Title:
IMAGING DEVICE, IMAGE-PROCESSING DEVICE, IMAGE-PROCESSING METHOD, PROGRAM, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2016/167189
Kind Code:
A1
Abstract:
The present invention provides an imaging device, an image-processing device, an image-processing method, a program, and a recording medium, with which a restoration process based on an optical transfer function of an optical system is performed on a wide-angle photographed image that was photographed using an optical system having good balance with respect to peripheral light quantity and resolution performance. In an embodiment of the present invention, a restoration process unit (41) performs a restoration process, based on an optical transfer function of an optical system, on a subject image. The entire angle of view of the optical system is greater than 90 degrees. A light quantity evaluation area of the optical system is an area of the optical system where the distance from the center of an image plane is at least 80% of half the length of the diagonal of the imaging plane of an imaging element in the image plane of the optical system, and when a first evaluation wavelength is used, the ratio of the light quantity in the light quantity evaluation area relative to the light quantity in the area of the optical system corresponding to the center of the image plane is at least 25%. When a second evaluation wavelength is used, the MTF value of the optical system acquired for 1/2 the Nyquist wavelength of the imaging element is at least 15%.
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Inventors:
TANAKA TAKUYA (JP)
NARUSE YOUSUKE (JP)
NARUSE YOUSUKE (JP)
Application Number:
PCT/JP2016/061512
Publication Date:
October 20, 2016
Filing Date:
April 08, 2016
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
H04N5/232; G06T5/00; H04N101/00
Domestic Patent References:
| WO2015015935A1 | 2015-02-05 |
Foreign References:
| JP2009213129A | 2009-09-17 | |||
| JP2012005056A | 2012-01-05 | |||
| JP2014021312A | 2014-02-03 |
Attorney, Agent or Firm:
MATSUURA, Kenzo (JP)
Kenzo Matsuura (JP)
Kenzo Matsuura (JP)
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