Face/people detection/tracking at scale like the Chinese are doing. Despite my moral/ethical compass revolting on this, it is one of the most impactful applicat

Face/people detection/tracking at scale like the Chinese are doing. Despite my moral/ethical compass revolting on this, it is one of the most impactful applications so far. It is not just face detection that it does, there are other more complicated things like gait/activity based classification. Route tracking, people interaction tracking, etc. while some of this is just hype, clearly a lot of money is flowing to solve these Chinese government problems.