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Intelligent visual inspection of food products

Although Automated Visual Inspection has been applied in many areas, the food industry has so far been unable to take full advantage of this technology due to the non-deterministic nature of product specifications. This paper discusses some of the problems faced by food industries including foreign body detection, shape and decoration analysis. Possible solutions using different visual sensing methods such as UV illumination, X-ray, Gamma ray and infra-red are assessed. The paper also discusses the application of an intelligent vision system, based on Prolog, for the inspection of complex products such as foodstuff and plants.