Iris encoding method, individual authentication method, iris...

Details Iris encoding method, individual authentication method, iris... Iris encoding method, individual authentication method, iris...

2003-09-12

2009-02-03

Ahmed, Samir A. (Department: 2624)

Image analysis

Applications

Personnel identification

C359S857000, C340S005820

Reexamination Certificate

active

07486806

ABSTRACT:
In iris authentication, iris regions are extracted from a plurality of images (2a, 2b). The extracted iris regions are subjected to polar coordinate transformation (3a, 3b) and band limitation (4a, 4b). Thereafter, an iris code is generated from the coordinate-transformed, band-limited iris regions (5a, 5b). The iris code is subjected to rotational compensation (6a, 6b). A plurality of resultant iris codes are synthesized into a single iris code by determining the bit value of each bit based on a majority rule (7a, 7b).

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