Researchers from National Taiwan University have developed a shadow-based DDR game, “based on their efficient 3D model retrieval technology.” Videos after the jump.

The player stands in from of the screen and the computer determines the pose by comparing the player to the picture of the empty play area. Poses scroll from left to right across the bottom. You need to reach that pose before it reaches the red target. The program then informs you if you were successful

[via Netscape]

Video 1 – DDR

Video 2 – Other Applications