Now showing items 1-18 of 18

    • 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 ...
    • A non-contact camera-based method for respiratory rhythm extraction 

      Mateu Mateus, Marc; Guede Fernández, Federico; Rodriguez Ibañez, Noelia; García González, Miguel Ángel; Ramos Castro, Juan José; Fernández Chimeno, Mireya (2021-04)
      Article
      Open Access
      The aim of this work is to present a non-contact video-based method for respiratory rhythm extraction. The method makes use of a consumer-grade RGB camera, and it is based on computer vision algorithms to detect and track ...
    • A photoplethysmography smartphone-based method for heart rate variability assessment: device model and breathing influences 

      Guede Fernández, Federico; Ferrer Mileo, Víctor; Mateu Mateus, Marc; Ramos Castro, Juan José; García González, Miguel Ángel; Fernández Chimeno, Mireya (2020-03)
      Article
      Restricted access - publisher's policy
      A measurement method of heart rate and heart rate variability (HRV) based on smartphone has been developed and validated. The method is based on photoplethysmography (PPG) acquired with the smartphone camera (SPPG). SPPG ...
    • 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 ...
    • 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 ...
    • Camera-based method for respiratory rhythm extraction from a lateral perspective 

      Mateu Mateus, Marc; Guede Fernández, Federico; García González, Miguel Ángel; Ramos Castro, Juan José; Fernández Chimeno, Mireya (Institute of Electrical and Electronics Engineers (IEEE), 2020-08-25)
      Article
      Open Access
      This work proposes a new method based on computer vision algorithms to measure the respiratory rhythm of a subject from a lateral perspective. The proposed algorithm consists on tracking the motion of the intercostal and ...
    • 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
      Open Access
      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 ...
    • Examen Final 

      Guede Fernández, Federico; García González, Miguel Ángel; López, J. M.; Orpella García, Alberto; Pol Fernández, Clemente; Turó Peroy, Antonio (Universitat Politècnica de Catalunya, 2019-01-16)
      Exam
      Restricted access to the UPC academic community
    • Examen Final 

      Bermejo Broto, Sandra; Fernández Chimeno, Mireya; Guede Fernández, Federico; Martín García, Isidro; López González, Juan Miguel; Ortega Villasclaras, Pablo Rafael; Puigdollers i González, Joaquim; Rodríguez Martínez, Ángel; Vargas Drechsler, Manuel; Voz Sánchez, Cristóbal (Universitat Politècnica de Catalunya, 2019-01-15)
      Exam
      Restricted access to the UPC academic community
    • Examen Final 

      Chávez Domínguez, Juan Antonio; García González, Miguel Ángel; Guede Fernández, Federico; López González, Juan Miguel; Ortega Villasclaras, Pablo Rafael; Pol Fernández, Clemente (Universitat Politècnica de Catalunya, 2020-06-12)
      Exam
      Restricted access to the UPC academic community
    • 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 ...