Systems and methods for detecting and managing fingerprint sensor artifacts
US10572749B1 · kind B1 · utility
5Cited by
5References
26Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 14, 2018 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Sep 15, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1335
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for identifying and managing fixed sensor artifacts, such as scratches and non-operational sensor pixels, in a biometric sensor. A plurality of images acquired by the biometric sensor in response to detection of a biometric object proximal to a sensing surface of the biometric sensor are processed to determine a pixel value for each pixel location in each image. One or more specific pixel locations having substantially the same pixel value in the plurality of images are identified an artifact pattern of the biometric sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.