Hyperspectral Imaging for Foreign Matter Detection in Foods: Advances, Challenges, and Future Directions

The presence of foreign matter in food poses food safety issues for consumers and directly threatens the food supply chain. In order to ensure food quality and hygiene, promote economic efficiency, and protect consumers’ health rights, the rapid, non-destructive detec- tion of foreign matter in food is an urgent task that requires development. Hyperspectral imaging technology can obtain high-resolution spectral information of foreign matter in multiple wavelengths, and it is widely used in...