Method and chip for biometric characteristic acquisition, and computer readable storage medium
US11776306B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2022 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Jun 23, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/67
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Some embodiments of the present disclosure relate to biometric characteristic detection technology, which provide a method and chip for biometric characteristic acquisition, and a computer readable storage medium. The method for biometric characteristic acquisition includes: acquiring a plurality of configuration parameters, where the plurality of configuration parameters include a first exposure duration, parameters defining a first region and a target photosensitive value, where the first region is a local region in a photosensitive region of the chip for biometric characteristic acquisition; exposing the first region according to the first exposure duration, and acquiring a photosensitive value of the first region; determining a second exposure duration required to acquire the target photosensitive value in the photosensitive region according to the photosensitive value of the first region and the first exposure duration; and acquiring a biometric image according to the second exposure duration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.