2013 IEEE International Conference on Systems, Man, and Cybernetics, 2013
ABSTRACT With this paper, we report a novel wearable interface dedicated to provide new types of ... more ABSTRACT With this paper, we report a novel wearable interface dedicated to provide new types of 3D interactions with mobile devices. Proposed interface is based on the fact that the foot can be exploited in the interaction with a virtual 3D world. By using several force sensors incorporated in the sole and an accelerometer attached to the shoe, gestures performed with the foot are interpreted in order to let the user interact with entities of a 3D virtual environment displayed on a mobile device. Being located inside a shoe this interface is fully compatible to constraints related to mobile devices. Indeed as a wearable and transparent device it can be carried everywhere and therefore can be exploited everywhere.
ABSTRACT It is known that the type of the soil can affect balance. Here we report a serious game ... more ABSTRACT It is known that the type of the soil can affect balance. Here we report a serious game designed for training users at maintaining balance over five types of soil (broken stone, stone dust, sand, concrete and wood). By using an augmented shoe and proposed navigation metaphor, in this game, the user is invited to browse a maze while standing balance over the physical grounds. During the exploration, exercises targeting assessment of balance control are suggested. To insure the effectiveness of this training program, four exercises based on the Berg Balance Scale and the Tinetti Balance Assessment Tool are incorporated in the game.
Taking care of the elders constitutes a major issue in the western societies. Smart homes appear ... more Taking care of the elders constitutes a major issue in the western societies. Smart homes appear to be a socially and economically viable solution. They consist in habitats augmented with sensors and actuators enabling to achieve activity recognition and to provide assistive services to a resident. Stationary aspect of sensors used in most smart homes makes the concept difficult to deploy in existing homes, and involves a high cost. In this paper, we propose an inexpensive non-vision-based system ably to recognize, in real-time, activities and errors of a resident. This proposed recognition system is based on a shoe equipped with a single sensor: a three-axis accelerometer and on a state-transition algorithmic approach using fuzzy logic. We have examined the learning data as frequency distributions, where the probability histograms have been directly interpreted as fuzzy set. We conducted experiments of the system in our smart home by simulating (multiple times) several scenarios based on a morning routine. These scenarios were based on clinical data gathered in a previous experiment with actual Alzheimer's patients. We obtained promising results showing that the proposed activity and error recognition system are highly effective.
Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics, 2012
ABSTRACT It is known that the physical conditions of an environment might represent an important ... more ABSTRACT It is known that the physical conditions of an environment might represent an important risk of falling. In this paper, we report an ongoing project toward the creation of intelligent clothes aiming at preventing falls related to such conditions. The package described here is centered on an intelligent shoe. The developed prototype counts two main parts: hardware and software. The material is composed of a set of sensors and actuators, distributed in strategic positions of the shoe, while the software is a soft real-time system running on a Smartphone. Our prototype has been served for the differentiation of physical properties of soils (concrete, broken stone, sand and dust stone).
While common user interface designs tend to focus on visual feedback, other sensory channels may ... more While common user interface designs tend to focus on visual feedback, other sensory channels may be used in order to reduce the cognitive load of the visual one. In this paper, non-visual environments are presented in order to investigate how users exploit information ...
IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2015
The aim of this study is to improve and facilitate the methods used to assess risk of falling at ... more The aim of this study is to improve and facilitate the methods used to assess risk of falling at home among older people through the computation of a risk of falling in real time in daily activities. In order to increase a real time computation of the risk of falling, a closed-loop balance model is proposed and compared with One-Leg Standing Test (OLST). This balance model allows studying the postural response of a person having an unpredictable perturbation. Twenty-nine volunteers participated in this study for evaluating the effectiveness of the proposed system which includes seventeen elder participants: ten healthy elderly (68.4 ± 5.5 years), seven Parkinson's disease (PD) subjects (66.28 ± 8.9 years), and twelve healthy young adults (28.27 ± 3.74 years). Our work suggests that there is a relationship between OLST score and the risk of falling based on center of pressure measurement with four low cost force sensors located inside an instrumented insole, which could be predicted using our suggested closed-loop balance model. For long term monitoring at home, this system could be included in a medical electronic record and could be useful as a diagnostic aid tool.
While common user interface designs tend to focus on visual feedback, other sensory channels may ... more While common user interface designs tend to focus on visual feedback, other sensory channels may be used in order to reduce the cognitive load of the visual one. In this paper, non-visual environments are presented in order to investigate how users exploit information ...
With this paper, we report a novel wearable interface dedicated to provide new types of 3D intera... more With this paper, we report a novel wearable interface dedicated to provide new types of 3D interactions with mobile devices. Proposed interface is based on the fact that the foot can be exploited in the interaction with a virtual 3D world. By using several force sensors incorporated in the sole and an accelerometer attached to the shoe; gestures performed with the foot are interpreted in order to let the user interact with a 3D virtual environment. Being located inside a shoe this interface is fully compatible to constraints related to mobile devices. Indeed as a wearable and transparent device it can be carried everywhere and therefore can be exploited everywhere.
The method can determine physical properties of the ground stepped upon by a user wearing a footw... more The method can determine physical properties of the ground stepped upon by a user wearing a footwear incorporating an accelerometer, and includes : receiving a raw signal from the accelerometer during at least one step being taken by the user on the ground; identifying, in the received raw signal, at least one characteristic signature; associating the at least one characteristic signature to physical properties of the ground; and generating a signal indicating the physical properties based on said association. The generated signal can further be used to advise a user of a risk of falling based on at least the physical properties of the ground.
2015 IEEE International Symposium on Medical Measurements and Applications (MeMeA) Proceedings, 2015
ABSTRACT The aim of this study is to improve and facilitate the methods used to assess risk of fa... more ABSTRACT The aim of this study is to improve and facilitate the methods used to assess risk of falling among older people at home. We propose an automatic version of One-Leg Standing (OLS) test for risk of falling assessment by using a Smartphone and an instrumented insole. For better clinical assessment tests, this study focuses on exploring methods to combine the most important parameters of risk of falling into a single score. Twenty-three (23) volunteers participated in this study for evaluating the effectiveness of the proposed system which includes eleven (11) elderly participants: seven (7) healthy elderly (67.16±4.24), four (4) Parkinson disease (PD) subjects (70±12.73) and twelve (12) healthy young adults (28.27±3.74). Our work suggests that there is an inverse relationship between OLS score proposed and risk of falling. Proposed instrumented insole and application running on Android could be useful at home as a diagnostic aid tool for analyzing the performance of elderly people in OLS test.
2013 IEEE International Conference on Systems, Man, and Cybernetics, 2013
ABSTRACT Walking in an unfamiliar environment may include some risk of falling. For frail seniors... more ABSTRACT Walking in an unfamiliar environment may include some risk of falling. For frail seniors, these risks can significantly increase according to their ability to maintain balance. Among several factors, the user's balance can be affected by several risks including the characteristics of the user's gait. To overcome this issue, this paper presents three methods: one using a statistical model, and two others using an artificial neural network (ANN). The latter two can be differentiated by the use of constraints applied onto the raw data. Centered on non-invasive augmented shoes, our proposed system uses mobile technology to provide an on-site assistance to users, replacing the bulky equipment usually needed for clinical gait analysis. The experimental framework is based on visual disturbances to induce variation in the parameters of the user's gait. Preliminary results obtained from this framework suggest that our models enable the risk level classification.
2013 IEEE International Conference on Systems, Man, and Cybernetics, 2013
ABSTRACT With this paper, we report a novel wearable interface dedicated to provide new types of ... more ABSTRACT With this paper, we report a novel wearable interface dedicated to provide new types of 3D interactions with mobile devices. Proposed interface is based on the fact that the foot can be exploited in the interaction with a virtual 3D world. By using several force sensors incorporated in the sole and an accelerometer attached to the shoe, gestures performed with the foot are interpreted in order to let the user interact with entities of a 3D virtual environment displayed on a mobile device. Being located inside a shoe this interface is fully compatible to constraints related to mobile devices. Indeed as a wearable and transparent device it can be carried everywhere and therefore can be exploited everywhere.
2013 IEEE International Conference on Systems, Man, and Cybernetics, 2013
ABSTRACT With this paper, we report a novel wearable interface dedicated to provide new types of ... more ABSTRACT With this paper, we report a novel wearable interface dedicated to provide new types of 3D interactions with mobile devices. Proposed interface is based on the fact that the foot can be exploited in the interaction with a virtual 3D world. By using several force sensors incorporated in the sole and an accelerometer attached to the shoe, gestures performed with the foot are interpreted in order to let the user interact with entities of a 3D virtual environment displayed on a mobile device. Being located inside a shoe this interface is fully compatible to constraints related to mobile devices. Indeed as a wearable and transparent device it can be carried everywhere and therefore can be exploited everywhere.
ABSTRACT It is known that the type of the soil can affect balance. Here we report a serious game ... more ABSTRACT It is known that the type of the soil can affect balance. Here we report a serious game designed for training users at maintaining balance over five types of soil (broken stone, stone dust, sand, concrete and wood). By using an augmented shoe and proposed navigation metaphor, in this game, the user is invited to browse a maze while standing balance over the physical grounds. During the exploration, exercises targeting assessment of balance control are suggested. To insure the effectiveness of this training program, four exercises based on the Berg Balance Scale and the Tinetti Balance Assessment Tool are incorporated in the game.
Taking care of the elders constitutes a major issue in the western societies. Smart homes appear ... more Taking care of the elders constitutes a major issue in the western societies. Smart homes appear to be a socially and economically viable solution. They consist in habitats augmented with sensors and actuators enabling to achieve activity recognition and to provide assistive services to a resident. Stationary aspect of sensors used in most smart homes makes the concept difficult to deploy in existing homes, and involves a high cost. In this paper, we propose an inexpensive non-vision-based system ably to recognize, in real-time, activities and errors of a resident. This proposed recognition system is based on a shoe equipped with a single sensor: a three-axis accelerometer and on a state-transition algorithmic approach using fuzzy logic. We have examined the learning data as frequency distributions, where the probability histograms have been directly interpreted as fuzzy set. We conducted experiments of the system in our smart home by simulating (multiple times) several scenarios based on a morning routine. These scenarios were based on clinical data gathered in a previous experiment with actual Alzheimer's patients. We obtained promising results showing that the proposed activity and error recognition system are highly effective.
Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics, 2012
ABSTRACT It is known that the physical conditions of an environment might represent an important ... more ABSTRACT It is known that the physical conditions of an environment might represent an important risk of falling. In this paper, we report an ongoing project toward the creation of intelligent clothes aiming at preventing falls related to such conditions. The package described here is centered on an intelligent shoe. The developed prototype counts two main parts: hardware and software. The material is composed of a set of sensors and actuators, distributed in strategic positions of the shoe, while the software is a soft real-time system running on a Smartphone. Our prototype has been served for the differentiation of physical properties of soils (concrete, broken stone, sand and dust stone).
While common user interface designs tend to focus on visual feedback, other sensory channels may ... more While common user interface designs tend to focus on visual feedback, other sensory channels may be used in order to reduce the cognitive load of the visual one. In this paper, non-visual environments are presented in order to investigate how users exploit information ...
IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2015
The aim of this study is to improve and facilitate the methods used to assess risk of falling at ... more The aim of this study is to improve and facilitate the methods used to assess risk of falling at home among older people through the computation of a risk of falling in real time in daily activities. In order to increase a real time computation of the risk of falling, a closed-loop balance model is proposed and compared with One-Leg Standing Test (OLST). This balance model allows studying the postural response of a person having an unpredictable perturbation. Twenty-nine volunteers participated in this study for evaluating the effectiveness of the proposed system which includes seventeen elder participants: ten healthy elderly (68.4 ± 5.5 years), seven Parkinson's disease (PD) subjects (66.28 ± 8.9 years), and twelve healthy young adults (28.27 ± 3.74 years). Our work suggests that there is a relationship between OLST score and the risk of falling based on center of pressure measurement with four low cost force sensors located inside an instrumented insole, which could be predicted using our suggested closed-loop balance model. For long term monitoring at home, this system could be included in a medical electronic record and could be useful as a diagnostic aid tool.
While common user interface designs tend to focus on visual feedback, other sensory channels may ... more While common user interface designs tend to focus on visual feedback, other sensory channels may be used in order to reduce the cognitive load of the visual one. In this paper, non-visual environments are presented in order to investigate how users exploit information ...
With this paper, we report a novel wearable interface dedicated to provide new types of 3D intera... more With this paper, we report a novel wearable interface dedicated to provide new types of 3D interactions with mobile devices. Proposed interface is based on the fact that the foot can be exploited in the interaction with a virtual 3D world. By using several force sensors incorporated in the sole and an accelerometer attached to the shoe; gestures performed with the foot are interpreted in order to let the user interact with a 3D virtual environment. Being located inside a shoe this interface is fully compatible to constraints related to mobile devices. Indeed as a wearable and transparent device it can be carried everywhere and therefore can be exploited everywhere.
The method can determine physical properties of the ground stepped upon by a user wearing a footw... more The method can determine physical properties of the ground stepped upon by a user wearing a footwear incorporating an accelerometer, and includes : receiving a raw signal from the accelerometer during at least one step being taken by the user on the ground; identifying, in the received raw signal, at least one characteristic signature; associating the at least one characteristic signature to physical properties of the ground; and generating a signal indicating the physical properties based on said association. The generated signal can further be used to advise a user of a risk of falling based on at least the physical properties of the ground.
2015 IEEE International Symposium on Medical Measurements and Applications (MeMeA) Proceedings, 2015
ABSTRACT The aim of this study is to improve and facilitate the methods used to assess risk of fa... more ABSTRACT The aim of this study is to improve and facilitate the methods used to assess risk of falling among older people at home. We propose an automatic version of One-Leg Standing (OLS) test for risk of falling assessment by using a Smartphone and an instrumented insole. For better clinical assessment tests, this study focuses on exploring methods to combine the most important parameters of risk of falling into a single score. Twenty-three (23) volunteers participated in this study for evaluating the effectiveness of the proposed system which includes eleven (11) elderly participants: seven (7) healthy elderly (67.16±4.24), four (4) Parkinson disease (PD) subjects (70±12.73) and twelve (12) healthy young adults (28.27±3.74). Our work suggests that there is an inverse relationship between OLS score proposed and risk of falling. Proposed instrumented insole and application running on Android could be useful at home as a diagnostic aid tool for analyzing the performance of elderly people in OLS test.
2013 IEEE International Conference on Systems, Man, and Cybernetics, 2013
ABSTRACT Walking in an unfamiliar environment may include some risk of falling. For frail seniors... more ABSTRACT Walking in an unfamiliar environment may include some risk of falling. For frail seniors, these risks can significantly increase according to their ability to maintain balance. Among several factors, the user's balance can be affected by several risks including the characteristics of the user's gait. To overcome this issue, this paper presents three methods: one using a statistical model, and two others using an artificial neural network (ANN). The latter two can be differentiated by the use of constraints applied onto the raw data. Centered on non-invasive augmented shoes, our proposed system uses mobile technology to provide an on-site assistance to users, replacing the bulky equipment usually needed for clinical gait analysis. The experimental framework is based on visual disturbances to induce variation in the parameters of the user's gait. Preliminary results obtained from this framework suggest that our models enable the risk level classification.
2013 IEEE International Conference on Systems, Man, and Cybernetics, 2013
ABSTRACT With this paper, we report a novel wearable interface dedicated to provide new types of ... more ABSTRACT With this paper, we report a novel wearable interface dedicated to provide new types of 3D interactions with mobile devices. Proposed interface is based on the fact that the foot can be exploited in the interaction with a virtual 3D world. By using several force sensors incorporated in the sole and an accelerometer attached to the shoe, gestures performed with the foot are interpreted in order to let the user interact with entities of a 3D virtual environment displayed on a mobile device. Being located inside a shoe this interface is fully compatible to constraints related to mobile devices. Indeed as a wearable and transparent device it can be carried everywhere and therefore can be exploited everywhere.
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Papers by Bob A. J. Menelas