I saw a similar thing on TV recently. It was in the UK. They used two violent offenders who were now involved in training self defence. They didn't even show them real bodies but put sensors on the real people so the offenders could detect their posture & movement on a screen. They instantly picked out one poor chap who had already been the victim of several muggings. They spent a few hours training him how to improve his posture & showed the same style footage to another group of violent offenders. The second group didn't pick this guy as their preferred target.
If anyone knows who is teaching this stuff I'd be interested to read more or catch a seminar.