(Editor’s Note: This is an online-only article attributed to the August/September 2017 issue.)
On April 17, 2017, a family from Virginia found an unappetizing item in their bagged ready-to-eat salad. On the bottom of a plastic bag, they discovered a chopped-up corpse of a mouse stacked between savoy cabbage leaves and carrot slices. Shocked and outraged, the family sued both the food company responsible for rodent-contaminated salad production and the retailer distributing this product.
This is only one albeit a very impressive example of what can happen if food contaminants haven’t been detected and eliminated timely. According to the statistics, microbiological and physical contamination together are responsible for 54 percent of recalls in the food industry. And, while a recall is somewhat better than a lawsuit, it still causes losses, so it is essential to detect and discard contaminated products as early as possible.
An AVI system usually consists of image-capturing equipment and image-analysis software. AVI is based on the technology that is called machine vision because it allows machines to “see” and analyze real-world objects. An AVI system always includes a lighting source, a camera or another sensor (depending on the spectral range), and a processing unit. The software part is a set of image analysis algorithms that sift an image in order to detect any defects or deviations in the product’s appearance.| | | Next → | Single Page