Intelligent auto-exposure bracketing
US9407831B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2015 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Aug 31, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/741
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques to adaptively select bracket settings during auto-exposure bracket (AEB) operations are described. In general, AEB settings for a current image may be based on the evaluation of prior bracketed images. For example, the current exposure setting established by an auto-exposure mechanism (EV0) may be compared with a prior EV0 image. If the two are consistent, the prior image's lower and upper f-stop setting images (EV− and EV+) may be used to adaptively change the bracket settings for the current image's EV− and EV+ images. In another implementation, the most recently obtained EV− and EV+ images may be used to adaptively change the bracket settings for the current image—no prior capture being necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.