Thanks for the correction! I was in the tub and not really in the "SI units" headspace :) And yeah, continuous tracking of people is definitely viable, includi

Thanks for the correction! I was in the tub and not really in the "SI units" headspace :) And yeah, continuous tracking of people is definitely viable, including entire crowds of people. A couple of years ago our local football team did a gigapixel photo of the entire stadium (on a 360 degree pan mount) and you could very easily manually pan through the photo and identify faces very very clearly. Tech to do that in real-time is definitely here and readily available.