Now showing items 41-50 of 50

  • Study of synergy patterns during the execution of stroke rehabilitation exercises 

    Urra, Oiane; Casals Gelpi, Alicia; Jané Campos, Raimon (2014)
    Conference lecture
    Open Access
    Stroke is a leading cause of disability, being motor impairments its major consequence. Despite rehabilitation, more than 60% of the patients report upper-limb motor dysfunction. The design of novel rehabilitation strategies ...
  • Synergy analysis as a tool to design and assess an effective stroke rehabilitation 

    Urra, Oiane; Casals Gelpi, Alicia; Jané Campos, Raimon (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference lecture
    Open Access
    The poor rehabilitation success rate, including the cases of ineffective and detrimental adaptations, make stroke a leading cause of disability. Thus, it is essential to recognize the mechanisms driving healthy motor ...
  • The impact of visual feedback on the motor control of the upper-limb 

    Urra Vicario, Oiane; Casals Gelpi, Alicia; Jané Campos, Raimon (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Open Access
    Stroke is a leading cause of adult disability with upper-limb hemiparesis being one of the most frequent consequences. Given that stroke only affects the paretic arm’s control structure (the set of synergies and activation ...
  • Towards estimating cardiac motion using low-rank representation and topology preservation for ultrafast ultrasound data 

    Avilés Rivero, Angélica; Widlak, Thomas; Casals Gelpi, Alicia; Ammari, Habib (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    Estimation of the cardiac motion is very important in order to detect heart diseases. This work presents a cardiac motion estimation approach using ultrafast ultrasound data. We optimize a variational framework which has ...
  • Towards retrieving force feedback in robotic-assisted surgery: a supervised neuro-recurrent-vision approach 

    Avilés Rivero, Angélica Ivone; Alsaleh, Samar M.; Hahn, James K.; Casals Gelpi, Alicia (Institute of Electrical and Electronics Engineers (IEEE), 2017-07-01)
    Article
    Open Access
    Robotic-assisted minimally invasive surgeries have gained a lot of popularity over conventional procedures as they offer many benefits to both surgeons and patients. Nonetheless, they still suffer from some limitations ...
  • Unconstrained L1-regularized minimization with interpolated transformations for heart motion compensation 

    Avilés Rivero, Angélica Ivone; Sobrevilla Frisón, Pilar; Casals Gelpi, Alicia (2014)
    Conference report
    Restricted access - publisher's policy
    Motion compensation constitutes a challenging issue in minimally invasive beating heart surgery. Since the zone to be repaired has a dynamic behaviour, precision and surgeon's dexterity decrease. In order to solve this ...
  • User intention driven adaptive gait assistance using a wearable exoskeleton 

    Rajasekaran, Vijaykumar; Aranda López, Juan; Casals Gelpi, Alicia (Springer, 2016)
    Article
    Open Access
    A user intention based rehabilitation strategy for a lower-limb wearable robot is proposed and evaluated. The control strategy, which involves monitoring the human-orthosis interaction torques, determines the gait initiation ...
  • V-ANFIS for Dealing with Visual Uncertainty for Force Estimation in Robotic Surgery 

    Avilés Rivero, Angélica Ivone; Alsaleh, Samar M.; Montseny Masip, Eduard; Casals Gelpi, Alicia (Atlantis Press, 2015)
    Conference report
    Open Access
    Accurate and robust estimation of applied forces in Robotic-Assisted Minimally Invasive Surgery is a very challenging task. Many vision-based solutions attempt to estimate the force by measuring the surface deformation ...
  • Virtual Robot: a new teleoperation paradigm for minimally invasive robotic surgery 

    Hernansanz Prats, Alberto; Amat Girbau, Josep; Casals Gelpi, Alicia (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Conference report
    Restricted access - publisher's policy
    This paper presents a novel teleoperation paradigm, the Virtual Robot (VR), focused on facilitating the surgeon tasks in minimally invasive robotic surgery. The VR has been conceived to increase the range of applicability ...
  • Visual feedback facilitates intermanual transfer of the motor control of the dominant arm towards the nondominant arm 

    Urra Vicario, Oiane; Casals Gelpi, Alicia; Jané Campos, Raimon (Sociedad Española de Ingeniería Biomédica (SEIB), 2015)
    Conference lecture
    Restricted access - publisher's policy
    Visual feedback (VF) is applied to recover motor skills after stroke. However, the exact mechanisms underlying the beneficial effects of VF remain unclear, limiting its optimal use in clinical practice. We previously ...