Method and system for estimating finger movement with selection of navigation subareas
US9971434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2016 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Dec 17, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/62
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of estimating a finger movement comprising acquiring a navigation evaluation image from each of at least three navigation subareas of a fingerprint sensor; determining, for each of the navigation evaluation images, a navigation-related property of the navigation evaluation image; evaluating the navigation-related properties to find a combination of at least a first navigation-related property and a second navigation-related property that fulfills a navigation requirement; and selecting at least a first navigation subarea related to the first navigation-related property and a second navigation subarea related to the second navigation-related property. The finger movement is then estimated using a sequence of first navigation images acquired using the first navigation subarea, and a sequence of second navigation images acquired using the second navigation subarea.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.