Automatic exposure control apparatus
US6249317A · kind A · utility
50Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1994 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Mar 9, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/643
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An automatic exposure control apparatus comprises a skin color extracting circuit for extracting a skin-colored portion from an input video signal and a focus condition detecting circuit for detecting a focus condition of the skin-colored portion. Exposure is controlled based on outputs of the two circuits. That is, when a skin-colored portion is extracted and it is detected that the skin-colored portion is in an in-focus condition, exposure is controlled so as to be appropriate with respect to the skin-colored portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.