December 30, 2011 4 Comments
So far we have been discussing techniques that can be implemented by touch screens but augmented reality is something completely new. We did already tell you something about it in our Holodeck Post where we mentioned the interactive kitchen table.
Wikipedia describes it as follows:
Augmented reality (AR) is 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, graphics or GPS data.
AR is nowadays implemented on smartphones. You point your camera at an object, at an environment or something else, and extra elements are added on the screen that relate to the context. One example is taking a picture of the City Hall in Leuven, and getting extra information about it. The phone does this processing based on location (GPS), a digital compass and possibly image recognition.
Taking a picture is not something you would have done if you would not have a smartphone and wanted to get some extra information. And also, this system seems to be not as popular as initially intended. Could this be because it demands more effort from us than we would like to do (cfr Can New Technologies Replace Old Ones)?
Augemented Reality seems like something great, but care has to be taken where to implement it. With (3D) cameras, the situation becomes quite different. The camera is stationary, and also the visual feedback (a projector) is mostly standing still. A table for example becomes the ideal area where to perform such interaction. A lot of experiments have been done already, and produce promising outcomes. The following videos are all examples of AR with the use of a 3D camera.