The Experts below are selected from a list of 255 Experts worldwide ranked by ideXlab platform

Li Tao - One of the best experts on this subject based on the ideXlab platform.

  • Commande d'un robot de télé-échographie par asservissement visuel
    2013
    Co-Authors: Li Tao, Krupa Alexandre, Vieyres Pierre
    Abstract:

    Les robots légers utilisés pour la télé-échographie robotisée permettent, à l'expert médical, d'orienter à distance une sonde ultrasonore 2D. L'analyse en temps réel de l'image ultrasonore du patient, reçue via un lien de communication, permet à l'expert de définir un diagnostic. Les validations cliniques du concept de télé-échographie robotisée montrent qu'il est ainsi possible de pallier le manque d'experts en ultrasonographie sur des sites médicalement isolés. Le robot porte-sonde est positionné et maintenu sur le corps du patient par un assistant à partir des informations communiquées par le spécialiste via visioconférence. Cependant, la faible masse du robot, le fait qu'il soit maintenu par un assistant sur le corps du patient et les mouvements physiologiques du patient provoquent des perturbations dans la position de la sonde et engendrent ainsi des pertes des sections d'intérêt des organes étudiés. Les travaux de cette thèse ont consisté à développer une approche par asservissement visuel basé sur les moments d'image ultrasonore 2D. Le calcul des moments 2D étant basé sur les points du contour de la section d'intérêt, un algorithme de traitement d'images efficace est nécessaire pour détecter et suivre le contour d'intérêt en mouvement. Pour cela, une méthode de contour actif paramétrique basée sur les descripteurs de Fourier est présentée. Les lois de commandes correspondant à trois tâches autonomes autorisant la recherche et le maintien de visibilité d'un organe lors de l'acte médical télé-opéré sont implémentées et validées sur la plateforme robotique du projet ANR Prosit.The light weight robots used for robotized tele-echography allow the medical expert to remotely operate a 2D-ultrasound probe. The real-time analysis of the patient's ultrasound images, received via a standard communication link, provides the expert with relevant information to define a diagnosis. The clinical validations of the robotized tele-echography concept show that it is possible to overcome the lack of sonographers in medically isolated sites. The robot probe-holder is usually positioned and held on the patient's body by a paramedical staff based on information provided by the specialist via videoconferencing. However, the small mass of the robot, the fact that it is held by an assistant on the patient's body and the patient's physiological movements cause disturbances in the position of the probe ; this thus can generate a loss of the region of interest of the organ being under investigation during the teleoperated medical act. This thesis work focuses on the development of a visual servoing approach based on 2D ultrasound image moments. 2D moments calculation is based on the contour points of the image section of interest, therefore an image-processing algorithm is needed to effectively detect and follow the contour of interest in motion. For this reason, a parametric active contour method based on Fourier descriptors is presented. The control laws, corresponding to three independent autonomous tasks to search and maintain the visibility of an organ within a given ultrasound plane during the tele-operated medical act are implemented and validated on robotic Platform Project ANR Prosit.RENNES1-Bibl. électronique (352382106) / SudocSudocFranceF

  • Commande d'un robot de télé-échographie par asservissement visuel
    HAL CCSD, 2013
    Co-Authors: Li Tao
    Abstract:

    The light weight robots used for robotized tele-echography allow the medical expert to remotely operate a 2D-ultrasound probe. The real-time analysis of the patient's ultrasound images, received via a standard communication link, provides the expert with relevant information to define a diagnosis. The clinical validations of the robotized tele-echography concept show that it is possible to overcome the lack of sonographers in medically isolated sites. The robot probe-holder is usually positioned and held on the patient's body by a paramedical staff based on information provided by the specialist via videoconferencing. However, the small mass of the robot, the fact that it is held by an assistant on the patient's body and the patient's physiological movements cause disturbances in the position of the probe ; this thus can generate a loss of the region of interest of the organ being under investigation during the teleoperated medical act. This thesis work focuses on the development of a visual servoing approach based on 2D ultrasound image moments. 2D moments calculation is based on the contour points of the image section of interest, therefore an image-processing algorithm is needed to effectively detect and follow the contour of interest in motion. For this reason, a parametric active contour method based on Fourier descriptors is presented. The control laws, corresponding to three independent autonomous tasks to search and maintain the visibility of an organ within a given ultrasound plane during the tele-operated medical act are implemented and validated on robotic Platform Project ANR Prosit.Les robots légers utilisés pour la télé-échographie robotisée permettent, à l'expert médical, d'orienter à distance une sonde ultrasonore 2D. L'analyse en temps réel de l'image ultrasonore du patient, reçue via un lien de communication, permet à l'expert de définir un diagnostic. Les validations cliniques du concept de télé-échographie robotisée montrent qu'il est ainsi possible de pallier le manque d'experts en ultrasonographie sur des sites médicalement isolés. Le robot porte-sonde est positionné et maintenu sur le corps du patient par un assistant à partir des informations communiquées par le spécialiste via visioconférence. Cependant, la faible masse du robot, le fait qu'il soit maintenu par un assistant sur le corps du patient et les mouvements physiologiques du patient provoquent des perturbations dans la position de la sonde et engendrent ainsi des pertes des sections d'intérêt des organes étudiés. Les travaux de cette thèse ont consisté à développer une approche par asservissement visuel basé sur les moments d'image ultrasonore 2D. Le calcul des moments 2D étant basé sur les points du contour de la section d'intérêt, un algorithme de traitement d'images efficace est nécessaire pour détecter et suivre le contour d'intérêt en mouvement. Pour cela, une méthode de contour actif paramétrique basée sur les descripteurs de Fourier est présentée. Les lois de commandes correspondant à trois tâches autonomes autorisant la recherche et le maintien de visibilité d'un organe lors de l'acte médical télé-opéré sont implémentées et validées sur la plateforme robotique du projet ANR Prosit

  • Control a robot tele-echography by visual servoing
    2013
    Co-Authors: Li Tao
    Abstract:

    Les robots légers utilisés pour la télé-échographie robotisée permettent, à l'expert médical, d'orienter à distance une sonde ultrasonore 2D. L'analyse en temps réel de l'image ultrasonore du patient, reçue via un lien de communication, permet à l'expert de définir un diagnostic. Les validations cliniques du concept de télé-échographie robotisée montrent qu'il est ainsi possible de pallier le manque d'experts en ultrasonographie sur des sites médicalement isolés. Le robot porte-sonde est positionné et maintenu sur le corps du patient par un assistant à partir des informations communiquées par le spécialiste via visioconférence. Cependant, la faible masse du robot, le fait qu'il soit maintenu par un assistant sur le corps du patient et les mouvements physiologiques du patient provoquent des perturbations dans la position de la sonde et engendrent ainsi des pertes des sections d'intérêt des organes étudiés. Les travaux de cette thèse ont consisté à développer une approche par asservissement visuel basé sur les moments d'image ultrasonore 2D. Le calcul des moments 2D étant basé sur les points du contour de la section d'intérêt, un algorithme de traitement d'images efficace est nécessaire pour détecter et suivre le contour d'intérêt en mouvement. Pour cela, une méthode de contour actif paramétrique basée sur les descripteurs de Fourier est présentée. Les lois de commandes correspondant à trois tâches autonomes autorisant la recherche et le maintien de visibilité d'un organe lors de l'acte médical télé-opéré sont implémentées et validées sur la plateforme robotique du projet ANR Prosit.The light weight robots used for robotized tele-echography allow the medical expert to remotely operate a 2D-ultrasound probe. The real-time analysis of the patient's ultrasound images, received via a standard communication link, provides the expert with relevant information to define a diagnosis. The clinical validations of the robotized tele-echography concept show that it is possible to overcome the lack of sonographers in medically isolated sites. The robot probe-holder is usually positioned and held on the patient's body by a paramedical staff based on information provided by the specialist via videoconferencing. However, the small mass of the robot, the fact that it is held by an assistant on the patient's body and the patient's physiological movements cause disturbances in the position of the probe ; this thus can generate a loss of the region of interest of the organ being under investigation during the teleoperated medical act. This thesis work focuses on the development of a visual servoing approach based on 2D ultrasound image moments. 2D moments calculation is based on the contour points of the image section of interest, therefore an image-processing algorithm is needed to effectively detect and follow the contour of interest in motion. For this reason, a parametric active contour method based on Fourier descriptors is presented. The control laws, corresponding to three independent autonomous tasks to search and maintain the visibility of an organ within a given ultrasound plane during the tele-operated medical act are implemented and validated on robotic Platform Project ANR Prosit

Istrate Marcel - One of the best experts on this subject based on the ideXlab platform.

  • photovoltaic power plant on the enered research Platform of the electrical engineering faculty of iasi
    International Conference and Exposition on Electrical and Power Engineering, 2016
    Co-Authors: Machido Dragoslucia, Istrate Marcel
    Abstract:

    The solar energy is no longer a promise, but a certainty, as nowadays is widely used in both photovoltaic and thermal conversion. Consequently, at the Electrical Engineering Faculty of Iasi, Romania, a photovoltaic power plant of 9 kW plant was installed through the ENERED research Platform Project. The main goal of the Project was to develop a research Platform on the efficient and sustainable energy. In this paper the photovoltaic power plant will be presented along with some data regarding the electricity coverage levels while supplying several consumers with different operating regimes.

  • photovoltaic power plant on the enered research Platform of the electrical engineering faculty of iasi
    International Conference and Exposition on Electrical and Power Engineering, 2016
    Co-Authors: Machidon Dragoslucian, Istrate Marcel
    Abstract:

    The solar energy is no longer a promise, but a certainty, as nowadays is widely used in both photovoltaic and thermal conversion. Consequently, at the Electrical Engineering Faculty of Iasi, Romania, a photovoltaic power plant of 9 kW plant was installed through the ENERED research Platform Project. The main goal of the Project was to develop a research Platform on the efficient and sustainable energy. In this paper the photovoltaic power plant will be presented along with some data regarding the electricity coverage levels while supplying several consumers with different operating regimes.

São João Ricardo - One of the best experts on this subject based on the ideXlab platform.

  • Virtual leadership in intercontinental Projects:a case study of the University of Santiago lms Platform as an educational strategy
    Panevėžio kolegija University of Applied Sciences, 2019
    Co-Authors: Samartinho João, São João Ricardo
    Abstract:

    The implementation of a Learning Managment System (LMS) Platform as a support to the course units of the degrees held at the University of Santiago (US), in Cape Verde, acts both as a Project and an intercontinental challenge of educational and pedagogical exploration resources. At the same time it is an enhancer and bounding element of the education in an insular country formed by ten volcanic islands in the central region of the Atlantic Ocean, 570 kilometers from the western African coast. Due to the geographical dispersion of students, teachers and skilled technicians, distance teaching plays a major role in training, preparing an updating new professionals in different and diverse fields offered by the US. The implementation of an LMS Platform Project, which began in 2017 settles in a protocol of cooperation between two higher education institutions: the Polytechnic Institute of Santarém (IPSantarém) in Portugal and the University of Santiago located in the Santiago Island in Cape Verde. The Project consists on development and personalization of a LMS Platform to support teaching (degrees and masters) in e-Learning and blended-Learning models. The Platform, a constant work in progress, is hosted on the IPSantarém server and the needed training for teachers and skilled technicians to use it correctly has been given through blended-Learning with face-to-face sessions in Cape Verde. Regarding the stages of conception, implementation, operationalization and development of the US LMS Platform, the priority is bringing institutions closer by fostering bonds of cooperation, a growing and consistent trust based on effective dialogue supervised by technical teams that promote the training of teachers and IT staff by exploring e-Learning and blended-Learning environments present in the Platform. This virtual leadership strategy is based on the 3Cs rule (Communication, Confidence and Coordination), Samartinho et al. (2014). It leads to a strategic synergy between two institutions where language and cultural bonds between the two peoples are clear. To enhance success the Project adopts a model based on the role of the virtual leader (e-Leader) and his virtual work teams using specific IT tools. This model called ´´Model for the perception of the specific e-leadership skills and features in learning management systems environments´´ was suggested by Samartinho (2014) for global Projects with characteristics and technical constrains identical to the ones here presented. For a better understanding of the Project, a timeline of its development is presented (June 2017 - May 2019). Furthermore, a summary of the failures detected as well of the solutions found will be mentioned. The US LMS Platform is an example of a successful Project regarding implementation, development, training and spreading. It is on an assessment/development stage to ensure all the future training needs in the US degrees and for it to succeed the adopted model will be crucial. This Project is also much benefited from the great commitment of all parts involved. The model used in this Project is now expected to be adopted in future Projects involving institutions from Africa, America and Asia where Portuguese is an official language.info:eu-repo/semantics/publishedVersio

  • Virtual leadership in intercontinental Projects:a case study of the University of Santiago LMS Platform as an educational strategy
    Panevėžio kolegija University of Applied Sciences, 2019
    Co-Authors: Samartinho João, São João Ricardo
    Abstract:

    The implementation of a Learning Management System (LMS) Platform as a support to the course units of the degrees held at the University of Santiago (US), in Cape Verde, acts both as a Project and an intercontinental challenge of educational and pedagogical exploration resources. At the same time it is an enhancer and bounding element of the education in an insular country formed by ten volcanic islands in the central region of the Atlantic Ocean, 570 kilometers from the western African coast. Due to the geographical dispersion of students, teachers and skilled technicians, distance teaching plays a major role in training, preparing an updating new professionals in different and diverse fields offered by the US. The implementation of an LMS Platform Project, which began in 2017 settles in a protocol of cooperation between two higher education institutions: the Polytechnic Institute of Santarém (IPSantarém) in Portugal and the University of Santiago located in the Santiago Island in Cape Verde. The Project consists on development and personalization of a LMS Platform to support teaching (degrees and masters) in e-learning and blended-Learning models. The Platform, a constant work in progress, is hosted on the IPSantarém server and the needed training for teachers and skilled technicians to use it correctly has been given through blended-Learning with face-to-face sessions in Cape Verde. Regarding the stages of conception, implementation, operationalization and development of the US LMS Platform, the priority is bringing institutions closer by fostering bonds of cooperation, a growing and consistent trust based on effective dialogue supervised by technical teams that promote the training of teachers and IT staff by exploring e-Learning and blended-Learning environments present in the Platform. This virtual leadership strategy is based on the 3Cs rule (Communication, Confidence and Coordination), Samartinho et al. (2014). It leads to a strategic synergy between two institutions where language and cultural bonds between the two peoples are clear. To enhance success the Project adopts a model based on the role of the virtual leader (e-Leader) and his virtual work teams using specific IT tools. This model called ´Model for the perception of the specific e-leadership skills and features in learning management systems environments´ was suggested by Samartinho (2014) for global Projects with characteristics and technical constrains identical to the ones here presented. For a better understanding of the Project, a timeline of its development is presented (June 2017 - May 2019). Furthermore, a summary of the failures detected as well of the solutions found will be The US LMS Platform is an example of a successful Project regarding implementation, development, training and spreading. It is on an assessment/development stage to ensure all the future training needs in the US degrees and for it to succeed the adopted model will be crucial. This Project is also much benefited from the great commitment of all parts involved. The model used in this Project is now expected to be adopted in future Projects involving institutions from Africa, America and Asia where Portuguese is an official language.info:eu-repo/semantics/publishedVersio

Vieyres Pierre - One of the best experts on this subject based on the ideXlab platform.

  • Commande d'un robot de télé-échographie par asservissement visuel
    2013
    Co-Authors: Li Tao, Krupa Alexandre, Vieyres Pierre
    Abstract:

    Les robots légers utilisés pour la télé-échographie robotisée permettent, à l'expert médical, d'orienter à distance une sonde ultrasonore 2D. L'analyse en temps réel de l'image ultrasonore du patient, reçue via un lien de communication, permet à l'expert de définir un diagnostic. Les validations cliniques du concept de télé-échographie robotisée montrent qu'il est ainsi possible de pallier le manque d'experts en ultrasonographie sur des sites médicalement isolés. Le robot porte-sonde est positionné et maintenu sur le corps du patient par un assistant à partir des informations communiquées par le spécialiste via visioconférence. Cependant, la faible masse du robot, le fait qu'il soit maintenu par un assistant sur le corps du patient et les mouvements physiologiques du patient provoquent des perturbations dans la position de la sonde et engendrent ainsi des pertes des sections d'intérêt des organes étudiés. Les travaux de cette thèse ont consisté à développer une approche par asservissement visuel basé sur les moments d'image ultrasonore 2D. Le calcul des moments 2D étant basé sur les points du contour de la section d'intérêt, un algorithme de traitement d'images efficace est nécessaire pour détecter et suivre le contour d'intérêt en mouvement. Pour cela, une méthode de contour actif paramétrique basée sur les descripteurs de Fourier est présentée. Les lois de commandes correspondant à trois tâches autonomes autorisant la recherche et le maintien de visibilité d'un organe lors de l'acte médical télé-opéré sont implémentées et validées sur la plateforme robotique du projet ANR Prosit.The light weight robots used for robotized tele-echography allow the medical expert to remotely operate a 2D-ultrasound probe. The real-time analysis of the patient's ultrasound images, received via a standard communication link, provides the expert with relevant information to define a diagnosis. The clinical validations of the robotized tele-echography concept show that it is possible to overcome the lack of sonographers in medically isolated sites. The robot probe-holder is usually positioned and held on the patient's body by a paramedical staff based on information provided by the specialist via videoconferencing. However, the small mass of the robot, the fact that it is held by an assistant on the patient's body and the patient's physiological movements cause disturbances in the position of the probe ; this thus can generate a loss of the region of interest of the organ being under investigation during the teleoperated medical act. This thesis work focuses on the development of a visual servoing approach based on 2D ultrasound image moments. 2D moments calculation is based on the contour points of the image section of interest, therefore an image-processing algorithm is needed to effectively detect and follow the contour of interest in motion. For this reason, a parametric active contour method based on Fourier descriptors is presented. The control laws, corresponding to three independent autonomous tasks to search and maintain the visibility of an organ within a given ultrasound plane during the tele-operated medical act are implemented and validated on robotic Platform Project ANR Prosit.RENNES1-Bibl. électronique (352382106) / SudocSudocFranceF

Samartinho João - One of the best experts on this subject based on the ideXlab platform.

  • Virtual leadership in intercontinental Projects:a case study of the University of Santiago lms Platform as an educational strategy
    Panevėžio kolegija University of Applied Sciences, 2019
    Co-Authors: Samartinho João, São João Ricardo
    Abstract:

    The implementation of a Learning Managment System (LMS) Platform as a support to the course units of the degrees held at the University of Santiago (US), in Cape Verde, acts both as a Project and an intercontinental challenge of educational and pedagogical exploration resources. At the same time it is an enhancer and bounding element of the education in an insular country formed by ten volcanic islands in the central region of the Atlantic Ocean, 570 kilometers from the western African coast. Due to the geographical dispersion of students, teachers and skilled technicians, distance teaching plays a major role in training, preparing an updating new professionals in different and diverse fields offered by the US. The implementation of an LMS Platform Project, which began in 2017 settles in a protocol of cooperation between two higher education institutions: the Polytechnic Institute of Santarém (IPSantarém) in Portugal and the University of Santiago located in the Santiago Island in Cape Verde. The Project consists on development and personalization of a LMS Platform to support teaching (degrees and masters) in e-Learning and blended-Learning models. The Platform, a constant work in progress, is hosted on the IPSantarém server and the needed training for teachers and skilled technicians to use it correctly has been given through blended-Learning with face-to-face sessions in Cape Verde. Regarding the stages of conception, implementation, operationalization and development of the US LMS Platform, the priority is bringing institutions closer by fostering bonds of cooperation, a growing and consistent trust based on effective dialogue supervised by technical teams that promote the training of teachers and IT staff by exploring e-Learning and blended-Learning environments present in the Platform. This virtual leadership strategy is based on the 3Cs rule (Communication, Confidence and Coordination), Samartinho et al. (2014). It leads to a strategic synergy between two institutions where language and cultural bonds between the two peoples are clear. To enhance success the Project adopts a model based on the role of the virtual leader (e-Leader) and his virtual work teams using specific IT tools. This model called ´´Model for the perception of the specific e-leadership skills and features in learning management systems environments´´ was suggested by Samartinho (2014) for global Projects with characteristics and technical constrains identical to the ones here presented. For a better understanding of the Project, a timeline of its development is presented (June 2017 - May 2019). Furthermore, a summary of the failures detected as well of the solutions found will be mentioned. The US LMS Platform is an example of a successful Project regarding implementation, development, training and spreading. It is on an assessment/development stage to ensure all the future training needs in the US degrees and for it to succeed the adopted model will be crucial. This Project is also much benefited from the great commitment of all parts involved. The model used in this Project is now expected to be adopted in future Projects involving institutions from Africa, America and Asia where Portuguese is an official language.info:eu-repo/semantics/publishedVersio

  • Virtual leadership in intercontinental Projects:a case study of the University of Santiago LMS Platform as an educational strategy
    Panevėžio kolegija University of Applied Sciences, 2019
    Co-Authors: Samartinho João, São João Ricardo
    Abstract:

    The implementation of a Learning Management System (LMS) Platform as a support to the course units of the degrees held at the University of Santiago (US), in Cape Verde, acts both as a Project and an intercontinental challenge of educational and pedagogical exploration resources. At the same time it is an enhancer and bounding element of the education in an insular country formed by ten volcanic islands in the central region of the Atlantic Ocean, 570 kilometers from the western African coast. Due to the geographical dispersion of students, teachers and skilled technicians, distance teaching plays a major role in training, preparing an updating new professionals in different and diverse fields offered by the US. The implementation of an LMS Platform Project, which began in 2017 settles in a protocol of cooperation between two higher education institutions: the Polytechnic Institute of Santarém (IPSantarém) in Portugal and the University of Santiago located in the Santiago Island in Cape Verde. The Project consists on development and personalization of a LMS Platform to support teaching (degrees and masters) in e-learning and blended-Learning models. The Platform, a constant work in progress, is hosted on the IPSantarém server and the needed training for teachers and skilled technicians to use it correctly has been given through blended-Learning with face-to-face sessions in Cape Verde. Regarding the stages of conception, implementation, operationalization and development of the US LMS Platform, the priority is bringing institutions closer by fostering bonds of cooperation, a growing and consistent trust based on effective dialogue supervised by technical teams that promote the training of teachers and IT staff by exploring e-Learning and blended-Learning environments present in the Platform. This virtual leadership strategy is based on the 3Cs rule (Communication, Confidence and Coordination), Samartinho et al. (2014). It leads to a strategic synergy between two institutions where language and cultural bonds between the two peoples are clear. To enhance success the Project adopts a model based on the role of the virtual leader (e-Leader) and his virtual work teams using specific IT tools. This model called ´Model for the perception of the specific e-leadership skills and features in learning management systems environments´ was suggested by Samartinho (2014) for global Projects with characteristics and technical constrains identical to the ones here presented. For a better understanding of the Project, a timeline of its development is presented (June 2017 - May 2019). Furthermore, a summary of the failures detected as well of the solutions found will be The US LMS Platform is an example of a successful Project regarding implementation, development, training and spreading. It is on an assessment/development stage to ensure all the future training needs in the US degrees and for it to succeed the adopted model will be crucial. This Project is also much benefited from the great commitment of all parts involved. The model used in this Project is now expected to be adopted in future Projects involving institutions from Africa, America and Asia where Portuguese is an official language.info:eu-repo/semantics/publishedVersio