Now showing items 1-8 of 8

  • A comparative study between Elliptic Fourier and B-spline descriptors for object contour representation 

    Ferrer Arnau, Luis Jorge; Parisi Baradad, Vicenç; Soria Pérez, José Antonio; Nasreddine, Kamal; Benzinou, Abdesslam (2014)
    Conference report
    Restricted access - publisher's policy
    In this work, a comparative study between Elliptic Fourier and B-spline descriptors is carried out for comparing their efficiency in characterizing the contour shape of image objects. In both cases, the goal is to obtain ...
  • A new otolith image contour descriptor based on partial reflection 

    Reig Bolano, Ramon; Marti Puig, Pere; Lombarte, A.; Soria Pérez, José Antonio; Parisi Baradad, Vicenç (2010-12)
    Article
    Restricted access - publisher's policy
    In this paper we propose a new contour descriptor for reconstructing fish otolith contours that uses half the number of coefficients needed by the classical elliptical Fourier descriptors (EFDs) for the same accuracy. ...
  • An introduction to fault diagnosis of permanent magnet synchronous machines in master's degree courses 

    Riba Ruiz, Jordi-Roger; García Espinosa, Antonio; Romeral Martínez, José Luis; Ortega Redondo, Juan Antonio (John Wiley & Sons, 2010-08-16)
    Article
    Restricted access - publisher's policy
    Early fault detection and diagnosis of high-performance electric motors has been an active area of research for the past two decades. This work presents a practical session that facilitates instructing students in this ...
  • Caracterización de señales de vibración no estacionarias en el dominio conjunto tiempo-frecuencia 

    Flórez Serrano, Elkin Gregorio; Cardona Foix, Salvador; Jordi Nebot, Lluïsa (2011)
    Conference report
    Restricted access - publisher's policy
    El monitoreo de las condiciones de vibración es comúnmente utilizado para incrementar la disponibilidad de las maquinas en general, reduciendo consecuentemente los daños o fallas en las mismas, incrementar su vida útil, ...
  • Detecció del xiulet per la generació de resums en vídeos esportius 

    Sicília Sansi, Sergi (Universitat Politècnica de Catalunya, 2013-02-19)
    Bachelor thesis
    Open Access
    El present document exposa el desenvolupament de l'aplicació del mètode d'Anàlisi de Components Principals per detectar el xiulet de l'àrbitre en el context de l'extracció automàtica d'esdeveniments d'interès en ...
  • Implementation of the parametric representation of the Fourier transform in fabrics 

    Cardenas, L. J.; Cifuentes, L.E; Torres, Y.; Millán Garcia-Varela, M. Sagrario (2007-06)
    Article
    Open Access
  • Otolith shape classification for fish stock discrimination 

    Soria Pérez, José Antonio; Nasreddine, Kamal; Parisi Baradad, Vicenç; Ferrer Arnau, Luis Jorge; Benzinou, Abdesslam (2014)
    Conference report
    Restricted access - publisher's policy
    The shape analysis of otoliths, which are calcified structures in the inner ear of teleostean fishes, is known to be particularly relevant to address species identification and stock discrimination. Generally, scientists ...
  • Static and dynamic amplitude modulation of light in a twisted nematic liquid crystal display 

    Vilardy Ortiz, Juan Manuel; Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2013)
    Conference lecture
    Restricted access - publisher's policy
    A SLM has been experimentally characterized in terms of amplitude modulation versus the gray level distribution (input signal) electronically addressed to the pixelated display in two conditions: input constant with time, ...