Chapter 7: Learning Iris Recognition
When we gaze into someone’s eyes, we can sense a lot about how they may be feeling. The eyes can reflect if someone is worried or if they are truly happy. But there is more to the human eye. Within the eye is the iris, or the colored part of the eye, which is responsible for allowing light to reach the retina. And each of our irises is unique, which makes the iris an optimal biometric.
In this chapter, we’ll start by taking a closer look at the structure of the iris, and outline some of the main functions. We’ll discover the many markings in an iris, such as ridges, crypts, stripes, and freckles, which provide its uniqueness. We’ll then cover the structure of the eye and what is captured when using iris recognition. We’ll step through methods to sense and capture iris images, looking at imaging techniques and learning how the eye is normalized. You’ll gain a better understanding of how template matching...
