Title:
IMAGING DEVICE, AND FOCUS CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2015/141084
Kind Code:
A1
Abstract:
Provided are an imaging device and a focus control method with which, even in cases when the detection-signal levels of phase-difference-detection pixels are low, the accuracy of focus control can be improved, regardless of the object. A phase difference AF processing unit (19) generates a defocus amount (Df1) from the result of a correlation calculation between detection signals, said result being obtained by adding: the detection signals of a plurality of phase-difference-detection pixels (52A, 52B) in a pair line (PL1) in a selected AF area (53); and the detection signals of phase-difference-detection pixels (52A, 52B) in pair lines (PL2, PL3) in directions selected, from among a plurality of directions, as intersecting directions intersecting X directions of each of the aforementioned plurality of phase-difference-detection pixels (52A, 52B). A system control unit (11) performs focus control on the basis of the defocus amount (Df1).
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Inventors:
AOKI TAKASHI (JP)
OHTSUKI YASUO (JP)
OHTSUKI YASUO (JP)
Application Number:
PCT/JP2014/083356
Publication Date:
September 24, 2015
Filing Date:
December 17, 2014
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B7/34; G03B13/36; G03B17/00; H04N5/232
Foreign References:
| JP2011135191A | 2011-07-07 | |||
| JP2010152161A | 2010-07-08 | |||
| JP2013186187A | 2013-09-19 |
Attorney, Agent or Firm:
ODAHARA Shuichi et al. (JP)
Shuichi Odawara (JP)
Shuichi Odawara (JP)
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