE DISTRIBUTION (2)
FORCE PRODUCTION (2)
FTIR (2)
GAIT (2)
HIDDEN MARKOV MODELS (2)
INVERSE KINEMATICS (2)
LOCKED-IN SYNDROME (2)
MOTION CAPTURE (2)
MULTI-MODAL (2)
MUSCULOSKELETAL (2)
NEURAL NETWORK (2)
OBSTACLE AVOIDANCE (2)
OUTIL (2)
POWER GRIP (2)
POWERED WHEELCHAIR (2)
PRECISION (2)
PRECISION GRIP (2)
PRÉCISION (2)
PRÉHENSION (2)
ROBOT KINEMATICS (2)
SECURE NAVIGATION (2)
THREE-DIMENSIONAL DISPLAYS (2)
TOOL (2)
TRAJECTORY (2)
VISUALIZATION (2)
WHEELCHAIR (2)
(B) MERCURY POROSIMETRY (1)
(B) PORE SIZE DISTRIBUTION (1)
(D) BLENDED CEMENT (1)
(E) RADIOACTIVE WASTE (1)
ACCELEROMETER (1)
ACCESSIBILITY (1)
AGE EFFECT (1)
ANAESTHESIA, GENERAL (1)
ANAESTHESIA, INTRAVENOUS (1)
ARTICULATION EFFORTS (1)
ASSISTIVE ROBOTICS (1)
ATHLETIC PERFORMANCE (1)
AUTOMATIC CLASSIFICATION (1)
AUTOMOBILE ACCESSIBILITY (1)
AUTOMOBILE ACCESSIBILITY MOVEMENT STRATEGIES (1)
AUTOMOBILE VEHICLE ACCESSIBILITY (1)
BEHAVIOURAL SCIENCES COMPUTING (1)
BIOMECHANICAL MODELLING (1)
BIPEDAL ROBOT (1)
BISPECTRAL INDEX ANALYSIS (1)
BODY SEGMENT INERTIA PARAMETER (1)
BRAIN COMPUTER INTERFACES (1)
BRAIN MODELING (1)
CAMERAS (1)
CATARRHINES (1)
CATARRHINIENS (1)
CEBUS (1)
CENTER OF MASS (1)
CEREBRAL PALSY (1)
CHIMPANZEE (1)
CLASSIFICATION (1)
CLINICAL MEASUREMENTS (1)
COGNITION (1)
COMPARISON (1)
COMPUTER-USER INTERFACE (1)
CONTEXT (1)
COST (1)
COST-EFFECTIVENESS (1)
CRANK (1)
CRYSTAL PERFECTING (1)
DECISION MAKING (1)
DECISION SUPPORT (1)
DEGREE OF CHARACTERIZATION (1)
DIAGNOSTIC- REMEDIATION LOOP (1)
DIGITAL HUMAN MODELS (1)
DISABLED AND ELDERLY DRIVERS (1)
DISEASES (1)
DRAG-AND-DROP (1)
DYNAMIC OPTIMIZATION (1)
DYNAMIC STABILITY CONTROL (1)
more

Data set

Elsevier (28)
ieee (16)
Springer (4)
ACS (1)

Journal

Journal of Biomechanics (7)
International Journal of Industrial Ergonomics (6)
Gait & Posture (3)
Polymer (3)
Journal of Intelligent & Robotic Systems (2)
Behavioural Brain Research (1)
Best Practice & Research Clinical Anaesthesiology (1)
Cement and Concrete Research (1)
Comparative Biochemistry and Physiology, Part A (1)
Comptes rendus - Palevol (1)
European Journal of Applied Physiology (1)
Human Movement Science (1)
L'Anthropologie (1)
Neurocomputing (1)
Procedia Computer Science (1)
The Journal of Physical Chemistry B (1)
more

INFONA - science communication portal

Search results for: Philippe Gorce

Evaluation and validation of musculoskeletal force feasible set indices: Application to manual wheelchair propulsion

Improving the upper-limb force feasible set evaluation by muscles maximal isometric force identification and cocontraction factors

The effect of time pressure on stress levels during virtual wheelchair navigation

Navigation assistance to disabled persons with powered wheelchairs using tracking system and cloud computing technologies

Human Articulation Efforts Estimation in the Automobile Vehicle Accessibility Movement – A Pilot Study

Feature points tracking and emotion classification

Comparison between two methods of facial emotion classification: The degree of characterization and percentage of variation

Improved secure navigation of wheelchairs using multi-robot system and cloud computing technologies

Trajectory Planning in Dynamic Environment Based on Partially Map Updating Using Multi-robot System for an Intelligent Wheelchair

Analysis of several methods and inertial sensors locations to assess gait parameters in able-bodied subjects

Toward isometric force capabilities evaluation by using a musculoskeletal model: Comparison with direct force measurement

Foot side detection from lower lumbar spine acceleration

A numerical tool to simulate the kinematics of the ingress movement in variably-dimensioned vehicles for elderly and/or persons with prosthesis

Improving Accessibility of Tactile Interaction for Older Users: Lowering Accuracy Requirements to Support Drag-and-Drop Interaction

Influence of mental fatigue on P300 and SSVEP during virtual wheelchair navigation

An individual and dynamic Body Segment Inertial Parameter validation method using ground reaction forces

The use of brain and thought in service of handicap assistance: Wheelchair navigation

Welcome message

Intelligent joystick for controlling power wheelchair navigation

Are clinical measurements linked to the Gait Deviation Index in cerebral palsy patients?

Filter options

Publication date

Publication type

Publication language

Keywords

Data set

Journal

INFONA - science communication portal

Search results for: Philippe Gorce

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Publication type

Publication language

Keywords

Data set

Journal

Reporting an error / abuse

Sending the report failed

Accessibility options