White balance adjustment of an image at an information handling system
US9432617B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2011 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Apr 12, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/88
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Videoconferencing images captured by a video camera in suboptimal lighting conditions are enhanced by analyzing light associated with a portion of the video camera field of view and applying that analysis for white balance of the entire field of view. For example, the face or silhouette of a videoconference participant is detected within the camera field of view so that light within a perimeter of the face or silhouette is analyzed to determine a white balance correction for application to the entire field of view. To reduce the impact of the white balance correction factor based upon the area within a silhouette participant, the image outside the perimeter may be subdued, such as with blurring or dimming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.