The applications of biometric technology for automated personal identification become ubiquitous. Iris recognition is well known for high accuracy and reliability among the biometric traits. This paper presents an eff...
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The applications of biometric technology for automated personal identification become ubiquitous. Iris recognition is well known for high accuracy and reliability among the biometric traits. This paper presents an efficient noise-removing approach for non-cooperative iris recognition systems. Proposed method removed the noise factors including eyelids, eyelashes, reflections, out of framework, pupil and sclera. The novelty is to detect eyelashes and reflections through finding appropriate thresholds using a procedure called statistical decision making. The eyelids are detected using parabolic Hough transform in normalized iris image to increase computational speed. In addition, a coarse-to-fine strategy for accurate and fast iris localization is proposed. The Gabor-wavelet and a novel encoding strategy proposed in our previous work are also used here to generate the iris codes. We elaborate the principle of mask code generation to assign noisy bits in an iris code to exclude them in matching step. Experimental results on CASIA-IrisV3-Interval database show superiority of the proposed scheme among other state-of-the-art methods available in the literature.
The traditional algorithm for solving the linear combination of delayed m-sequence is discussed. Based on analysis of the linear relationship between the states of the central m-sequence and the delayed m-sequence, a ...
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ISBN:
(纸本)9781467321969
The traditional algorithm for solving the linear combination of delayed m-sequence is discussed. Based on analysis of the linear relationship between the states of the central m-sequence and the delayed m-sequence, a new algorithm, which solves the linear combination problem of delayed m-sequence, is given by taking advantage of linear equations over binary finite field. Application of this algorithm on designing the mask of the N-CDMA mobile communication system is discussed. This algorithm provides a convenient way for the generation of long delayed m-sequence in the engineering calculation.
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