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21. 发明申请

US20050254690A1 Personal authentication device 有权
标题翻译：个人认证设备
公开(公告)号：US20050254690A1
公开(公告)日：2005-11-17
申请号：US11169914
申请日：2005-06-30
申请人： Akio Nagasaka , Takafumi Miyatake , Naoto Miura , Yuichi Kashimura
发明人： Akio Nagasaka , Takafumi Miyatake , Naoto Miura , Yuichi Kashimura
IPC分类号： A61B5/117 , G06K9/00 , G06T1/00 , G07C9/00
CPC分类号： G06K9/00 , G06K9/00013 , G06K2009/00932 , G07C9/00158
摘要： A compact authentication device that prevents user from feeling pressure and is strong against external light, when capturing an image of a finger blood vessel pattern with transmitted light. The device includes a guidance part for determining the finger position, a light source disposed on at least one side of the guidance part to emit light to be transmitted though the finger, an image capture part for capturing the transmitted light, a shading unit for limiting an irradiation region of the light, a finger thickness measuring unit, a unit for controlling a light amount of the light source based on a result of the measurement, a unit for recording registered image patterns of the finger, a unit for collating a captured image pattern from the image capture part with the registered patterns, and a unit for controlling different processing according to the collation result.
摘要翻译：当用透射光捕获手指血管图案的图像时，防止使用者感到压力并抵抗外部光线的紧凑认证装置。该装置包括用于确定手指位置的引导部分，设置在引导部分的至少一侧以发射通过手指透射的光的光源，用于捕获透射光的图像捕获部分，用于限制光的照射区域，手指厚度测量单元，用于基于测量结果控制光源的光量的单元，用于记录手指的登记图像图案的单元，用于对照捕获图像的单元来自具有注册图案的图像捕捉部分的图案，以及用于根据核对结果控制不同处理的单元。

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