A computer vision approach based on endocarp features for the identification of olive cultivars

The identification of olive cultivars is of utmost importance for a multitude of factors affecting both, the olive oil elaboration process and fair trade exchanges. The accurate varietal identification is a time consuming task that requires trained specialists or expensive and specific equipment. Wh...

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Detalhes bibliográficos
Autores: Satorres Martínez, Silvia, Martínez Gila, Diego Manuel, Abdullah, Beyaz, Gómez Ortega, Juan, Gámez García, Javier
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Recursos:Universidad de Jaén
Repositorio:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
OAI Identifier:oai:ruja.ujaen.es:10953/2115
Acesso em linha:https://doi.org/10.1016/j.compag.2018.09.017
https://www.sciencedirect.com/science/article/pii/S0168169918307026
https://hdl.handle.net/10953/2115
Access Level:acceso abierto
Palavra-chave:Endocarp features
Computer vision
Olive varietal identification
Wilk’s Lambda
Partial least squares discriminant analysis
Descrição
Resumo:The identification of olive cultivars is of utmost importance for a multitude of factors affecting both, the olive oil elaboration process and fair trade exchanges. The accurate varietal identification is a time consuming task that requires trained specialists or expensive and specific equipment. When applying the traditional method, a specialist assesses morphological features using the olive endocarp. A proposal to automate this identification method is presented in this paper. Endocarp images, acquired under three different perspectives, are processed to extract the same information that the specialist utilizes. Then, the partial least squares discriminant analysis classifier, with or without feature selection, has been tested on a set of 250 samples from 5 different varieties. Results show that the proposal is an alternative identification method which could also be used in the traditional one in order to assist the specialist in the determination of the variety.