Now showing items 21-26 of 26

  • Operators to calculate the derivative of digital signals 

    Ferrer-Arnau, Lluís; Mon González, Juan; Parisi Baradad, Vicenç (SARTI, 2013)
    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 ...
  • Otoliths identifiers using image contours EFD 

    Reig Bolano, Ramon; Marti Puig, Pere; Rodríguez González, Sara; Bajo Pérez, Javier; Parisi Baradad, Vicenç; Lombarte, A. (Springer Berlín / Heidelberg, 2010-09)
    Article
    Restricted access - publisher's policy
    In this paper we analyze the characteristics of an experimental otolith identification system based on image contours described with Elliptical Fourier Descriptors (EFD). Otoliths are found in the inner ear of fishes. ...
  • Radix-R FFT and IFFT factorizations for parallel implementation 

    Marti Puig, Pere; Reig Bolano, Ramon; Parisi Baradad, Vicenç (2009)
    Article
    Restricted access - publisher's policy
    Two radix-R regular interconnection pattern families of factorizations for both the FFT and the IFFT -also known as parallel or Pease factorizations- are reformulated and presented. Number R is any power of 2 and N, the ...
  • Satellite image georegistration from coast-line codification 

    Reig Bolaño, Ramon; Parisi Baradad, Vicenç; García-Ladona, Emilio; Martí Puig, Pere (SARTI (Technological Development Centre of Remote Acquisition and Data processing Systems), 2008-04-08T14:22:11Z)
    Article
    Open Access
    This paper presents a contour-based approach for automatic image registration in satellite oceanography. Accurate image georegistration is an essential step to increase the eff ectiveness of all the image processing ...
  • Surface parameterization for smooth 3D shapes 

    Marti Puig, Pere; Reig Bolano, Ramon; Manjabacas, A.; Ferrer Arnau, Luis Jorge; Parisi Baradad, Vicenç; Lombarte, A. (2011)
    Conference report
    Restricted access - publisher's policy
    In this work we present a new method for compacting data from 3D shapes by extracting a 3D characteristic curve that we call a 3D signature. The 3D signature obtained preserves almost all the morphological shape ...