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Patent Searching and Data


Title:
IMAGE CAPTURING DEVICE, DISTANCE MEASURING METHOD, DISTANCE MEASURING PROGRAM, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/202984
Kind Code:
A1
Abstract:
Provided are an image capturing device, a distance measuring method, a distance measuring program, and a recording medium with which a distance to a subject can be measured accurately irrespective of the color of the subject. This image capturing device is provided with: an imaging lens having two focal points; an image sensor having a first pixel and a second pixel which respectively perform pupil division and selective reception of light flux incident thereon via a first region among first and second regions of the imaging lens that have different focal distances, and a third pixel and a fourth pixel corresponding to the second region; a first image acquiring unit (41-1) and a second image acquiring unit (41-2) which acquire first and second images having asymmetric blurring from a first pixel group (22A) and a third pixel group (22C) of the image sensor; a third image acquiring unit (43-1) and a fourth image acquiring unit (43-2) which add together pixel values of pixels adjacent to the first and second pixels of the image sensor, and add together pixel values of pixels adjacent to the third and fourth pixels, to acquire third and fourth images having symmetric blurring; and a distance calculating unit (45) which calculates the distance to a subject in the image on the basis of the acquired first image and third image or the acquired second image and fourth image.

Inventors:
ONO SHUJI (JP)
Application Number:
PCT/JP2019/014757
Publication Date:
October 24, 2019
Filing Date:
April 03, 2019
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
International Classes:
G01C3/06; G02B7/34; G03B13/36; G03B19/02; G06T7/571
Domestic Patent References:
WO2014024745A12014-02-13
WO2016038936A12016-03-17
Foreign References:
JP2014048459A2014-03-17
JPS59146009A1984-08-21
JP2006184065A2006-07-13
JP2017040642A2017-02-23
JP2018033126A2018-03-01
JP2018077190A2018-05-17
Attorney, Agent or Firm:
MATSUURA, Kenzo (JP)
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