Draw a zone. Flag who steps into it.

Draw a rectangle over any hazardous area — a loading dock, a forklift lane, equipment with a live exclusion radius — on a photo or directly over your live camera feed, and a general-purpose object detector flags every person whose position overlaps it. This is the same underlying pattern (person detection plus a geofenced rule) behind proximity and restricted-access alerts on a real production floor, in any industry.