发明名称 |
Fingerprint image forming apparatus, finger movement amount calculation method, and fingerprint image forming method |
摘要 |
A disclosed apparatus for forming a fingerprint image includes a partial sensor configured to obtain partial images of a fingerprint of a finger moving over the partial sensor; a reference image storing unit configured to store a reference partial image; and an image difference calculating unit configured to calculate a reference image difference between the reference partial image and a first partial image, to calculate a current image difference between the reference partial image and a second partial image, to calculate an amount of movement and/or a position of the finger based on a ratio of the current image difference to the reference image difference, and to store the second partial image and/or the first partial image as parts of the fingerprint image to be formed if the amount of movement and/or the position of the finger is equal to or greater than a predetermined value.
|
申请公布号 |
US2008317290(A1) |
申请公布日期 |
2008.12.25 |
申请号 |
US20070895669 |
申请日期 |
2007.08.27 |
申请人 |
MITSUMI ELECTRIC CO., LTD. |
发明人 |
TAZOE NAOKI |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|