Compensation of ambient illumination
US8553103B1 · kind B1 · utility
16Cited by
0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2009 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Oct 11, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/74
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Compensation of ambient illumination. A visible image of an object with ambient illumination is captured. Image brightness of at least a portion of said object of said visible image is sampled. A difference between sampled image brightness of at least said portion of said object and a target brightness profile is determined. The difference is compensated for by projecting additional illumination onto said object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.