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    • 1. 发明申请
    • METHOD AND APPARATUS FOR EXTRACTING FACE FEATURE
    • 提取脸部特征的方法和装置
    • US20080130962A1
    • 2008-06-05
    • US11828651
    • 2007-07-26
    • Yongjin LEEKi-Young MOONKyo-II CHUNG
    • Yongjin LEEKi-Young MOONKyo-II CHUNG
    • G06K9/00
    • G06K9/00288G06K9/00275
    • A method and apparatus for extracting a face feature to construct a face search system having a high recognition rate are provided. The method includes calculating an average image of each of a plurality of candidates having one or more face images to which different weights are given according to an order in which the face images are acquired and calculating a total average image of all face images of the plurality of candidates, calculating a between-class scatter matrix based on a difference between each candidate's average image and the total average image and a within-class scatter matrix based on a difference between each candidate's average image and each candidate's predetermined face image of the one or more face images, and generating a base vector that maximizes a criterion defined by a ratio between the between-class scatter matrix and the within-class scatter matrix.
    • 提供了一种用于提取面部特征以构建具有高识别率的面部搜索系统的方法和装置。 该方法包括根据获取脸部图像的顺序来计算具有一个或多个面部图像的多个候选者中的每一个的平均图像,并且计算多个面部图像的全部平均图像 基于每个候选人的平均图像与总平均图像之间的差异以及基于每个候选者的平均图像与每个候选者的平均图像与每个候选者的预定面部图像之间的差异的类内分散矩阵来计算类间散布矩阵, 并且生成最大化由类间散布矩阵和类内散布矩阵之间的比率定义的标准的基本向量。
    • 4. 发明申请
    • Iris recognition method and apparatus thereof
    • 虹膜识别方法及其装置
    • US20080069410A1
    • 2008-03-20
    • US11702863
    • 2007-02-06
    • Jong Gook KoYoun Hee GilJang Hee YooKyo II Chung
    • Jong Gook KoYoun Hee GilJang Hee YooKyo II Chung
    • G06K9/00
    • G06K9/0061
    • An iris recognition method is provided. In the iris recognition method, binary image data is obtained by receiving eye image data and filtering the received eye image data using a predetermined threshold value. Then, candidate center search regions are searched for finding a pupil center using profile information of rows and columns of the binarized image. a pupil boundary and a center point are detected by performing a mask operation using 8 pupil boundary mask templates for each of concentric circles formed of pointes in the searched candidate center search regions as candidate pupil centers and different radiuses. An iris boundary region is detected by performing a masking operation using 6 iris boundary mask templates corresponding to 6 locations for concentric circles formed of the pupil center as an origin and different radiuses.
    • 提供虹膜识别方法。 在虹膜识别方法中,通过接收眼睛图像数据并使用预定阈值对接收到的眼睛图像数据进行滤波来获得二值图像数据。 然后,使用二进制化图像的行和列的轮廓信息来搜索候选中心搜索区域以找到瞳孔中心。 通过对作为候选瞳孔中心和不同半径的搜索到的候选中心搜索区域中由点形成的每个同心圆进行8个瞳孔边界掩模模板,对瞳孔边界和中心点进行掩模操作。 通过使用对应于由瞳孔中心形成的同心圆的6个位置的6个虹膜边界掩模模板作为原点和不同的半径来执行掩模操作来检测虹膜边界区域。
    • 6. 发明申请
    • Apparatus and method for unifying multiple radio frequency idenfications
    • 统一多射频识别的装置和方法
    • US20080068137A1
    • 2008-03-20
    • US11584155
    • 2006-10-20
    • You KangHo KimKyo II Chung
    • You KangHo KimKyo II Chung
    • H04Q5/22
    • H04W12/02H04L9/3271H04L63/0435H04L63/0442H04L2209/805
    • An apparatus and method for unifying multiple radio frequency identifications (RFIDs) are provided. The apparatus includes: a data arithmetic operator collecting RFIDs, storing the collected RFIDs, and repeatedly performing the collection and storage when a time out event occurs; a hash arithmetic operator concatenating the RFIDs, hashing the concatenated RFIDs, and outputting a hashed single value; a random number generator generating a random number used as an encryption factor to public-key-encrypt the single value; an RFID tag processor controlling locking/unlocking of the RFID tags; a public key arithmetic operator public-key-encrypting the single value using a predetermined public key and the random number as encryption factors and outputting a cipher text; and a radio frequency communicator converting the cipher text into a radio signal and sending the radio signal to a radio section. Information transmitted to a radio section is a cipher text obtained by public-key-encrypting the single value. Therefore, the number of the RFID tags belonging to a user is not exposed to an eavesdropper, thereby protecting user's privacy.
    • 提供了一种用于统一多射频识别(RFID)的装置和方法。 该装置包括:收集RFID的数据运算运算器,存储收集的RFID,并且在发生超时事件时重复执行收集和存储; 连接RFID的散列算术运算器,对级联的RFID进行散列,并输出散列值; 产生用作公开密钥加密单个值的加密因子的随机数的随机数生成器; 控制RFID标签的锁定/解锁的RFID标签处理器; 公钥算术运算公共密钥 - 使用预定公钥加密单个值,并且随机数作为加密因子并输出密文; 以及将密文转换为无线电信号并将无线电信号发送到无线电部分的射频通信器。 发送到无线电部分的信息是通过公钥加密单个值获得的密文。 因此,属于用户的RFID标签的数量不会暴露给窃听者,从而保护用户的隐私。
    • 8. 发明申请
    • Apparatus and method for computing SHA-1hash function
    • 用于计算SHA-1hash函数的装置和方法
    • US20050144204A1
    • 2005-06-30
    • US10917685
    • 2004-08-12
    • Yun LeeSung JunYoung ParkSang LeeYoung KimKyo II Chung
    • Yun LeeSung JunYoung ParkSang LeeYoung KimKyo II Chung
    • G06F7/06G06F7/00H04L9/32
    • H04L9/0643
    • An apparatus and method for computing a SHA-1 hash function value are provided. The apparatus includes a first register unit including a plurality of registers that store a first bit string of predetermined lengths for generation of a hash function value; a second register unit storing input data in units of second bit strings with predetermined lengths, and sequentially outputting the second bit strings; a third register unit performing an operation on the first bit string of the plurality of registers and the second bit strings output from the second register unit so as to generate and store a third bit string, and updating first-bit string of the plurality of registers based on the third bit string; and an adding unit combining the first bit string stored in the first register unit, the first bit string of the third bit string stored in the third register unit, and the original initial values stored in the first register unit so as to obtain a hash function value. Accordingly, it is possible to reduce the size of the apparatus and stably compute a hash function value at a high speed.
    • 提供了一种用于计算SHA-1散列函数值的装置和方法。 该装置包括:第一寄存器单元,包括多个寄存器,用于存储用于生成散列函数值的预定长度的第一位串; 第二寄存器单元,以预定长度的第二位串为单位存储输入数据,并顺序地输出第二位串; 第三寄存器单元,对所述多个寄存器中的第一位串执行操作,以及从所述第二寄存器单元输出的所述第二位串,以产生和存储第三位串,并且更新所述多个寄存器中的第一位串 基于第三位串; 以及添加单元,组合存储在第一寄存器单元中的第一位串,存储在第三寄存器单元中的第三位串的第一位串和存储在第一寄存器单元中的原始初始值,以获得散列函数 值。 因此,可以减小装置的尺寸并且可以高速稳定地计算散列函数值。