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5
exiStiNg methodS for
localizatioN of exterNal
aNd iNterNal edgeS of
the iriS of the eye
is chapter aims to present the different existing methods used
for the localization of external and internal edges of the iris of
the left or right eye. We will detail five simulations of these
methods. A comparative analysis and an evaluation of the results
of these simulations are presented in the Section 5.3. After ana-
lyzing these results, we will propose in Chapter 7 of Part 3 a new
model that is more efficient at the level of processing time.
5.1 Introduction
As we detailed in Chapter 2, John Daugman was the first to propose
the method of recognition based on the iris of the eye. He used the
integrodifferential operator to locate the external and interna ...