About 20 years ago (Holy shit!) I worked in a potato processing facility. They had multiple belts all about 8' wide that ran through a machine that scanned 100s / 1000's of dehydrated potato flakes for quality every second and could hit a specific flake with a burst of air to blow it off one line and into another. 20 yrs ago. I believe they went under / were bought up by a more modern company 5 or so yrs ago.