Methods and systems for estimation of visible light amount in a light source
US7885535B2 · kind B2 · utility
3Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2006 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Sep 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J1/0492
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for estimating the amount of visible light in a light source using an image sensor, e.g., such as an image sensor of the type commonly found in color video cameras. The methods and systems may be implemented to use information about the normalized differences of three color components contained in a light source in conjunction with a measure of total light energy of the light source in order to estimate the amount of visible light present in light received by the image sensor from a light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.