Fingerprint matching method and apparatus using fingerprint minutiae and fingerprint binary images
    1.
    发明申请
    Fingerprint matching method and apparatus using fingerprint minutiae and fingerprint binary images 审中-公开
    指纹匹配方法和设备使用指纹细节和指纹二进制图像

    公开(公告)号:US20080085039A1

    公开(公告)日:2008-04-10

    申请号:US11980177

    申请日:2007-10-30

    IPC分类号: G06K9/00

    CPC分类号: G06K9/00087

    摘要: Provided is a fingerprint matching method and apparatus using fingerprint minutiae and fingerprint binary images. The method includes: constructing a template fingerprint database by extracting minutiae information and a binary image of a first fingerprint image; and extracting minutiae information and a binary image of a second fingerprint image to be authenticated and performing authentication by aligning the extracted minutiae information and the binary image of the second fingerprint image with data in the template fingerprint database. Accordingly, the fingerprint matching using the fingerprint binary images is additionally performed, thereby reducing a false acceptance rate (FAR) compared to a conventional minutia-based fingerprint authentication method.

    摘要翻译: 提供了使用指纹细节和指纹二进制图像的指纹匹配方法和装置。 该方法包括:通过提取细节信息和第一指纹图像的二进制图像来构建模板指纹数据库; 并提取要认证的第二指纹图像的细节信息和二进制图像,并通过将提取的细节信息和第二指纹图像的二值图像与模板指纹数据库中的数据对齐来进行认证。 因此,与传统的基于细节的指纹认证方法相比,附加地执行使用指纹二进制图像的指纹匹配,从而降低错误接受率(FAR)。

    Method and apparatus for recognizing fingerprint by hiding minutiae
    2.
    发明申请
    Method and apparatus for recognizing fingerprint by hiding minutiae 审中-公开
    通过隐藏细节识别指纹的方法和装置

    公开(公告)号:US20080013804A1

    公开(公告)日:2008-01-17

    申请号:US11607617

    申请日:2006-11-30

    IPC分类号: G06K9/00

    摘要: Provided is a method and apparatus for authenticating a fingerprint by hiding minutiae, securely storing information on the fingerprint, and authenticating the information on the fingerprint in order to prevent the information on the fingerprint from being reused by an attacker who accesses the information on the fingerprint that is stored in a storage unit. The method for recognizing fingerprint by hiding minutiae of a fingerprint adds fake minutiae information to genuine minutiae information, hides fingerprint information using a polynomial, which is generated based on personal intrinsic information, and stores the fingerprint information, thereby securely protecting the fingerprint information from an external attacker, and preventing the fingerprint information accessed by the attacker from being reused since the attacker cannot know the genuine minutiae.

    摘要翻译: 提供了一种通过隐藏细节来认证指纹的方法和装置,安全地存储关于指纹的信息,以及认证关于指纹的信息,以防止指纹信息被访问指纹信息的攻击者重复使用 它被存储在存储单元中。 通过隐藏指纹细节识别指纹的方法将虚假细节信息添加到真实细节信息中,使用基于个人内在信息生成的多项式隐藏指纹信息,并存储指纹信息,从而可靠地保护指纹信息免受 外部攻击者,并防止攻击者访问的指纹信息被重用,因为攻击者无法知道真正的细节。

    Method and apparatus for identifying a fingerprint
    3.
    发明申请
    Method and apparatus for identifying a fingerprint 有权
    用于识别指纹的方法和装置

    公开(公告)号:US20050105783A1

    公开(公告)日:2005-05-19

    申请号:US10830212

    申请日:2004-04-21

    IPC分类号: G06K9/00

    CPC分类号: G06K9/00087

    摘要: Provided are a method and apparatus for identifying a fingerprint. The method uses minutiae points of the fingerprint and includes (a) enrolling a fingerprint of a first user in a first database by extracting n minutiae points from a fingerprint image of the first user; selecting one of the n minutiae points as a reference point; rotating the other minutiae points by a predetermined angle with respect to the reference point; generating a first user table containing information regarding the first user's fingerprint based on geometrical changes of the other minutiae points which are obtained by the rotation; and storing the first user table in the first database; and (b) identifying a fingerprint of a second user by extracting m minutiae points from a fingerprint image of the second user; selecting one of the m minutiae points as a reference point; generating a second user table containing information regarding the second user's fingerprint based on geometric changes of the other minutiae points obtained by rotating the other minutiae points by an angle about the reference point; comparing the second user table with the first user table, and selecting a similar candidate list of user tables (m and n are integers). Accordingly, it is possible to enroll a large amount of information regarding fingerprints in a database using quantization and geometric hashing while using a limited storage memory of a central database. Further, it is possible to accurately identify and detect a user's fingerprint in real time using geometric hashing and parallel processing.

    摘要翻译: 提供了用于识别指纹的方法和装置。 该方法使用指纹的细节点,并且(a)通过从第一用户的指纹图像提取n个细节点,在第一数据库中登记第一用户的指纹; 选择n个细节点之一作为参考点; 使其他细节点相对于参考点旋转预定角度; 基于通过旋转获得的其他细节点的几何变化,生成包含关于第一用户的指纹的信息的第一用户表; 以及将所述第一用户表存储在所述第一数据库中; 以及(b)通过从所述第二用户的指纹图像中提取m个细节点来识别第二用户的指纹; 选择其中一个细节点作为参考点; 基于通过使其他细节点旋转相对于参考点的角度而获得的其他细节点的几何变化,生成包含关于第二用户指纹的信息的第二用户表; 将第二用户表与第一用户表进行比较,并且选择用户表的类似候选列表(m和n是整数)。 因此,在使用中央数据库的有限存储存储器的情况下,可以使用量化和几何散列在数据库中注册大量关于指纹的信息。 此外,可以使用几何散列和并行处理来实时地准确地识别和检测用户的指纹。

    Fingerprint sensor using microlens
    4.
    发明申请
    Fingerprint sensor using microlens 失效
    指纹传感器采用微透镜

    公开(公告)号:US20070041005A1

    公开(公告)日:2007-02-22

    申请号:US11485760

    申请日:2006-07-12

    申请人: Ki Song Dae Moon

    发明人: Ki Song Dae Moon

    IPC分类号: G06K9/74

    CPC分类号: G06K9/0004

    摘要: Provided is a fingerprint sensor using a microlens including the microlens changing a path of light reflected by a fingerprint structure, and an optical-TFT checking the fingerprint structure from the light whose path is changed. Since the microlens including the spherical lens to change the path of light is provided, the amount of light incident on the light measuring area can be maximized. Also, since the noise such as dispersed light is exhausted by the spherical lens outside the light measuring area, the effect by the noise can be minimized.

    摘要翻译: 提供了使用包括微透镜的微透镜的指纹传感器,该微透镜改变由指纹结构反射的光的路径,以及光路TFT,其从路径改变的光检查指纹结构。 由于提供了包括改变光路的球面透镜的微透镜,因此可以使入射到光测量区域的光量最大化。 此外,由于诸如分散光的噪声由球面透镜在光测量区域外部排出,所以可以使噪声的影响最小化。