Types of Augmented Reality
One of the most important parts of augmented reality is the ability of the user to see his or her environment. However, the augmented reality device also has to “see” it, and that involves a computer-based vision system. Augmented reality is an amazingly diverse, robust, and complicated field, and if ever there was an industry where one size does not fit all, it is the augmented reality arena.
There are seven classes of augmented reality systems: helmet, head-up display smart-glasses (Integrated, and add-on), projection, specialized and other.
Some of the glasses use audio as the information presentation (including navigation). Others, again designating themselves as offering augmented reality smart-glasses merely offer an embedded camera in a glasses frame.
Types of Augmented Reality Systems
One of the most important parts of augmented reality is the ability of the user to see his or her environment. However, the augmented reality device also has to “see” it, and that involves a computer-based vision system (Fig. 2.1).
A camera combined with a display is an appealing configuration. Such a setup provides vision-based feedback that effectively closes the loop between the localization process and the display. This also reduces the need for heavy calibration procedure.
But, what should, or will be the display device. We have several choices, as described in the following sections.
All the displays used in wearable augmented reality systems (which excluded by definition mobile devices such as smart phones, tablets, and notebooks) are commonly referred to see-through, near-to-the-eye displays, or NEDs.
© Springer International Publishing AG 2017
J. Peddie, Augmented Reality, DOI 10.1007/978-3-319-54502-8_2
Fig. 2.1 Vision-based augmented reality