Thr most refined usage, and money dumped sector of Ai by far is image recognition. Its where all thr money from Amazon and others has been dumped (Flock Surveillance, Amazon Ring, FedEx Trucks, Wal~Mart and your choice of store)

Surveillance, ALPR, Facial recognition, gait recognition, etc. It takes a massive amount of data

Go see how much space you need if you want to secure data from 10,000 cameras at 480p/720p/1080p for a few weeks, let alone a year or two