Digital photographing apparatus and control method for evaluating validity of an auto-focus operation
US8711271B2 · kind B2 · utility
3Cited by
4References
25Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 1, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | May 21, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/71
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital photographing apparatus includes an AF region setting unit for setting an AF region, a luminance detection area setting unit for setting a luminance detection area, a luminance calculation unit for calculating luminance values of the AF region and the luminance detection area, and a determination unit for calculating a luminance difference value that is a difference value between the luminance value of the AF region and the luminance value of the luminance detection area, and determining validity of an AF evaluation value with respect to the AF region according to the luminance difference value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.