Above a busy intersection in downtown Amsterdam hangs a large video billboard projecting the scene below, but at the bottom is a violent street-fight.  The people below are forced to witness their own inaction against the violence, overlaid onto the live video with augmented reality technology.  This is part of a nationwide government PSA against violence.

Public service employees in the Netherlands face aggression and violence on the streets more and more often. Onlookers unfortunately do not intervene often enough when they encounter a situation like this. A live interactive billboard in Amsterdam and Rotterdam is used to place people in a similar situation witch confronts them with their inactivity.

The technology is trivial, since it’s a fixed camera and fixed environment, but it is a clever use of the technology.  However, their intent to ‘shame citizens’ into action doesn’t seem to be working, as (From the video) many people seem rather entertained by it instead.

via YouTube – Live interactive mega billboard against agression. via Mashable