Fingerprint information processing method and apparatus for speed improvement of fingerprint registration and authentication
US9934420B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 6, 2016 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Oct 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20021
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fingerprint information processing method and apparatus in which the method includes: obtaining a fingerprint image; calculating an average value of shading values of pixels in a specific region based on a pixel with respect to each pixel of the fingerprint image, performing a first processing of calculating a sum of average values of shading values of pixels included in an expanded region while gradually expanding the specific region, and generating a first processing image for the fingerprint image using a first processing-performed value for each pixel; and forming a window including a predetermined region in the first processing image, and selecting feature points among pixels in a window region while moving the window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.