naa a22 4500 510725503 CHVBK 20180411082933.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11947-012-1015-2 doi (NATIONALLICENCE)springer-10.1007/s11947-012-1015-2 In-Line Estimation of the Standard Colour Index of Citrus Fruits Using a Computer Vision System Developed For a Mobile Platform [Elektronische Daten] [A. Vidal, P. Talens, J. Prats-Montalbán, S. Cubero, F. Albert, J. Blasco] A key aspect for the consumer when it comes to deciding on a particular product is the colour. In order to make fruit available to consumers as early as possible, the collection of oranges and mandarins begins before they ripen fully and reach their typical orange colour. As a result, they are therefore subjected to certain degreening treatments, depending on their standard colour citrus index at harvest. Recently, a mobile platform that incorporates a computer vision system capable of pre-sorting the fruit while it is being harvested has been developed as an aid in the harvesting task. However, due to the restrictions of working in the field, the computer vision system developed for this machine is limited in its technology and processing capacity compared to conventional systems. This work shows the optimised algorithms for estimating the colour of citrus in-line that were developed for this mobile platform and its performance is evaluated against that of a spectrophotometer used as a reference in the analysis of colour in food. The results obtained prove that our analysis system predicts the colour index of citrus with a good reliability (R 2 = 0.925) working in real time. Findings also show that it is effective for classifying harvested fruits in the field according to their colour. Springer Science+Business Media New York, 2012 Colour analysis nationallicence Citrus fruits nationallicence Degreening nationallicence Machine vision nationallicence Automatic inspection nationallicence Vidal A. Departamento de Tecnología de Alimentos, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain aut Talens P. Departamento de Tecnología de Alimentos, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain aut Prats-Montalbán J. Departamento de estadística e investigación operativa, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain aut Cubero S. Centro de Agroingeniería, Instituto Valenciano de Investigaciones Agrarias (IVIA), Cra. Moncada-Náquera km 5, 46113, Moncada, Valencia, Spain aut Albert F. Instituto Interuniversitario de Investigación en Bioingeniería y Tecnología Orientada al Ser Humano, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain aut Blasco J. Centro de Agroingeniería, Instituto Valenciano de Investigaciones Agrarias (IVIA), Cra. Moncada-Náquera km 5, 46113, Moncada, Valencia, Spain aut Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/12(2013-12-01), 3412-3419 1935-5130 6:12<3412 2013 6 11947 https://doi.org/10.1007/s11947-012-1015-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11947-012-1015-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vidal A. Departamento de Tecnología de Alimentos, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain aut NATIONALLICENCE 700 1- Talens P. Departamento de Tecnología de Alimentos, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain aut NATIONALLICENCE 700 1- Prats-Montalbán J. Departamento de estadística e investigación operativa, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain aut NATIONALLICENCE 700 1- Cubero S. Centro de Agroingeniería, Instituto Valenciano de Investigaciones Agrarias (IVIA), Cra. Moncada-Náquera km 5, 46113, Moncada, Valencia, Spain aut NATIONALLICENCE 700 1- Albert F. Instituto Interuniversitario de Investigación en Bioingeniería y Tecnología Orientada al Ser Humano, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain aut NATIONALLICENCE 700 1- Blasco J. Centro de Agroingeniería, Instituto Valenciano de Investigaciones Agrarias (IVIA), Cra. Moncada-Náquera km 5, 46113, Moncada, Valencia, Spain aut NATIONALLICENCE 773 0- Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/12(2013-12-01), 3412-3419 1935-5130 6:12<3412 2013 6 11947 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer