The group demonstrates the tech, which uses a tactile interface and naked eye 3D display.

This RePro3D technology, developed at Keio University, Japan, enables people to touch a 3D character that has been projected into a real environment and appears to be floating in midair. The system uses a glasses-free 3D integral imaging display to project the image and an infrared camera to track a user's hand movements. The character can instantly react to the movements, and a tactile feedback device worn on the user's finger can replicate the sensation of directly touching the image. This sort of technology could have great potential for interacting with characters in video games. Watch the video to see a demonstration of RePro3D:

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