ABSTRACT
This chapter reviews a plethora of iris recognition vendors, using all different kinds of mathematical algorithms. But it is interesting to see that the work conducted by Dr. John Daugman still serves as the basis for these algorithms. The iris recognition is a dynamic type of technology, in that images of the iris can be captured of individuals as they are walking. The eyelids have been deemed to be interference when dividing up the image of the iris, so derivates are calculated in order to reduce the impact they have upon the composite of the iris. The chapter describes that a Boolean XOR operators are used to calculate the Hamming distance(s). The basic theoretical construct behind the Hamming distance model is that the iris patterns from the same iris are not different from each other when compared to patterns from different irises.
