Patent ID: 7920724

Claim:
An iris recognition method, comprising: an image acquiring component, operable to acquire an eye image; an iris localization processor, said iris localization processor operable to perform steps including: a step of locating an iris region, wherein said iris region is separated from an eye image and then transformed into a 2D rectangular image; a step of iris feature extraction, wherein a plurality of feature points are extracted from said 2D rectangular image and transformed into a sequence of vectors; and a pattern matching processor, said pattern matching processor operable to perform steps including: a step of iris feature comparison, wherein said iris feature comparison is performed to estimate the similarity between said sequence of vectors of two irises and determine whether said two irises match; wherein in said step of iris feature comparison, an equation 〈 f r 1 , f r 2 〉 = ∑ k = 0 n - 1 ⁢ ∑ l = 0 n - 1 ⁢ α k ⁢ α l ⁢ 〈 g γ k , g γ l 〉 , where: f r 1 , f r 2 =feature vector, <R k f,g γ k <g γ k =atom, α k ,α 1 =amplitude, g γ k , g γ =base, is used to calculate an inner product function of iris feature vectors and determine the similarity between two corresponding irises.