Image sensing apparatus and control method
US8040415B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2007 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Mar 13, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/72
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensing apparatus that controls exposure includes a signal processing unit for processing the output signal of a image sensing element, an aperture control unit for controlling aperture, and an external sensor for measuring the brightness of an object. In this case, exposure is controlled using the luminance information of both the image data and the external sensor, with the sampling period of the external sensor being set to be shorter than the accumulation period of the solid-state image sensing element. At least one of the aperture and the accumulation period is then controlled, based on the luminance information measured by the external sensor during the accumulation period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.