Now showing items 1-12 of 12

  • Accuracy of heart rate variability estimation by photoplethysmography using an smartphone : processing optimization and fiducial point selection 

    Ferrer Mileo, Víctor; Guede Fernández, Federico; Fernández Chimeno, Mireya; Ramos Castro, Juan José; García González, Miguel Ángel (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Open Access
    This work compares several fiducial points to detect the arrival of a new pulse in a photoplethysmographic signal using the built-in camera of smartphones or a photoplethysmograph. Also, an optimization process for ...
  • A methodology to quantify the differences between alternative methods of heart rate variability measurement 

    García González, Miguel Ángel; Fernández Chimeno, Mireya; Guede Fernández, Federico; Ferrer Mileo, Víctor; Argelagós Palou, Ariadna; Álvarez Gómez, Laura; Parrado Romero, Eva; Moreno Sánchez, Jordi; Capdevila, Lluis; Ramos Castro, Juan José (Institute of Physics (IOP), 2015-12-14)
    Article
    Open Access
    This work proposes a systematic procedure to report the differences between heart rate variability time series obtained from alternative measurements reporting the spread and mean of the differences as well as the agreement ...
  • Assessment of energy expended in physical activity by a smartphone-based system 

    Guede Fernández, Federico; Carbones Fargas, Bernat; Capdevila Ortis, Lluís; García González, Miguel Ángel; Ramos Castro, Juan José; Fernández Chimeno, Mireya (Springer, 2014)
    Conference report
    Restricted access - publisher's policy
    The aim of this paper is to present a smartphone based system to assess daily energy expended in physical activ- ity (PA). Nowadays, sedentary li festyle is increasingly recog- nized as a serious, worldwide public ...
  • Comparison of video-based methods for respiration rhythm measurement 

    Mateu Mateus, Marc; Guede Fernández, Federico; Ferrer Mileo, Víctor; García González, Miguel Ángel; Ramos Castro, Juan José; Fernández Chimeno, Mireya (2019-05-01)
    Article
    Restricted access - publisher's policy
    The aim of this work is to characterize the di erences in the respiratory rhythm obtained through three video based methods by comparing the obtained respiratory signals with the one obtained with the gold standard method ...
  • Driver drowsiness detection based on respiratory signal analysis 

    Guede Fernández, Federico; Fernández Chimeno, Mireya; Ramos Castro, Juan José; García González, Miguel Ángel (Institute of Electrical and Electronics Engineers (IEEE), 2019-06-24)
    Article
    Open Access
    Drowsy driving is a prevalent and serious public health issue that deserves attention. Recent studies estimate around 20% of car crashes have been caused by drowsy drivers. Nowadays, one of the main goals in the development ...
  • La implementación de una aplicación móvil que detecta la somnolencia en la conducción 

    Guede Fernández, Federico (Universitat Politècnica de Catalunya, 2012-01-18)
    Master thesis (pre-Bologna period)
    Open Access
    English: the scope of this project is the design and implementation of a Windows Mobile and Android smartphone application that detects drowsiness while driving by processing of driver respiratory signal. For this, the ...
  • Prototipo de pulsera para la medida de ECG bajo demanda y la medida continua de la onda de pulso 

    Ferrer Mileo, Víctor; Barea Cañizares, Alberto; Mateu Mateus, Marc; Guede Fernández, Federico; Fernández Chimeno, Mireya; Ramos Castro, Juan José; García González, Miguel Ángel (Universitat Politècnica de València, 2016)
    Conference lecture
    Open Access
    El interés en la variabilidad de ritmo cardiaco (HRV) y la estimación de la presión arterial a partir del tiempo de llegada de la onda de pulso (PAT) se ha incrementado exponencialmente en los últimos años debido a los ...
  • Real time heart rate variability assessment from android smartphone camera photoplethysmography: postural and device influences 

    Guede Fernández, Federico; Ferrer Mileo, Víctor; Ramos Castro, Juan José; Fernández Chimeno, Mireya; García González, Miguel Ángel (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Restricted access - publisher's policy
    The aim of this paper is to present a smartphone based system for real-time pulse-to-pulse (PP) interval time series acquisition by frame-to-frame camera image processing. The developed smartphone application acquires ...
  • RR time series comparison obtained by H7 polar sensors or by photoplethysmography using smartphones: breathing and devices influences 

    Mateu Mateus, Marc; Guede Fernández, Federico; García González, Miguel Ángel (Springer, 2014)
    Conference report
    Restricted access - publisher's policy
    This work compares the time series obtained by measuring simultaneously the RR time series with a Polar Sensor and the Pulse to Pulse (PP) time series by using the camera of smartphones. The measured differences ...
  • SeniorFit : Una aplicación móvil para el seguimiento de la adherencia a estilos de vida saludable para gente mayor 

    Guede Fernández, Federico; Ferrer Mileo, Víctor; Fernández Chimeno, Mireya; Ramos Castro, Juan José; García González, Miguel Ángel (Universitat Politècnica de València, 2016)
    Conference lecture
    Open Access
    El envejecimiento progresivo de la población en los países desarrollados exige la promoción de estilos de vida saludables para fomentar el envejecimiento activo. En este trabajo se presenta una aplicación denominada ...
  • Una contribución a la evaluación de la adherencia a hábitos de vida saludables basado en aplicaciones móviles 

    Guede Fernández, Federico (Universitat Politècnica de Catalunya, 2018-09-06)
    Doctoral thesis
    Open Access
    The adherence to a healthy lifestyle plays a key role for increasing life expectancy and living better. The main habits of healthy lifestyle are: physical activity, diet and sleep quality. Nowadays, many people use a ...
  • Using smartphone bases biodevices for analyzing physiological, psychological and behavioral user’s habits 

    Guede Fernández, Federico; Pous Solà, Marc; García González, Miguel Ángel; Capdevila Ortis, Lluís; Ramos Castro, Juan José; Fernández Chimeno, Mireya (SciTePress, 2013)
    Conference lecture
    Open Access
    As a consequence of increasing life expectancy, the promotion of lifestyles that allow aging wellbeing guarantees has acquired great importance in the developed countries. However, the adherence to healthy behaviors in ...