Image capturing apparatus capable of obtaining proper exposure in short time, method of controlling same, and storage medium
US11438532B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2021 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Jul 12, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/75
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image capturing apparatus includes an image capturing device capable of performing a plurality of charge accumulation operations within the same time period of a vertical synchronization signal. A follow-up control value and a first predicted control value which is more distant from a current control value than the follow-up control value in a direction of change are set based on a photometry result using the current control value. When at least one of proper differences between the follow-up control value and the first predicted control and respective photometric values obtained therewith is not larger than a predetermined allowable value, the photometric value associated therewith is determined as a proper exposure. The current control value is an initial value or one of the photometric values in a case where the proper differences are both larger than the predetermined allowable value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.