Flicker detection using event-based readout circuits
US12088925B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2022 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Sep 13, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/77
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image capture device may include an image sensor having a plurality of light-sensitive pixel sensors to capture light from a scene for generating images and a flicker detection circuit to detect flicker in the light captured by the image sensor. The flicker detection circuit may include one or more event-based readout circuits and at least one event-based processing circuit. The event-based readout circuits may detect a series of events associated with the flicker in the light captured by the image sensor. The event-based processing circuit may determine a frequency of the flicker in the captured light based on the series of events detected by the event-based readout circuits. In some embodiments, the frequency may be used to adjust the exposure time of the image sensor, e.g., to identify intervals for exposure when the captured light is bright.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.