Fingerprint identification apparatus and fingerprint identification method
US7248722B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 30, 2002 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Jan 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1365
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
By employing template matching using a collation image which is obtained by using a proper technique to binarize an input digital image for fingerprint identification, and a plurality of templates which are recorded beforehand, a fingerprint identification apparatus and method determine whether identity is established between the collation image and each of the recorded images from which recorded templates are extracted. Instead of checking positional relationships among all addresses having high degrees of matching detected for each template, positional relationship checking is performed between addresses detected about adjacent templates. This can greatly reduce the number of combinations for matching, and enables rapid processing. The fingerprint identification apparatus and method are resistant to a change in finger shape since they perform processing for physically close templates, compared with the case of performing processing for separate templates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.