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    • 8. 发明申请
    • Authentication apparatus and authentication method
    • 验证设备和验证方法
    • US20070046662A1
    • 2007-03-01
    • US11507351
    • 2006-08-21
    • Yuichi KawakamiYuusuke Nakano
    • Yuichi KawakamiYuusuke Nakano
    • G06T15/00
    • G06K9/00275
    • An authentication apparatus comprises a first acquiring part for acquiring three-dimensional shape information of a face of a target person to be authenticated, a compressing part for compressing said three-dimensional shape information by using a predetermined mapping relation, thereby generating three-dimensional shape feature information, and an authenticating part for performing an operation of authenticating said target person by using said three-dimensional shape feature information. When a vector space expressing said three-dimensional shape information is virtually separated into a first subspace in which the influence of a change in facial expression is relatively small and which is suitable for discrimination among persons and a second subspace in which the influence of a change in facial expression is relatively large and which is not suitable for discrimination among persons, said predetermined mapping relation is decided so as to transform an arbitrary vector in said vector space into a vector in said first subspace.
    • 认证装置包括:第一获取部,用于获取要认证的目标人物的面部的三维形状信息;压缩部分,用于通过使用预定的映射关系来压缩所述三维形状信息,从而产生三维形状 特征信息,以及用于通过使用所述三维形状特征信息执行认证所述目标人物的操作的认证部分。 当将表示所述三维形状信息的向量空间实际上分成第一子空间,其中面部变化的影响相对较小并且适合于人与第二子空间之间的区别,其中变化的影响 在面部表情相对较大并且不适合于人之间的区分时,所述预定映射关系被确定为将所述向量空间中的任意向量变换成所述第一子空间中的向量。
    • 10. 发明申请
    • Authentication system, registration system, and program
    • 认证系统,注册系统和程序
    • US20070098230A1
    • 2007-05-03
    • US11588025
    • 2006-10-26
    • Toshio NoritaYuichi Kawakami
    • Toshio NoritaYuichi Kawakami
    • G06K9/00
    • G06K9/00288G06K9/00214
    • An authentication system comprises: a generating part for generating face information including at least one of three-dimensional shape information and two-dimensional information in the face of a first person to be authenticated on the basis of measurement information of the first person; a model modifying part for modifying a standard model of a human face by using the face information, thereby generating an individual model of the face of the first person; a calculating part for calculating a first model perfection level as a perfection level of the individual model on the basis of reliability of the face information; an extracting part for extracting first feature information as feature information of the first person from the individual model; an obtaining part for obtaining second feature information as feature information of a second person to be compared which is pre-registered; and an authenticating part for performing an authenticating operation on the first person by using the first model perfection level in addition to similarity between the first feature information and the second feature information.
    • 认证系统包括:产生部件,用于基于第一人的测量信息,生成面对面信息,该面部信息包括面对要认证的第一人的三维形状信息和二维信息中的至少一个; 用于通过使用面部信息来修改人脸的标准模型的模型修改部分,从而生成第一人的面部的个人模型; 计算部分,用于基于面部信息的可靠性计算第一模型完成水平作为个体模型的完美水平; 提取部,用于从所述个人模型中提取作为所述第一人的特征信息的第一特征信息; 获取部分,用于获得第二特征信息作为预先注册的待比较的第二人的特征信息; 以及用于通过使用第一模型完成级别除了第一特征信息和第二特征信息之间的相似性来对第一人员执行认证操作的认证部分。