Exposure control methods and apparatus
US9544503B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Mar 22, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/741
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for controlling exposure in a camera device are described. A depth map is used in combination with user selection of a portion of scene as part of an exposure control operation. Exposure control is based on portions of the scene, e.g., in a local window surrounding the user selected point, at the same depth as the user selected portion of the scene with other portions of the scene being excluded from consideration when controlling exposure or being given less weight than the portion or portions at the same depth as the user selected scene portion. Color maybe and in some embodiments is used in combination with depth information to identify an object of interest identified by the user selection. The identified object is then used in some embodiments in making exposure control determinations with portions of a scene outside the object being ignored or given less weight in determining an exposure to be used than the portions corresponding to the identified object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.