Image capturing apparatus and control method thereof using amplification ratio based on current accumulated exposure time
US8379131B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2009 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Aug 26, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/134
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image capturing apparatus including: an image sensor generating an image signal; a photographing control section performing a photographing operation in which an exposure of the image sensor is divided into a plurality of exposures in accordance with a predetermined exposure time; an addition section adding sequentially the image signals obtained at each exposure; an amplification ratio calculation section calculating an amplification ratio of the added image signal on the basis of the predetermined exposure time; an amplification section amplifying the added image signal by using the amplification ratio to compensate for insufficient exposure for the predetermined exposure time; and a display control section displaying information related to the amplified image signal; wherein the photographing control section ends the photographing operation when instructed by a user, and determines that the amplified image signal is a captured image obtained by performing the photographing operation with the predetermined exposure time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.