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    • 1. 发明申请
    • Iris-based biometric identification
    • 基于虹膜的生物识别
    • US20050207614A1
    • 2005-09-22
    • US10897664
    • 2004-07-22
    • Daniel SchonbergDarko Kirovski
    • Daniel SchonbergDarko Kirovski
    • G06K9/00
    • G06K9/00604G06K9/00597G06K9/0061
    • A method includes forming a feature vector associated with an iris of an individual using a transform operation including converting an iris image into a log-polar image, scaling one or more samples in the log-polar image according to a Fourier-Mellin transform, and performing a Fourier transform on the scaled samples. The method involves forming an iris digest based on the feature vector, and creating a biometric identifier based on the iris digest. A system includes an iris scanner, an iris analyzer that forms an image of a human iris wherein the presence of eyelashes in the image is minimized, forms a feature vector associated with the iris image using a modified Fourier-Mellin transform, and compresses the feature vector into an iris digest.
    • 一种方法包括使用包括将虹膜图像转换成对数极图像的变换操作来形成与个体的虹膜相关联的特征向量,根据傅立叶 - 梅林变换缩放对数极图像中的一个或多个样本,以及 对缩放后的样本进行傅里叶变换。 该方法包括基于特征向量形成虹膜摘要,以及基于虹膜摘要创建生物测定标识符。 一种系统,包括虹膜扫描仪,虹膜分析器,其形成人体虹膜的图像,其中图像中存在睫毛被最小化,使用修改的傅立叶 - 梅林变换形成与虹膜图像相关联的特征向量,并压缩特征 矢量进入虹膜摘要。
    • 2. 发明授权
    • Iris-based biometric identification
    • 基于虹膜的生物识别
    • US07336806B2
    • 2008-02-26
    • US10897664
    • 2004-07-22
    • Daniel SchonbergDarko Kirovski
    • Daniel SchonbergDarko Kirovski
    • G06K9/00
    • G06K9/00604G06K9/00597G06K9/0061
    • A method includes forming a feature vector associated with an iris of an individual using a transform operation including converting an iris image into a log-polar image, scaling one or more samples in the log-polar image according to a Fourier-Mellin transform, and performing a Fourier transform on the scaled samples. The method involves forming an iris digest based on the feature vector, and creating a biometric identifier based on the iris digest. A system includes an iris scanner, an iris analyzer that forms an image of a human iris wherein the presence of eyelashes in the image is minimized, forms a feature vector associated with the iris image using a modified Fourier-Mellin transform, and compresses the feature vector into an iris digest.
    • 一种方法包括使用包括将虹膜图像转换成对数极图像的变换操作来形成与个体的虹膜相关联的特征向量,根据傅立叶 - 梅林变换缩放对数极图像中的一个或多个样本,以及 对缩放后的样本进行傅里叶变换。 该方法包括基于特征向量形成虹膜摘要,以及基于虹膜摘要创建生物测定标识符。 一种系统,包括虹膜扫描仪,虹膜分析器,其形成人体虹膜的图像,其中图像中存在睫毛被最小化,使用修改的傅立叶 - 梅林变换形成与虹膜图像相关联的特征向量,并压缩特征 矢量进入虹膜摘要。
    • 4. 发明申请
    • Iris-Based Biometric Identification
    • 基于虹膜的生物识别
    • US20080025575A1
    • 2008-01-31
    • US11838577
    • 2007-08-14
    • Daniel SchonbergDarko Kirovski
    • Daniel SchonbergDarko Kirovski
    • G06K9/00
    • G06K9/00604G06K9/00597G06K9/0061
    • A method includes forming a feature vector associated with an iris of an individual using a transform operation including converting an iris image into a log-polar image, scaling one or more samples in the log-polar image according to a Fourier-Mellin transform, and performing a Fourier transform on the scaled samples. The method involves forming an iris digest based on the feature vector, and creating a biometric identifier based on the iris digest. A system includes an iris scanner, an iris analyzer that forms an image of a human iris wherein the presence of eyelashes in the image is minimized, forms a feature vector associated with the iris image using a modified Fourier-Mellin transform, and compresses the feature vector into an iris digest.
    • 一种方法包括使用包括将虹膜图像转换成对数极图像的变换操作来形成与个体的虹膜相关联的特征向量,根据傅立叶 - 梅林变换缩放对数极图像中的一个或多个样本,以及 对缩放后的样本进行傅里叶变换。 该方法包括基于特征向量形成虹膜摘要,以及基于虹膜摘要创建生物测定标识符。 一种系统,包括虹膜扫描仪,虹膜分析器,其形成人体虹膜的图像,其中图像中的睫毛的存在被最小化,使用修改的傅立叶 - 梅林变换形成与虹膜图像相关联的特征向量,并且压缩特征 矢量进入虹膜摘要。
    • 9. 发明授权
    • Radio frequency certificates of authenticity and related scanners
    • 射频证书的真实性和相关的扫描仪
    • US08708241B2
    • 2014-04-29
    • US12633289
    • 2009-12-08
    • Gerald R DeJeanDarko Kirovski
    • Gerald R DeJeanDarko Kirovski
    • G06K19/06
    • H01Q9/0421H01Q1/243H01Q1/38H01Q19/005
    • Radio frequency certificates of authenticity (RFCOAs) and associated scanners and methods are presented. In one implementation, an array of miniaturized antenna elements in an RFCOA scanner occupies an area smaller than a credit card yet obtains a unique electromagnetic fingerprint from an RFCOA associated with an item, such as the credit card. The antenna elements are miniaturized by a combination of both folding and meandering the antenna patch components. The electromagnetic fingerprint of an exemplary RFCOA embeddable in a credit card or other item is computationally infeasible to fake, and the RFCOA cannot be physically copied or counterfeited based only on possession of the electromagnetic fingerprint.
    • 介绍了射频证书的真实性(RFCOAs)及相关的扫描仪和方法。 在一个实现中,RFCOA扫描器中的小型化天线元件阵列占据小于信用卡的区域,而从与诸如信用卡的项目相关联的RFCOA获得唯一的电磁指纹。 天线元件通过折叠和曲折天线补片部件的组合而被小型化。 可嵌入信用卡或其他物品中的示例性RFCOA的电磁指纹在计算上是不可行的,并且RFCOA不能仅基于拥有电磁指纹而被物理地复制或伪造。