发明授权
- 专利标题: Iris code generation method, individual authentication method, iris code entry device, individual authentication device, and individual certification program
- 专利标题(中): 虹膜代码生成方法,个人认证方法,虹膜代码输入设备,个人认证设备和个人认证程序
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申请号: US10544803申请日: 2004-07-16
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公开(公告)号: US07379567B2公开(公告)日: 2008-05-27
- 发明人: Takeo Azuma , Kenji Kondo , Masahiro Wakamori
- 申请人: Takeo Azuma , Kenji Kondo , Masahiro Wakamori
- 申请人地址: JP Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: Harness, Dickey & Pierce, PLC
- 优先权: JP2003-275954 20030717
- 国际申请: PCT/JP2004/010573 WO 20040716
- 国际公布: WO2005/008590 WO 20050127
- 主分类号: G06K9/00
- IPC分类号: G06K9/00
摘要:
A plurality of images that include the same eye is input (S11) and iris regions are extracted therefrom to obtain iris images (S12). After the plural iris images are subjected to transformation from a rectangular coordinate system to a polar coordinate system (S13) and rotational compensation (S14), the images are added together while a weight is attached to a pixel value in each coordinate of the polar coordinate system, to accumulate them as a single iris image (S15). An iris code is generated from the thus obtained single iris image (S16, S17).
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