Ara es mostren els items 1-20 de 49

  • Adaptive segmentation and mask-specific Sobolev inpainting of specular highlights for endoscopic images 

    Alsaleh, Samar M.; Avilés Rivero, Angélica; Sobrevilla Frisón, Pilar; Casals Gelpi, Alicia; Hahn, James K. (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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    Minimally invasive surgical and diagnostic systems rely on endoscopic images of internal organs to assist medical tasks. Specular highlights are common on those images due to the strong reflectivity of the mucus layer on ...
  • Adaptive walking assistance based on human-orthosis interaction 

    Rajasekaran, Vijaykumar; Aranda López, Juan; Casals Gelpi, Alicia (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Text en actes de congrés
    Accés obert
    An assistive rehabilitation strategy for a lower-limb wearable robot is proposed and evaluated. The control strategy monitors the human-orthosis interaction torques and modifies the orthosis operation mode depending on its ...
  • A multi-robot cooperation strategy for dexterous task oriented teleoperation 

    Hernansanz Prats, Alberto; Casals Gelpi, Alicia; Amat Girbau, Josep (2015-06-01)
    Article
    Accés obert
    The use of multiple robots working cooperatively in a redundant way offers new possibilities in the execution of complex tasks in dynamic workspaces. The aim of this work is to increase the range of applicability of ...
  • An adaptive control strategy for postural stability using a wearable robot 

    Rajasekaran, Vijaykumar; Aranda López, Juan; Casals Gelpi, Alicia; Pons, Jose Luis (2015-11)
    Article
    Accés obert
    Wearable robots are expected to expand the use of robotics in rehabilitation since they can widen the assistance application context. An important aspect of a rehabilitation therapy, in terms of lower extremity assistance, ...
  • Analisis de la señal del centro de presiones mediante auto-informacion mutua: Test con ojos abiertos 

    Galicia, Berenice; Vallverdú Ferrer, Montserrat; Peydro, Francisca; Casals Gelpi, Alicia (2010)
    Text en actes de congrés
    Accés obert
  • An approach for physiological motion compensation in robotic-assisted cardiac surgery 

    Avilés Rivero, Angélica Ivone; Sobrevilla Frisón, Pilar; Casals Gelpi, Alicia (2014-11-14)
    Article
    Accés obert
    The lack of physiological motion compensation is a major problem in robotic-assisted cardiac surgery. Since the heart is beating while the surgeon carried out the procedure, dexterity of the surgeon’s and precision are ...
  • A new relational geometric feature for human action recognition 

    Vinagre Ruiz, Manuel; Aranda López, Juan; Casals Gelpi, Alicia (Springer, 2015-01)
    Article
    Accés restringit per política de l'editorial
    Pose-based features have demonstrated to outperform low-levelappearance features in human action recognition. New RGB-D cameras provide locations of human joints with which geometric correspondences can be easily calculated. ...
  • An interactive robotic system for human assistance in domestic environments 

    Vinagre Ruiz, Manuel; Aranda López, Juan; Casals Gelpi, Alicia (2014)
    Article
    Accés restringit per política de l'editorial
    This work introduces an interactive robotic system for assistance, conceived to tackle some of the challenges that domestic environments impose. The system is organized into a network of heterogeneous components that share ...
  • A recurrent convolutional neural network approach for sensorless force estimation in robotic surgery 

    Marbán González, Arturo; Srinivasan, Vignesh; Samek, Wojciech; Fernández Ruzafa, José; Casals Gelpi, Alicia (2019-04)
    Article
    Accés restringit per política de l'editorial
    Providing force feedback as relevant information in current Robot-Assisted Minimally Invasive Surgery systems constitutes a technological challenge due to the constraints imposed by the surgical environment. In this context, ...
  • A recurrent neural network approach for 3d vision-based force estimation 

    Avilés Rivero, Angélica Ivone; Marbán González, Arturo; Sobrevilla Frisón, Pilar; Casals Gelpi, Alicia; Fernández Ruzafa, José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Text en actes de congrés
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    Robotic-assisted minimally invasive surgery has demonstrated its benefits in comparison with traditional procedures. However, one of the major drawbacks of current robotic system approaches is the lack of force feedback. ...
  • Autoadaptive neurorehabilitation robotic system assessment with a post-stroke patient 

    Morales Vidal, Ricardo; Badesa Clemente, Francisco Javier; García Aracil, Nicolás; Aranda López, Juan; Casals Gelpi, Alicia (2015-01-01)
    Article
    Accés restringit per política de l'editorial
    This paper presents a new rehabilitation system that is able to adapt its performance to patient's psychophysiological state during the execution of robotic rehabilitation tasks. Using this approach, the motivation and ...
  • Automatic and robust single-camera specular highlight removal in cardiac images 

    Alsaleh, Samar M.; Avilés Rivero, Angélica; Sobrevilla Frisón, Pilar; Casals Gelpi, Alicia; Hahn, James K. (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    In computer-assisted beating heart surgeries, accurate tracking of the heart’s motion is of huge importance and there is a continuous need to eliminate any source of error that might disturb the tracking process. One source ...
  • Compliant gait assistance triggered by user intention 

    Rajasekaran, Vijaykumar; Aranda López, Juan; Casals Gelpi, Alicia (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Text en actes de congrés
    Accés obert
    An automatic gait initialization strategy based on user intention sensing in the context of rehabilitation with a lower-limb wearable robot is proposed and evaluated. The proposed strategy involves monitoring the human-orthosis ...
  • Control de robots en neurorehabilitación: desde sensores neurales a sensores portables 

    Casals Gelpi, Alicia; Aranda López, Juan; Muñoz Morgado, Luis Miguel; Vinagre Ruiz, Manuel; Martínez Velasco, Antonio Benito; Jané Campos, Raimon; Amat Girbau, Josep (2017-07-06)
    Report de recerca
    Accés obert
    Las interfaces BCI tienen ya un cierto grado de desarrollo en el ámbito del diagnóstico y de la interacción persona-computador, sin embargo su aplicación al control de dispositivos robóticos está todavía muy limitado debido ...
  • Design of a 3-DoF joint system with dynamic servo-adaptation in orthotic applications 

    Amigo, Luis; Casals Gelpi, Alicia; Amat Girbau, Josep (2011)
    Text en actes de congrés
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    Most exoskeleton designs rely on structures and mechanical joints that do not guarantee the right match between the orthosis and the user. This paper proposes a virtual joint model based on three active degrees of freedom ...
  • Detection of movements with attention or distraction to the motor task during robot-assisted passive movements of the upper limb 

    Antelis, Javier M.; Montesano, Luis; Giralt Ludevid, Xavier; Casals Gelpi, Alicia; Minguez, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Robot-assisted rehabilitation therapies usually focus on physical aspects rather than on cognitive factors. However, cognitive aspects such as attention, motivation, and engagement play a critical role in motor learning ...
  • Diseño de una arquitectura de ortesis adaptativa y estudio de la personalización de su grado de asistencia 

    Amigo, Luis; Giralt Ludevid, Xavier; Fernández, Quim; Casals Gelpi, Alicia; Amat Girbau, Josep (2013)
    Text en actes de congrés
    Accés obert
    Uno de los principales objetivos de las terapias de rehabilitación del miembro superior asistidas por robots es incrementar la recuperación funcional al finalizar la terapia y a su vez disminuir el tiempo de esta recuperación, ...
  • Estimating position & velocity in 3D space from monocular video sequences using a deep neural network 

    Marbán González, Arturo; Srinivasan, Vignesh; Samek, Wojciech; Fernández Ruzafa, José; Casals Gelpi, Alicia (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Text en actes de congrés
    Accés obert
    This work describes a regression model based on Convolutional Neural Networks (CNN) and Long-Short Term Memory (LSTM) networks for tracking objects from monocular video sequences. The target application being pursued is ...
  • Evaluating spatial characteristics of upper-limb movements from EMG signals 

    Urra, Oiane; Casals Gelpi, Alicia; Jané Campos, Raimon (Springer, 2014)
    Capítol de llibre
    Accés obert
    Stroke is a major cause of disability, usually causing hemiplegic damage on the motor abilities of the patient. Stroke rehabilitation seeks restoring normal motion on the affected limb. However, ‘normality’ of movements ...
  • Exploring improvements on the complexity-performance ratio and usability of surgical robots 

    Casals Gelpi, Alicia; Frigola Bourlon, Manel; Bergés Martín, Eduard; Amat Girbau, Josep (2014)
    Text en actes de congrés
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    Surgical robots are endowed with valuable features that allow surgeons mproving their work in terms of accuracy, quality, efficiency and liability. Tremor reduction, scaled movements, virtual fixtures, pre and intraoperative ...