They are Hyper-Realistic Digital Stills of Humans.

There's a lot of room for improvement in the animation department, though. For me the worst offender is the mouth, it moves in a completely unrealistic manner. The second worst offender is the head/neck movement, which moves with robot-like precision. Finally, the eyes, which are (granted) not as "dead" as in other models, stare too much and communicate too little.