In this chapter readers will learn how to create a standard real-time project using OpenCV (for desktop), and how to perform a new method of marker-less augmented reality, using the actual environment as the input instead of printed square markers. This chapter will cover some of the theory of marker-less AR and show how to apply it in useful projects.
The following is a list of topics that will be covered in this chapter:
Marker-based versus marker-less AR
Using feature descriptors to find an arbitrary image on video
Pattern pose estimation
Enabling support for OpenGL visualization in OpenCV
Rendering the augmented reality
Before we start, let me give you a brief list of the knowledge required for this chapter and the software you will need: