Title:
IMAGING DEVICE, FLICKER DETECTION METHOD, AND FLICKER DETECTION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2016/139846
Kind Code:
A1
Abstract:
Provided are an imaging device, a flicker detection method, and a flicker detection program, whereby flicker from light sources having different frequencies can be differentiated and detected by simple processing and without changing exposure time. A digital camera comprises: an imaging element drive unit 10 that causes an imaging element 5 to capture images by alternately using a first frame rate and a second frame rate; and a flicker detection unit 20. The total of the length of a frame interval T1 for the first frame rate and the length of a frame interval T2 for the second frame rate is a natural-number multiple of 1/100 s. The flicker detection unit 20 detects the presence of 50-Hz flicker and the presence of 60-Hz flicker, on the basis of the degree of correlation within a set of captured image signals obtained during the frame interval T1 and on the basis of the degree of correlation within a set of captured image signals obtained during the frame intervals T1, T2.
Inventors:
ONODERA TATSUO (JP)
Application Number:
PCT/JP2015/082446
Publication Date:
September 09, 2016
Filing Date:
November 18, 2015
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
H04N5/357; H04N5/235; H04N5/351; H04N101/00
Foreign References:
| JP2008109253A | 2008-05-08 | |||
| JP2010098416A | 2010-04-30 | |||
| JP2014110621A | 2014-06-12 |
Attorney, Agent or Firm:
TAKAMATSU Takeshi et al. (JP)
Takamatsu 猛 (JP)
Takamatsu 猛 (JP)
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