Here’s the idea: thanks to some clever software and the front-facing camera on a tablet, Fujitsu has worked up a way for users to type on just about any flat surface. The software is purely a prototype at this point, but it doesn’t need anything in the way of exotic gadgetry to work properly — it appeared to be running just fine on a generic Fujitsu Windows 8 tablet, albeit with a lamp of sorts to keep the user’s hands nice and bright.
Using the gesture keyboard seems so simple when you’re watching it live — a person calmly tapping on the surface of a table is actually typing out sentences — but the underlying tech is nothing to sneeze at. There’s some serious machine learning going on here, as the system gets a feel for the features and movements of a user’s hands to determine their placement on a keyboard that really isn’t there.