Affordable VMS, Import Video, Find Face, Track Person?

I've been asked to find an "affordable" solution that firstly, allows the VMS to be fed an image of someone's face; secondly, has the VMS search for that person through the video footage already stored; and thirdly, then plots their movements during their visit as well as suggesting editing times accordingly. I can't even think of an expensive solution of the top of my head. Tell me if I'm mad to even think about this.

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