Title:
IMAGING DEVICE AND IMAGE RESTORATION METHOD
Document Type and Number:
WIPO Patent Application WO/2011/132416
Kind Code:
A1
Abstract:
Disclosed is an imaging device that can restore a degraded image to a high resolution when restoring degraded images on the basis of a point spread function (PSF) image that has been imaged by an optical system. The imaging device (10) has: an optical system (1); a PSF imaging unit (2) that acquires PSF information imaged by the optical system (1) and outputs corrected PSF information by correcting the PSF information; a subject imaging unit (5) that acquires and outputs subject information imaged by the optical system (1); and an image restoration unit (6) that performs restoration computation of the subject information on the basis of the corrected PSF information and the subject information. The PSF imaging unit (2) has: a frequency domain transform unit (3) that transforms the PSF information to frequency domain data, and outputs optical transfer function (OTF) information; and a low-frequency-component gain leveling unit (4) that, in the OTF information, corrects in a manner so as to reduce the ratio of the gain of a direct current component to the gain of a low-frequency component that is not the direct current component.
Inventors:
OYAMA, Ichiro (())
Application Number:
JP2011/002316
Publication Date:
October 27, 2011
Filing Date:
April 20, 2011
Export Citation:
Assignee:
PANASONIC CORPORATION (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
International Classes:
G06T5/10; G06T5/20; H04N5/232
Attorney, Agent or Firm:
NII, Hiromori (6F Tanaka Ito Pia Shin-Osaka Bldg.,3-10, Nishi Nakajima 5-chome, Yodogawa-ku, Osaka-cit, Osaka 11, 〒5320011, JP)
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Claims: