Image analysis – Pattern recognition – Feature extraction
Reexamination Certificate
2007-01-17
2011-10-11
Bali, Vikkram (Department: 2624)
Image analysis
Pattern recognition
Feature extraction
C382S115000, C382S117000, C382S181000, C382S190000, C382S195000
Reexamination Certificate
active
08036466
ABSTRACT:
A method of approximating the inner or outer boundary of an iris comprises generating an approximate boundary representation (20) comprising a least squares approximation by a cosine transform series of a function of the angle (θ) about a fixed point (A) of the distance of measured points (10) on the boundary from the fixed point (A). More broadly, the method may be used to approximate the shape of any two-dimensional curve or figure.
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Bali Vikkram
Ungaretti & Harris LLP
Zeilberger Daniel
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