Pulsed light imaging using rolling shutter image sensors
US11528434B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2021 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Dec 27, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/134
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging system and method for imaging a scene using a rolling shutter are described. In an embodiment, the method includes illuminating a scene with first and second illumination light; generating frame signals with a photodetector comprising a plurality of pixels arranged in a plurality of rows, wherein the frame signals are based on light received from the scene with sequentially integrated rows of pixels of the plurality of rows, and wherein a frame signal includes signals from pixels of each of the plurality of rows; and generating images of the scene based on an intensity of the frame signals and the proportion of the first illumination light and the second illumination light emitted onto the scene during the first and second frames, wherein a proportion of the first illumination light and the second illumination light in a first frame is different than in a second frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.