Title:
IMAGING DEVICE AND PHASE DIFFERENCE DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/059971
Kind Code:
A1
Abstract:
An imaging device is provided with a imaging unit (10) for imaging first and second subject images having parallax in relation to the same subject, a densification process unit (20) for performing a densification process on a first image in which the first subject image is captured and a second image in which the second subject image is captured, and a phase difference detection unit (30) for detecting a phase difference between the densified first and second images. The imaging unit (10) has an optical lowpass filter (11) that has a cutoff frequency less than or equal to 1/(2P), where P is a pitch of pixels for imaging the first and second subject images. The densification process unit (20) performs, as a densification process, an upsampling process on the first and second images and a two-dimensional lowpass filter process on the upsampled first and second images.
Inventors:
IMADE SHINICHI
Application Number:
PCT/JP2014/070304
Publication Date:
April 30, 2015
Filing Date:
August 01, 2014
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
G01C3/06; G02B7/34; G06T1/00; H04N5/232; H04N9/07
Foreign References:
| JP2001124984A | 2001-05-11 | |||
| JP2009033582A | 2009-02-12 | |||
| JP2013044806A | 2013-03-04 | |||
| JP2001305415A | 2001-10-31 |
Attorney, Agent or Firm:
TAKEKOSHI, Noboru et al. (JP)
Noboru Takekoshi (JP)
Noboru Takekoshi (JP)
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