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    • 1. 发明授权
    • Surface shape recognizing sensor device
    • 表面形状识别传感器装置
    • US07606399B2
    • 2009-10-20
    • US10582128
    • 2005-07-15
    • Hiroki MorimuraMamoru NakanishiSatoshi ShigematsuTakahiro HatanoYukio OkazakiKatsuyuki Machida
    • Hiroki MorimuraMamoru NakanishiSatoshi ShigematsuTakahiro HatanoYukio OkazakiKatsuyuki Machida
    • G06K9/00
    • G06K9/0002A61B5/1172A61B2562/0209A61B2562/046
    • A sensor cell includes a sensor electrode (101) formed on a substrate (100), a signal output unit (16) which outputs a signal corresponding to a capacitance (Cf) formed between the sensor electrode and the surface of a finger (3), a high-sensitivity electrode (103) formed on the substrate so as to be insulated and isolated from the sensor electrode, and a potential controller (14) which controls the potential of the finger surface via a capacitance (Cc) formed between the high-sensitivity electrode and the finger surface by controlling the potential of the high-sensitivity electrode. In this arrangement, when the resistance of the finger is high, the potential of the finger surface can be controlled so as not to fluctuate with the potential change of the sensor electrode. This makes it possible to increase the sensitivity of detection of the capacitance formed between the sensor electrode and the finger surface, so ridges and valleys of the finger surface can be clearly discriminated by outputs from a plurality of sensor cells.
    • 传感器单元包括形成在基板(100)上的传感器电极(101),输出对应于形成在传感器电极和手指表面之间的电容(Cf)的信号的信号输出单元(16) ,形成在所述基板上以与所述传感器电极绝缘和隔离的高灵敏度电极(103),以及电位控制器(14),其经由形成在所述高电平之间的电容(Cc)来控制所述手指表面的电位 通过控制高灵敏度电极的电位,感光电极和手指表面。 在这种布置中,当手指的电阻高时,手指表面的电位可以被控制成不会随着传感器电极的电位变化而波动。 这使得可以提高检测传感器电极和手指表面之间的电容的灵敏度,因此可以通过多个传感器单元的输出来清楚地识别手指表面的脊和谷。
    • 2. 发明申请
    • Surface Shape Recognizing Sensor Device
    • 表面形状识别传感器装置
    • US20080056543A1
    • 2008-03-06
    • US10582128
    • 2005-07-15
    • Hiroki MorimuraMamoru NakanishiSatoshi ShigematsuTakahiro HatanoYukio OkazakiKatsuyuki Machida
    • Hiroki MorimuraMamoru NakanishiSatoshi ShigematsuTakahiro HatanoYukio OkazakiKatsuyuki Machida
    • G06K9/00A61B5/117G01B7/28
    • G06K9/0002A61B5/1172A61B2562/0209A61B2562/046
    • A sensor cell includes a sensor electrode (101) formed on a substrate (100), a signal output unit (16) which outputs a signal corresponding to a capacitance (Cf) formed between the sensor electrode and the surface of a finger (3), a high-sensitivity electrode (103) formed on the substrate so as to be insulated and isolated from the sensor electrode, and a potential controller (14) which controls the potential of the finger surface via a capacitance (Cc) formed between the high-sensitivity electrode and the finger surface by controlling the potential of the high-sensitivity electrode. In this arrangement, when the resistance of the finger is high, the potential of the finger surface can be controlled so as not to fluctuate with the potential change of the sensor electrode. This makes it possible to increase the sensitivity of detection of the capacitance formed between the sensor electrode and the finger surface, so ridges and valleys of the finger surface can be clearly discriminated by outputs from a plurality of sensor cells.
    • 传感器单元包括形成在基板(100)上的传感器电极(101),输出对应于形成在传感器电极和手指表面之间的电容(Cf)的信号的信号输出单元(16) ,形成在所述基板上以与所述传感器电极绝缘和隔离的高灵敏度电极(103),以及电位控制器(14),其经由形成在所述高电平之间的电容(Cc)来控制所述手指表面的电位 通过控制高灵敏度电极的电位,感光电极和手指表面。 在这种布置中,当手指的电阻高时,手指表面的电位可以被控制成不会随着传感器电极的电位变化而波动。 这使得可以提高检测传感器电极和手指表面之间的电容的灵敏度,因此可以通过多个传感器单元的输出来清楚地识别手指表面的脊和谷。
    • 8. 发明授权
    • Biometric image collation apparatus and collation method therefor
    • 生物图像对比装置及其对照方法
    • US07673145B2
    • 2010-03-02
    • US10515566
    • 2004-03-05
    • Takahiro HatanoSatoshi ShigematsuHiroki MorimuraNamiko IkedaYukio OkazakiKatsuyuki MachidaMamoru Nakanishi
    • Takahiro HatanoSatoshi ShigematsuHiroki MorimuraNamiko IkedaYukio OkazakiKatsuyuki MachidaMamoru Nakanishi
    • H04L9/00
    • G06K9/00067G06K9/00087G06K9/036
    • This invention includes an image quality priority level decision processing unit (40) which evaluates the magnitude of an image quality of each of a plurality of first image data formed from biometric images associated with the same target on the basis of a specific index having the relationship of a monotone function with authentication accuracy of biometric authentication, and outputs each of the first image data upon adding a priority level thereto on the basis of the evaluation result, a first image storage (6, 81) unit which stores each of the first image data having a priority level added thereto from the image quality priority level decision processing unit (40), a second image storage unit (8, 61) which stores second image data used for comparison/collation with the first image data, an image collation unit (7) which compares/collates the second image data stored in the second image storage unit (8, 61) with the first image data stored in the first image storage unit (6, 81) and outputs the comparison/collation result, and a control unit (9) which controls each of the units. The control unit (9) causes the image collation unit (7) to compare/collate the second image data stored in the second image storage unit (8, 61) with the first image data stored in the first image storage unit (6, 81) in accordance with the priority levels, and outputs the comparison/collation result from the image collation unit (7).
    • 本发明包括图像质量优先级决定处理单元(40),其根据具有关系的特定索引来评估由与相同目标相关联的生物特征图像形成的多个第一图像数据中的每一个的图像质量的大小 具有生物体认证的认证精度的单调函数,并且基于评估结果向其添加优先级,并输出每个第一图像数据;第一图像存储器(6,81)单元,其存储每个第一图像 从图像质量优先级判定处理单元(40)向其添加优先级的数据,存储用于与第一图像数据进行比较/对照的第二图像数据的第二图像存储单元(8,61),图像对照单元 (7),其将存储在第二图像存储单元(8,61)中的第二图像数据与存储在第一图像存储单元(6,81)中的第一图像数据进行比较/比较 d输出比较/核对结果,以及控制单元(9)。 控制单元(9)使图像核对单元(7)将存储在第二图像存储单元(8,61)中的第二图像数据与存储在第一图像存储单元(6,81中)的第一图像数据进行比较/ ),并且从图像对照单元(7)输出比较/核对结果。