公开(公告)号：US20100008552A1

公开(公告)日：2010-01-14

申请号：US12418707

申请日：2009-04-06

Applicant: Yo-shik SHIN ,  Geum-yong KIM ,  Ji-Ho LEE

Inventor： Yo-shik SHIN ,  Geum-yong KIM ,  Ji-Ho LEE

IPC: G06K9/00

CPC classification number: G06K9/0012

Abstract: An apparatus for distinguishing living body fingerprint from artificial fingerprint and a method thereof are provided. A living body recognition unit determines whether fingerprint in question is living body fingerprint or not, based on the unique color of the living body fingerprint and a change of the fingerprint color which is caused due to a change of contact pressure when the living body fingerprint is contacted with the fingerprint input window. A fingerprint recognition apparatus computes color information from the fingerprint image acquired by the color image sensor, and color change information based on the change of contact pressure, and determines whether the fingerprint in question is the living body fingerprint by determining whether or not the computed color information meets a reference color range and/or if the color change information meets a reference condition.

Abstract translation: 提供了用于区分生物体指纹和人造指纹的装置及其方法。 生物体识别单元基于生物体指纹的独特颜色以及由于当生物体指纹图像时的接触压力的变化而引起的指纹颜色的变化，确定所述指纹是否为生体指纹 与指纹输入窗口联系。 指纹识别装置从由彩色图像传感器获得的指纹图像和基于接触压力的变化的颜色变化信息计算颜色信息，并且通过确定所计算的颜色是否是生物体指纹来确定所述指纹是否为活体指纹 信息满足参考颜色范围和/或如果颜色变化信息满足参考条件。

公开(公告)号：US20130057669A1

公开(公告)日：2013-03-07

申请号：US13597841

申请日：2012-08-29

Applicant: Yo-shik SHIN ,  Geum-yong KIM

Inventor： Yo-shik SHIN ,  Geum-yong KIM

IPC: H04N7/18

CPC classification number: G02B27/0025 ,  G02B3/06 ,  G06K9/00046

Abstract: Provided is an optical fingerprint acquisition apparatus. The fingerprint acquisition apparatus has an improved optical lens unit and can correct distortion of an image caused by a light refractor. The optical lens unit includes two cylindrical lenses disposed so that an optical axis of incident light does not coincide with a central axis of the lenses. The optical lens unit corrects an image that is distorted into a rectangle by a light refractor, thereby restoring a square shape. In particular, the fingerprint acquisition apparatus is useful in the simultaneous acquisition of multiple fingerprints as well as the acquisition of a single fingerprint.

Abstract translation: 提供了一种光学指纹获取装置。 指纹获取装置具有改进的光学透镜单元，并且可以校正由光折射器引起的图像的变形。 光学透镜单元包括设置成入射光的光轴不与透镜的中心轴线重合的两个柱面透镜。 光学透镜单元通过光折射器校正被扭曲成矩形的图像，从而恢复正方形形状。 特别地，指纹获取装置在同时获取多个指纹以及单个指纹的获取中是有用的。

公开(公告)号：US20100303311A1

公开(公告)日：2010-12-02

申请号：US12787579

申请日：2010-05-26

Applicant: Yo-shik SHIN ,  Geum-yong KIM ,  Ji-Ho LEE

Inventor： Yo-shik SHIN ,  Geum-yong KIM ,  Ji-Ho LEE

IPC: G06K9/00

CPC classification number: G06K9/00013 ,  G06K9/00912 ,  G06K9/036

Abstract: A fingerprint recognition apparatus and a method thereof of acquiring fingerprint data are provided. The fingerprint recognition apparatus acquires a user's fingerprint image through a fingerprint sensor, extracts information regarding a fingerprint size, a fingerprint position, a degree of fingerprint contact and a condition of minutiae points, and displays a corresponding error message and guide information through a display unit to encourage a reinput of fingerprint, if determining that the extracted information is not within a predetermined range. As a result, the user is encouraged to input a best quality fingerprint to allow extraction of good print data for either fingerprint enrollment or authentication. The information provided to the user may practically include detailed error and guide information regarding the fingerprint size, a degree with which a fingerprint is pushed to a certain side, a degree of contact or humidity of a fingerprint.

Abstract translation: 提供了一种获取指纹数据的指纹识别装置及其方法。 指纹识别装置通过指纹传感器获取用户的指纹图像，提取关于指纹大小，指纹位置，指纹接触度和细节点状况的信息，并通过显示单元显示相应的错误消息和指导信息 如果确定所提取的信息不在预定范围内，则鼓励指纹的再输入。 因此，鼓励用户输入最佳质量指纹，以便提取用于指纹注册或认证的良好打印数据。 提供给用户的信息实际上可以包括关于指纹大小的详细错误和指导信息，指纹被推送到某一方的程度，指纹的接触程度或湿度。

公开(公告)号：US20100098302A1

公开(公告)日：2010-04-22

申请号：US12254471

申请日：2008-10-20

Applicant: Yo-shik SHIN ,  Geum-yong Kim

Inventor： Yo-shik SHIN ,  Geum-yong Kim

IPC: G06K9/00

CPC classification number: G06K9/0012 ,  G06K9/00906

Abstract: An apparatus for distinguishing forged fingerprint and a method thereof are disclosed. A different threshold angle for total reflection is applied when forged fingerprint is touched on a fingerprint input surface of a prism, and the forged fingerprint distinguishing apparatus and method use the above fact. Accordingly, using a separate light source, from which a ray of light is emitted with a light axis at a predetermined range of incident angle, acquired fingerprint image is compared and it is determined whether the fingerprint image corresponds to authentic fingerprint or forged one.

Abstract translation: 公开了一种用于区分伪指纹的装置及其方法。 当伪造的指纹在棱镜的指纹输入表面上被触摸时，应用全反射的不同阈值角，并且伪造的指纹识别装置和方法使用上述事实。 因此，使用分离的光源，以入射角的预定范围内的光轴发射光线，比较获取的指纹图像，并且确定指纹图像是否对应于真实指纹或伪造的指纹图像。