Chapter 2. Marker-based Augmented Reality on iPhone or iPad

Augmented reality (AR) is a live view of a real-world environment whose elements are augmented by computer-generated graphics. As a result, the technology functions by enhancing one's current perception of reality. Augmentation is conventionally in real-time and in semantic context with environmental elements. With the help of advanced AR technology (for example, adding computer vision and object recognition) the information about the surrounding real world of the user becomes interactive and can be digitally manipulated. Artificial information about the environment and its objects can be overlaid on the real world.

In this chapter we will create an AR application for iPhone/iPad devices. Starting from scratch, we will create an application that uses markers to draw some artificial objects on the images acquired from the camera. You will learn how to set up a project in XCode IDE and configure it to use OpenCV within your application...