Image analysis – Applications – Personnel identification
Reexamination Certificate
2007-08-21
2007-08-21
Mehta, Bhavesh M (Department: 2624)
Image analysis
Applications
Personnel identification
C356S071000, C340S005830, C902S003000
Reexamination Certificate
active
09816232
ABSTRACT:
The invention provides an apparatus for determining a reference orientation (pattern orientation) to a fingerprint-like pattern, formed with a number of curves, accurately in a short time. The apparatus includes a pattern-center determination section for determining a reference center to the pattern, a reference-circle generation section for generating a reference circle centered at the pattern center, a reference-circle-intersecting-point calculation section for calculating intersecting points of the reference circle and the curves of the pattern, a reference-point determination section for determining a reference point for the pattern orientation based on a relationship between directions of the reference circle and directions of the pattern curves at the intersecting points, and a pattern-orientation determination section for determining the pattern orientation based on the pattern center and the reference point. The apparatus can be applied to a system which performs personal authentication using biometric information, such as a fingerprint, or a like system.
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Kim Charles
Mehta Bhavesh M
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