IMAGE PROCESSING DEVICE, IMAGING DEVICE, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM

Title:

IMAGE PROCESSING DEVICE, IMAGING DEVICE, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM

Document Type and Number:

WIPO Patent Application WO/2015/151590

Kind Code:

A1

Abstract:

Provided are an image processing device, an imaging device, an image processing method, and an image processing program which make it possible to effectively perform a phase retrieval and to suppress the occurrence of artifacts caused by frequency recovery processing, when restoring a degraded image caused by the point spread function of an optical system. The present invention is equipped with: a phase retrieval processing unit (44) for subjecting image data obtained from an imaging element by imaging an imaging subject using an optical system to phase retrieval processing using a phase retrieval filter based on the point spread function of the optical system; a gradation correction processing unit (45) for subjecting the image data which has undergone phase retrieval processing to a non-linear gradation correction; and a phase retrieval processing unit (46) for subjecting the gradation-corrected image data to frequency recovery processing using a frequency recovery filter based on the point spread function of the optical system.

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Inventors:

NARUSE YOUSUKE (JP)
SUGIMOTO MASAHIKO (JP)
HAYASHI KENKICHI (JP)

Application Number:

PCT/JP2015/053654

Publication Date:

October 08, 2015

Filing Date:

February 10, 2015

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Assignee:

FUJIFILM CORP (JP)

International Classes:

H04N5/232; G06T5/00; H04N1/407; H04N1/409

Foreign References:

JP2011123589A	2011-06-23
JP2012156715A	2012-08-16
JP2010049610A	2010-03-04

Attorney, Agent or Firm:

ODAHARA Shuichi et al. (JP)
Shuichi Odawara (JP)

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