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    • 4. 发明授权
    • System and method for anonymous biometrics analysis
    • 用于匿名生物识别分析的系统和方法
    • US09020208B2
    • 2015-04-28
    • US13182310
    • 2011-07-13
    • Rand P. WhillockGary Edward DetermanVincent JacobsonSharath VenkateshaPedro Davalos
    • Rand P. WhillockGary Edward DetermanVincent JacobsonSharath VenkateshaPedro Davalos
    • G06K9/00G06F21/32
    • G06K9/00G06F21/32G06K9/00885
    • A system receives an identification number from a subject. The system retrieves a biometric measurement from a database using the identification number. The database includes biometric measurements of a plurality of subjects. Each biometric measurement is determined from a location of a particular subject's body, each biometric measurement is associated with a particular identification number, and each particular identification number is associated with a particular subject. When the use of the identification number results in a retrieval of a biometric measurement from the biometric database, the system searches a plurality of locations on the subject and takes biometric measurements at the locations, compares the retrieved biometric measurement from the biometric database with the biometric measurements of the subject, and indicates that the retrieved biometric measurement from the biometric database matches one or more of the biometric measurements from the subject or that the retrieved biometric measurement from the biometric database does not match any of the biometric measurements from the subject. In an embodiment, the system is used for verification purposes, not identification purposes.
    • 系统从主体接收识别号码。 系统使用标识号从数据库中检索生物测量。 数据库包括多个对象的生物测量。 每个生物特征测量从特定受试者的身体的位置确定,每个生物特征测量与特定的标识号相关联,并且每个特定的标识号与特定的对象相关联。 当使用识别号导致从生物特征数据库检索生物特征测量值时,系统搜索对象上的多个位置并在该位置进行生物测量,比较生物特征数据库中检索到的生物测量与生物特征数据 并且指示来自生物测定数据库的所检索的生物测量结果匹配来自受试者的一个或多个生物特征测量值,或者来自生物特征数据库的检索到的生物测量结果与来自受试者的任何生物测量结果不匹配。 在一个实施例中,该系统用于验证目的,而不是识别目的。
    • 7. 发明申请
    • IRIS RECOGNITION USING LOCALIZED ZERNIKE MOMENTS
    • 使用本地化ZERNIKE MOMENTS的IRIS识别
    • US20140023240A1
    • 2014-01-23
    • US13552694
    • 2012-07-19
    • Sharath VenkateshaSaad J. BedrosJan Jelinek
    • Sharath VenkateshaSaad J. BedrosJan Jelinek
    • G06K9/00G06K9/34
    • G06K9/0061G06K9/00617
    • A system receives an iris image and segments the iris region. The segmented iris region is mapped to a unit disk and partitioned into local iris regions (or sectors) as a function of the radius and angle The system calculates localized Zernike moments for a plurality of regions of the unit disk. The localized Zernike moment includes a projection of the local iris region into a space of Zernike polynomial orthogonal basis functions. The system generates an iris feature set from the localized Zernike moments for each partitioned region, excluding the regions which are comprised by occlusion. The iris features are weighted based on the conditions of blur, gaze and occlusion of the iris region. A probe iris image is then matched to a plurality of iris images in a database based on the distance of its feature set to the corresponding plurality of iris feature sets.
    • 系统接收虹膜图像并分割虹膜区域。 分割的虹膜区域被映射到单位盘并且根据半径和角度被划分为局部光圈区域(或扇区)。系统计算单位盘的多个区域的局部Zernike力矩。 局部Zernike矩包括局部虹膜区域投影到Zernike多项式正交基函数的空间中。 系统从每个分割区域的局部泽尼克力矩生成虹膜特征集,不包括由遮挡包含的区域。 基于虹膜区域的模糊,注视和闭塞的条件对虹膜特征进行加权。 然后,将探测虹膜图像基于其特征集与相应的多个虹膜特征集合的距离与数据库中的多个虹膜图像进行匹配。