Ara es mostren els items 21-40 de 45

    • Ear-Accessories Inpainting Using Convolutional Neural Networks 

      Oleart Playa, Nil (Universitat Politècnica de Catalunya, 2017)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat
    • End-to-End photoplethysmography-based biometric authentication system by using deep neural networks 

      Cortès Sebastià, Guillem (Universitat Politècnica de Catalunya, 2018-06)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Telefónica I+D
      Whilst research efforts have traditionally focused on Electrocardiographic (ECG) signals and handcrafted features as potential biometric traits, few works have explored systems based on the raw photoplethysmogram (PPG) ...
    • Estimate of influenza cases using generalized linear, additive and mixed models 

      Oviedo de La Fuente, Manuel; Domínguez García, Angela; Muñoz Gracia, María del Pilar (Landes Bioscience, 2015-01-01)
      Article
      Accés obert
      We investigated the relationship between reported cases of influenza in Catalonia (Spain). Covariates analyzed were: population, age, data of report of influenza, and health region during 2010-2014 using data obtained from ...
    • Estimation of spatial sampling effort based on presence-only data over a class of species 

      Fernández Martínez, Daniel; Nakamura Savoy, Miguel (2015-03-10)
      Article
      Accés restringit per política de l'editorial
      Sampling bias contained in data of biological surveys is very common. Bias is clearly a function of roads, cities, rivers, or other physical features that determines accessibility of collectors, and many data sets of species ...
    • Estudi de les característiques morfològiques del segment anterior de l'ull en nens de 8-9 anys 

      Sala Damunt, Elisa (Universitat Politècnica de Catalunya, 2014-01-30)
      Treball Final de Grau
      Accés obert
      Examinar les característiques biomètriques del segment anterior ocular en una mostra d’infants caucàsics, amb la finalitat de conèixer si els paràmetres obtinguts en aquesta mostra tenen relació amb el gènere, i comparar-los ...
    • Estudio de adaptación de un sistema de reconocimiento biométrico en ATMs 

      Murias Rigual, Marta (Universitat Politècnica de Catalunya, 2016-01)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      “Estudio de adaptación de un sistema de reconocimiento biométrico en ATMs” es un proyecto en el ámbito de la física aplicada a la óptica con la intención de encontrar una solución al problema propuesto de implementar un ...
    • Estudio de la influencia de la dilatación pupilar en los parámetros oculares evaluados mediante biometría óptica 

      Salas Fandos, Olga (Universitat Politècnica de Catalunya, 2016-02)
      Projecte Final de Màster Oficial
      Accés obert
      Aquest estudi pretén analitzar la influència de la dilatació pupil·lar farmacològica amb Tropicamida a l'1% en el càlcul final de la potència de la lent intraocular per implantar després de la cirurgia de cataractes (LIO). ...
    • Exact inference for Hardy-Weinberg proportions with missing genotypes: single and multiple imputation 

      Graffelman, Jan; Nelson, S.; Gogarten, S.M.; Weir, B.S. (2015-09-15)
      Article
      Accés obert
      This paper addresses the issue of exact-test based statistical inference for Hardy-Weinberg equilibrium in the presence of missing genotype data. Missing genotypes often are discarded when markers are tested for Hardy-Weinberg ...
    • Face recognition in controlled environments using multiple images 

      Gómez Martil, José (Universitat Politècnica de Catalunya, 2009-03)
      Projecte/Treball Final de Carrera
      Accés obert
      Our objective is the design of a face recognition system for its use in controlled environments. For that reason, different tasks will be performed, that chronologically can be stated as: The study of the basis of pattern ...
    • Flexible biometric online speaker-verification system implemented on FPGA using vector floating-point units 

      Cantó Navarro, Enrique; López García, Mariano; Ramos Lara, Rafael Ramón; Sánchez Reíllo, Raúl (2014-12-01)
      Article
      Accés obert
      This paper presents the implementation of a speaker-verification system on field programmable gate array. The algorithm is executed by software over an embedded system that includes a MicroBlaze microprocessor connected ...
    • Graphics for relatedness research 

      Galván Femenía, Iván; Graffelman, Jan; Barceló Vidal, Carles (Wiley, 2017-04-03)
      Article
      Accés obert
      Studies of relatedness have been crucial in molecular ecology over the last decades. Good evidence of this is the fact that studies of population structure, evolution of social behaviours, genetic diversity and quantitative ...
    • Human iris biometry 

      Largo Castellà, Juan Carlos (Universitat Politècnica de Catalunya, 2016-07-12)
      Treball Final de Grau
      Accés obert
      This project exposes the implementation of an iris based biometric system, from the theoretical basis to the implementation of it by examining different types of methods described in other documents. The human iris structure ...
    • Integración de biometría de voz en un sistema de pago por teléfono: verificación del locutor dependiente del texto 

      Masana de Bouffard, Judit (Universitat Politècnica de Catalunya, 2016-09)
      Treball Final de Grau
      Accés obert
      The aim of this project is obtain a text-dependent speaker verification system using speech biometrics. We recover software created by the Department of Signal and Communications Theory, which had been modified. It has ...
    • Integration of speech biometrics in a phone payment system: text-independent speaker verification 

      Barón Garcia, Anna (Universitat Politècnica de Catalunya, 2016-09)
      Treball Final de Grau
      Accés obert
      Nowadays, the integration of biometrics in security systems is a prominent research and application field. Also, it is clear that speech is the most common form of communication, which makes a swell candidate. While using ...
    • Low cost fingerprint matching system for biometric identification 

      José Torra, Ferran (Universitat Politècnica de Catalunya, 2015-06)
      Treball Final de Grau
      Accés obert
      The objective of this project is to develop a system required by the Doctors Without Borders NGO that consists in managing the medical histories of a refugee camp in an easier way. Specifically, this system was already ...
    • Measurement error in epidemiologic studies of air pollution based on land-use regression models 

      Basagaña Flores, Xavier; Aguilera, Inmaculada; Rivera, Marcela; Agis Cherta, David; Foraster, María; Marrugat, Jaume; Elosua, Roberto; Künzli, Nino (2013-10-15)
      Article
      Accés obert
      Land-use regression (LUR) models are increasingly used to estimate air pollution exposure in epidemiologic studies. These models use air pollution measurements taken at a small set of locations and modeling based ...
    • New approaches for iris boundary localization 

      Pérez, Dídac; Fernández, Carles; Segura, Carlos; Hernando Pericás, Francisco Javier (Universidad de las Palmas de Gran Canarias, 2012)
      Text en actes de congrés
      Accés obert
      Iris segmentation is the most determining factor in iris biometrics, which has traditionally assumed rigid constrained environments. In this work, a novel method that covers the localization of the pupillaty and limbic ...
    • Online signature verification systems on a low-cost FPGA 

      Cantó Navarro, Enrique; Ramos Lara, Rafael Ramón; López García, Mariano (2022-01-01)
      Article
      Accés obert
      This paper describes three different approaches for the implementation of an online signature verification system on a low-cost FPGA. The system is based on an algorithm, which operates on real numbers using the double-precision ...
    • Precision and agreement of axial length in paediatric population measured with MYAH and AL-Scan biometers 

      Aldaba Arévalo, Mikel; Ochando Olcina, Pablo; Vila Vidal, Núria; Viñuela Navarro, Valldeflors; Guisasola València, Laura; Pérez Corral, Juan Enrique (Taylor & Francis Group, 2023-11-13)
      Article
      Accés restringit per política de l'editorial
      Clinical relevance Measuring axial length is key in the field of myopia development and control. Hence, the precision and agreement of commercially available biometers is of vital interest to understand their variability ...
    • Predicción de los niveles de turbidez en el río Llobregat usando modelos vectoriales autoregresivos VAR (p) 

      Acosta Hernandez, Lesly Fraysury (Universitat Politècnica de Catalunya, 2023-10-16)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
      Se examina la parte teórica del método que actualmente se esta usando para predecir la turbidez del río Llobregat con modelos de series de tiempo multivariadas VAR(p), también se evalúa la metodología de los modelos VAR ...