公开(公告)号：WO1986005903A1

公开(公告)日：1986-10-09

申请号：PCT/US1986000635

申请日：1986-04-01

Applicant: FINGERMATRIX, INC.

Inventor： FINGERMATRIX, INC. ,  SCHILLER, Michael

IPC: G06K09/00

CPC classification number: G07C9/00158 ,  G06K9/00006

Abstract: A set of Search identification points (16) derived from an optical scan (12) of a finger are compared against File identification (18) points for the same finger. A multiple comparator (20) divides the finger image into multiple segments. The Search and File points from each segment are compared separately. A difference table (D.T.) (22) provides a proximity value Q for each search point. The D.T. is purged (28, 30) of all entries representing multiple Search points. The purge keeps those entries having the highest Q value. The purged D.T. with recalculated Q values is the basis for correcting the position of each Search point on the image plane to compensate for shift in finger position and for the variable distortion and changes that come about in a finger over time and upon successive applications of the finger to input scan (40). The corrected Search points are compared against the File points to establish a new D.T. A proximity value Q for each entry on this D.T. is calculated and a proximity value Q for the entire table is calculated. These proximity values in view of the number of entries on the difference table are used to verify identification in a scoring routine (52).

Abstract translation: 将从手指的光学扫描（12）导出的一组搜索识别点（16）与同一手指的文件识别（18）点进行比较。 多重比较器（20）将手指图像划分成多个段。 每个段的搜索和文件点分别进行比较。 差分表（D.T.）（22）为每个搜索点提供接近值Q。 清除D.T.（28,30）表示多个搜索点的所有条目。 清除保持那些具有最高Q值的条目。 具有重新计算的Q值的清除的DT是校正图像平面上每个搜索点的位置的基础，以补偿手指位置上的移动以及随着时间的推移在手指中随之而来的可变失真和变化 手指输入扫描（40）。 将校正的搜索点与文件点进行比较以建立新的D.T.计算该D.T.上的每个条目的接近度Q，并计算整个表的接近度Q。 鉴于差异表上的条目数量，这些接近值用于验证评分程序中的识别（52）。

公开(公告)号：WO1998007063A1

公开(公告)日：1998-02-19

申请号：PCT/IB1997001119

申请日：1997-08-12

Applicant: FINGERMATRIX, INC.

Inventor： FINGERMATRIX, INC. ,  MARCUS, Daniel, H. ,  PEKCAN, Hakan, I. ,  CHILCOTT, William ,  SCHLANG, Arthur

IPC: G02F01/01

CPC classification number: G06K9/00046 ,  G07C9/00158

Abstract: A fingerprint enhancement system has a platen (10) with a liquid contacting and finger-touching surface (12). Two collimated interrogating light beams (30, 40) lie below and are opposite sides of the finger-touching surface. The horizontal extensions of the light beams assume an angle of approximately forty-five degrees with the finger longitudinal axis. Side surfaces of the platen are oriented normal to the incident collimated light beams prior to interrogation. The light beam modulated by the fingerprint passes to a reflecting mirror (20), imaging means (21) and a scanner (22) below platen (10). A polarizing filter lies between platen (10) and reflecting mirror (20). A second polarizing filter (23) lies above platen (10). A contrast enhancement circuit increases the modulation of the scanned fingerprint signal and automatically adjusts the level of the modulated signal without saturation. Circuit filtering eliminates spurious input signals. Finger position sensing by a light emitting diode and photo transistor is also provided.

Abstract translation: 指纹增强系统具有具有液体接触和指触表面（12）的压板（10）。 两个准直询问光束（30,40）位于手指接触表面的下方并且是相对的两侧。 光束的水平延伸部与手指纵向轴线呈大约四十五度的角度。 在询问之前，压板的侧表面垂直于入射的准直光束。 由指纹调制的光束传递到反射镜（20），成像装置（21）和扫描仪（22）在压板（10）下方。 偏振滤光器位于压板（10）和反射镜（20）之间。 第二偏振滤光器（23）位于压板（10）上方。 对比度增强电路增加了扫描指纹信号的调制，并且自动调节调制信号的电平而没有饱和。 电路滤波消除杂散输入信号。 还提供了由发光二极管和光电晶体管进行的手指位置感测。

公开(公告)号：WO1990003620A1

公开(公告)日：1990-04-05

申请号：PCT/US1989003921

申请日：1989-09-12

Applicant: FINGERMATRIX, INC.

Inventor： FINGERMATRIX, INC. ,  CHILCOTT, William, J.

IPC: G06K09/20

CPC classification number: A61B5/1172 ,  G06K9/00026

Abstract: As a live finger (F) is rolled across a glass platen (26) in an optical scan fingerprint apparatus, a series of lights (25) turn on and off to demarcate the line along the platen (26) at which the optical scan is being taken. In this fashion, the finger (F) applied to the platen (26) can be rotated across the platen (26) at a rate that keeps sufficient track with the scan to provide a complete (nail-to-nail) full roll scan.

公开(公告)号：WO1990003146A1

公开(公告)日：1990-04-05

申请号：PCT/US1989003922

申请日：1989-09-12

Applicant: FINGERMATRIX, INC.

Inventor： FINGERMATRIX, INC. ,  SCHILLER, Michael

IPC: A61B05/10

CPC classification number: A61B5/1172

Abstract: A finger is prepared for optical scan fingerprint taking technique wherein the finger is rolled across a glass platen. The preparation involves applying a drop of a liquid such as water to the finger by inserting the finger into a fine mist of the liquid.

Abstract translation: 准备用于光学扫描指纹采集技术的手指，其中手指滚过玻璃台板。 该制剂包括通过将手指插入液体的细雾中将一滴液体（例如水）施加到手指上。