一种简单的微波食品在线检测成像策略

G. Bellizzi, L. Crocco, M. Cavagnaro, M. Ricci, J. T. Vásquez, F. Vipiana
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引用次数: 3

摘要

微波成像可以代表食品在线检查的一种替代方法,以揭示在转化和/或包装阶段可能污染产品的可能异物的存在。为此目的,最近提出了专门用于这一目的的微波系统。针对该装置,提出了一种新的成像策略,该策略允许人们在不需要无污染物品作为参考样本的情况下构建目标图像。这个想法仍然是执行差分成像,利用被测物体相对于成像系统的可能对称性。这些对称性只发生在无污染的物品中,而夹杂物的存在打破了这些对称性,从而揭示了它们的存在。一个很常见的例子是食品包装在圆形的塑料/玻璃罐中。最后给出了一个简单的数值算例,说明了该方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Simple Imaging Strategy for In-Line food Inspection via Microwave Imaging
Microwave imaging can represent an alternative for in-line inspection of food products, to reveal the presence of possible foreign bodies that may have contaminated the product during the transformation and/or packaging stages. To this end, a microwave system specifically meant for such purpose has been recently proposed. With respect to this device, a novel imaging strategy is presented, which allows one to build the image of the target without the need of a contaminant-free item used as reference sample. The idea is still to perform a differential imaging taking advantage of possible symmetries of the object under test with respect to the imaging system. These symmetries only occurred in a contaminant-free item, while are broken by the presence of an inclusion, thus revealing their presence. A quite common case is that of food packaged in circular plastic/glass jars. A simple numerical example is provided showing the capabilities of the approach.
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