Systems and methods of biometric analysis with adaptive trigger
US10373008B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2017 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Jul 20, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/689
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Exemplary embodiments are directed to biometric analysis systems including one or more illumination sources configured to provide dim illumination to a scene including an object and configured to provide flash illumination to the object in the scene. The biometric analysis systems include a rolling shutter camera configured to capture one or more images. The biometric analysis systems include an adaptive trigger module configured to analyze the scene to detect the object in the scene during dim illumination of the scene, determine a position in a frame of the rolling shutter camera that coincides with the detected object in the scene, and arrange a delay between a start of image writing by the rolling shutter camera and a trigger of the one or more illumination sources such that a stripe of the flash illumination coincides with the detected object in the scene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.