Communications agency Space150 recently unveiled an interactive billboard in New York’s Times Square. The 61-foot digital billboard, designed for the Forever 21 brand, features virtual models who interact with the crowd; sometimes taking a Polaroid photo of the crowd and showing it to them, or picking up an individual from the crowd and turning him into a frog by a kiss or dropping him into a shopping bag. The agency used high-tech surveillance equipment and computer vision technology to identify and map people and allow the computer to form a real-time image of people in the crowd. The billboard also shows live on-screen feed of twitter messages from fans of Forever 21.

Watch this interactive billboard enthralling the Times Square crowd:

Space150

[via DesignBoom]