发明名称 |
Fingerprint representation using gradient histograms |
摘要 |
Techniques for generating a gradient characterization for a first fingerprint image are provided. One or more fingerprint feature points are selected from the first fingerprint image. A region is obtained for each of the one or more selected fingerprint feature points. The region is a representation of an area proximate a given fingerprint feature point. Each of the obtained regions is divided into a plurality of sub-regions. A histogram is generated for each of the plurality of sub-regions. For each of the one or more selected fingerprint feature points, the one or more generated histograms are combined into a concatenated histogram. The concatenated histogram is used for identification purposes. |
申请公布号 |
US8625861(B2) |
申请公布日期 |
2014.01.07 |
申请号 |
US20080120936 |
申请日期 |
2008.05.15 |
申请人 |
AGGARWAL GAURAV;BOLLE RUDOLF MAARTEN;JEA TSAI-YANG;RATHA NALINI KANTA;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
AGGARWAL GAURAV;BOLLE RUDOLF MAARTEN;JEA TSAI-YANG;RATHA NALINI KANTA |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|