Focus adjustment device and focus adjustment method that detects spatial frequency of a captured image
US9800772B2 · kind B2 · utility
1Cited by
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8Claims
0Family size
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Key dates
| Filing date | Jun 6, 2013 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Jun 6, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/672
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided a focus adjustment device including an image sensor including a plurality of phase difference detection pixels that each perform pupil division of a photographing lens, a correction value acquisition unit for acquiring a correction value for a focus position in a spatial frequency of a subject which is obtained by the image sensor, and a focus adjustment unit for adjusting a focus position of the photographing lens based on the correction value acquired by the correction value acquisition unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.