A bivariate model for retinal image identification in lambs

  • Authors:

  • NatíLia Adell;Pedro Puig;Alejandra Rojas-Olivares;Gerardo Caja;Sergi Carné;Ahmed A. K. Salama

  • Affiliations:

  • Serveis Tècnics de Recerca, Universitat de Girona, c/Pic de Peguera, 15, Ed. Casademont, 17003 Girona, Spain;Departament de Matemítiques, Universitat Autònoma de Barcelona, Edifici D, 08193 Cerdanyola del Vallès, Spain;Department of Animal and Food Science, Grup de Recerca en Remugants (G2R), Universitat Autònoma de Barcelona, Edifici V, 08193 Cerdanyola del Vallès, Spain;Department of Animal and Food Science, Grup de Recerca en Remugants (G2R), Universitat Autònoma de Barcelona, Edifici V, 08193 Cerdanyola del Vallès, Spain;Department of Animal and Food Science, Grup de Recerca en Remugants (G2R), Universitat Autònoma de Barcelona, Edifici V, 08193 Cerdanyola del Vallès, Spain;Department of Animal and Food Science, Grup de Recerca en Remugants (G2R), Universitat Autònoma de Barcelona, Edifici V, 08193 Cerdanyola del Vallès, Spain

  • Venue:
  • Computers and Electronics in Agriculture
  • Year:
  • 2012

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Abstract

In this paper we introduce the one-inflated bivariate Beta distribution as a new approach to analyze matching scores related to retinal image identification in lambs. These kind of data sets present many values equal to one, the perfect matching, and this justifies the introduction of one-inflation patterns. In addition, matching scores are correlated according to several bivariate patterns: left and right eye, 3 and 12 months of age, etc. Some examples of applications are given.