发明名称 |
Method and apparatus for scanning a fingerprint using a linear sensor |
摘要 |
A method and apparatus for scanning a fingerprint using a linear optical sensor. A finger or palm is rolled over a transparent roller. A light source directs light through the roller to illuminate or detect the finger. Light directed through the roller is focused onto a linear imaging device. A full 2D recreation of the fingerprint is assembled from the discrete line-image data collected by the linear array imaging sensor. The apparatus contains a rotation detector to detect rotational movement of the roller. A finger guide positioned adjacent to the roller prevents distortion of the finger due to excess pressure. |
申请公布号 |
AU4218699(A) |
申请公布日期 |
1999.12.20 |
申请号 |
AU19990042186 |
申请日期 |
1999.05.27 |
申请人 |
DIGITALPERSONA, INC. |
发明人 |
KENNETH BROWNLEE |
分类号 |
G06T1/00;A61B5/117;G06K9/00;G07C9/00 |
主分类号 |
G06T1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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