Iris Biometric Model for Secured Network Access

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6

exiStiNg methodS

forelimiNatiNg effectS

of the eyelidS

In this chapter we propose to present the existing methods used

for the elimination of the effects of upper and lower eyelids that

can hide a part of the iris of the eye. We will detail three simula-

tions of these methods. Based on these approaches, in Chapter 7

we will present our most effective method for such treatments.

6.1 Introduction

Normalization is an important phase in the process of authentication.

In addition to the functions detailed in previous chapters (cf.Chapter 2,

Section 2.5.3), this phase leads to eliminating the effects of upper and

lower eyelids. Several researchers have proposed various methods to

solve these problems (cf. Chapter 2, Section 2.5.6). We present th ...