It's augmented reality or AR for the workplace. I can't find another term so I made up the term remote human assist or RHA. I'll leave the rest up to Japan's institute of Advanced Industrial Science and Technology, who came up with this AR concept.
I'll try to make this as uncomplicated as possible. So you have 2 humans wearing a GoPro HD camera mounted on a helmet. Next you have both also wearing a HMD or Head Mounted Display showing the action through video. Basically, you have the trainer viewing the trainee's line of sight. The trainer then displays a hand movement of where the trainee is supposed to put his own hand, walking him through a task. The colored glove of the trainer is superimposed over the trainee's real-time image.
This could come in handy if say your airline pilot gets sick from eating the fish and you have to land the plane yourself... or you walk into a situation where you have only minutes to disarm a bomb and there happens to be one of those units laying there. Seriously though, I guess there are times when a trainer can't be following a trainee or multiple trainees all of the time. This appears to be designed for hostile environments where um, the trainee's life is more important? OK, I think you get the picture.
Video after the break: