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Here's one of the more unusual uses dreamt up for augmented reality.
Using the Aurasma augmented reality app - revealed in July this year and developed by software company Autonomy - da Vinci's famous portrait of Mona Lisa is reimagined as an alien.
To see more pictures of Autonomy's Aurasma app in action visit Photos: From yachts to shoes and movies - how marketers are using augmented reality.
British Library Out of This World exhibition
The alien worlds, dazzling technologies and alternate realities of science fiction were on show at the Out of this World exhibition at the British Library in September.
The exhibition traced the themes explored through science fiction as a series of worlds: alien worlds, future worlds, parallel worlds, virtual worlds and the end of the world.
Discover more of the exhibits on show at the exhibition by visiting Photos: A history of the future - science fiction through the ages at the British Library.
Photo: British Library
This interesting piece of tech is able to turn any surface - from a table to a hand - into a touchscreen.
The OmniTouch, shown off in October this year, is a wearable device that projects a graphical user interface, such as a computer desktop or a virtual keypad, onto any surface. Users are able to interact with these virtual interfaces using their fingers, which are tracked by sensors built into OmniTouch, in the same way they would use a touchscreen.
For more photos of the OmniTouch check out Photos: Microsoft's OmniTouch - The tech that turns any surface into a touchscreen.
Photo: Microsoft Research/CMU