Systems and methods for automatic exposure of images
US11265484B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2020 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Dec 16, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/75
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An example method includes capturing, by an image capture device, a first image having a plurality of pixels. Each pixel includes a plurality of channels, and the first image is captured in accordance with first exposure parameters. The method includes determining, by a controller of the image capture device, average pixel intensities for each of the plurality of channels. The method includes determining, by the controller, a weighted average of pixel intensities using the average pixel intensities. The method includes setting, by the controller, a gain that is proportional to a ratio of a desired average pixel intensity relative to the weighted average of pixel intensities. The method includes setting, by the controller, second exposure parameters for a second image based on the gain. The method includes capturing, by the image capture device, the second image in accordance with the second exposure parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.