PROCEDURE SPEED
|
Operation
|
Procedure speed
|
|
Evaluation of image focus
|
15msec
|
|
Elimination of high light reflections
|
56msec
|
|
Localization of eye and iris
|
90msec
|
Adaptation to pupil boundary |
12msec |
Localization and adjustment of both
eyelids |
93msec |
Elimination of artifacts from
eyelashes and contact lenses |
78msec |
Demodulation and creation of iris
code |
102msec |
XOR comparison of any two iris
codes |
10µs
|
Source: Daugman, J. (2001), Iriserkennung, in: Biometrische Identifikation,
Behrens / Roth (Hrsg), p. 156
Database
- Size of each IrisCode® is only 512 bytes
- Precision does not diminish as database grows
- The IrisCode® can be stored on just about any token
(SmartCard etc.)
Recognition Speed
Recognition in generally less than 2 seconds
