What is augmented reality?

At the beginning it's good to define what actually is augmented reality (AR). Usually augmented reality is defined as a live, direct or indirect, view of a physical, real-world environment whose elements are augmented by computer-generated sensory input such as sound, video or graphics. A very simple example of augmented reality is real online picture which has some added computer generated graphics. Example of commonly used augmented reality solutiosn is for example interior design software where you can add certain elements to the real picture of the room.