Short communication.Automatic inspection of the pomegranate (Punica granatum L.) arils quality by means of computer vision
AbstractWith the aim of ensuring the quality and homogenising the colour of commercial batches of pomegranate arils, a new prototype for the automatic inspection of pomegranate arils and their separation into categories by means of air ejectors has been developed. Arils are singulated and transported on conveyor belts. Images of the arils are acquired using two cameras to allow estimation of the quality and are then expelled through different outlets according to the category. New control software were developed that synchronise the advance of the conveyor belts, the acquisition of images and the separation by air ejectors, which also includes mechanisms for the synchronisation and communication between the vision and control computers. A new computer vision system has been developed for the inspection of arils that distinguish between arils and raw material by estimating the colour of the objects and then classify the arils by size and colour. The prototype was tested over a six-month period in a Spanish pomegranate producer, with the inspection of about 5 Mg of product. The new prototype achieves the objective of inspecting and sorting pomegranate arils according to their quality, reaching the performance specifications.
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