Fujitsu touch interface detects fingers on real objects, adds digital details to print

Bringing touch interfaces to real-world objects often involves putting hardware either inside the item or in front of it, neither of which is especially natural. Fujitsu has developed a control system that could eliminate those obstructions and bring digital interaction to many surfaces, even to old-fashioned paper. Its multi-camera approach can distinguish between objects on a table and the exact positions of a user's fingers, right down to fingertip outlines; it's accurate enough to scan text ...