Image analysis – Applications – Personnel identification
Reexamination Certificate
2011-01-11
2011-01-11
Ahmed, Samir A. (Department: 2624)
Image analysis
Applications
Personnel identification
C382S324000
Reexamination Certificate
active
07869626
ABSTRACT:
An iris recognition method is provided. In the iris recognition method, binary image data is obtained by receiving eye image data and filtering the received eye image data using a predetermined threshold value. Then, candidate center search regions are searched for finding a pupil center using profile information of rows and columns of the binarized image. a pupil boundary and a center point are detected by performing a mask operation using 8 pupil boundary mask templates for each of concentric circles formed of pointes in the searched candidate center search regions as candidate pupil centers and different radiuses. An iris boundary region is detected by performing a masking operation using 6 iris boundary mask templates corresponding to 6 locations for concentric circles formed of the pupil center as an origin and different radiuses.
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Satomi, “Pupil circle and Irirs circle detection device”, JP2003317102, Nov. 2003, Japenese-English machine translation.
Chung Kyo Il
Gil Youn Hee
Ko Jong Gook
Yoo Jang Hee
Ahmed Samir A.
Electronics and Telecommunications Research Institute
Ladas & Parry LLP
Li Ruiping
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