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Open AccessArticle

Sorting Olive Batches for the Milling Process Using Image Processing

ANDALTEC, Plastic Technological Center, Martos, Jaén 23600, Spain
Group of Robotics, Automation and Computer Vision, University of Jaén, Agrifood Campus of International Excellence (ceiA3), Jaén 23071, Spain
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M.N. Passaro
Sensors 2015, 15(7), 15738-15754;
Received: 11 May 2015 / Revised: 20 June 2015 / Accepted: 24 June 2015 / Published: 2 July 2015
(This article belongs to the Section Physical Sensors)
The quality of virgin olive oil obtained in the milling process is directly bound to the characteristics of the olives. Hence, the correct classification of the different incoming olive batches is crucial to reach the maximum quality of the oil. The aim of this work is to provide an automatic inspection system, based on computer vision, and to classify automatically different batches of olives entering the milling process. The classification is based on the differentiation between ground and tree olives. For this purpose, three different species have been studied (Picudo, Picual and Hojiblanco). The samples have been obtained by picking the olives directly from the tree or from the ground. The feature vector of the samples has been obtained on the basis of the olive image histograms. Moreover, different image preprocessing has been employed, and two classification techniques have been used: these are discriminant analysis and neural networks. The proposed methodology has been validated successfully, obtaining good classification results. View Full-Text
Keywords: olive classification; computer vision; automatic quality control olive classification; computer vision; automatic quality control
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MDPI and ACS Style

Puerto, D.A.; Gila, D.M.M.; García, J.G.; Ortega, J.G. Sorting Olive Batches for the Milling Process Using Image Processing. Sensors 2015, 15, 15738-15754.

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