Biometrics is the science that
analyzes biological data and also the technology that measures biological data.
Biometric systems make identification or identity verification by using
measurable, distinctive physical and behavioral properties of humans. The most
widely used biometrics techniques rely on finger prints, palm, hand geometry,
iris, retina, face, ear shape, vein, signature, hand writing and voice
identification of an individual. Iris identification systems and retina
identification systems are the most accurate and reliable identifying
techniques. Iris is a circular structure surrounding the pupil, which determines
eye color. The iris is a very rich tissue and it has a unique texture. This
texture is different for each individual and it will stay same throughout their
lives. Iris identification systems use the mathematical pattern-identification
algorithms and statistical methods on individuals’ captured iris images.
Retina, similar to iris, is unique for each person and has an unchanging
texture throughout the life, except for some side effects of diseases. Retina
that is located in the back side of the eye is responsible for vision. The mesh
of blood vessels in retina is very complicated and distinctive. In retina
identification systems, firstly, infrared light is radiated into the eye and
blood vessels create unique reflections of this light. Retina identification is
used in many areas from security systems to medical applications. This study
examines and presents similarities and differences between two ocular biometric
systems which are iris identification systems and retina identification
systems. Analysis has also been carried out suing the findings of this study.
Biometrics, Iris identification System