Frame manipulation to reduce rolling shutter artifacts
US9756250B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2016 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Jun 13, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2101/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor of a camera system captures an image over an image capture interval of time, and waits a blanking interval of time before capturing an additional image. The captured image is provided to a frame controller, and is buffered until an image signal processor accesses the captured image. The image signal processor processes the accessed image over an image processing interval of time, producing a processed image. The image processing interval of time is selected to be greater than the image capture interval of time, but less than the sum of the image capture interval of time and the blanking interval of time. By reducing the image capture interval of time but maintaining an image processing interval of time, rolling shutter artifacts are beneficially reduced without increasing the processing resources or power required by the image signal processor to process the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.