Disney teases an Olaf robot for its parks

Disney has unveiled a new animatronic in the form of Olaf, the carrot-nosed snowman from the Frozen series of films. The robotic character will roam the streets of the upcoming World of Frozen (coming soon to Adventure World at Disneyland Paris) and make "limited-time special appearances at World of Frozen at the Hong Kong Disneyland resort," Disney wrote on its parks blog.

Olaf, seen in prototype form in a 30-minute Disney video, can walk on his little snowball legs, emote realistically and speak with visitors. During the video, Disney Imagineering Paris exec Michel Den Dulk removes and replaces the robot's nose and arm, something park visitors will also be able to do.

To help make Olaf look authentic and toon-like in his movements, the Imagineering team used AI reinforcement learning. That allowed them to teach the robot how to walk and perform "graceful" motions in far ...