公开(公告)号：US10540754B2

公开(公告)日：2020-01-21

申请号：US15801683

申请日：2017-11-02

Applicant: OLYMPUS CORPORATION

Inventor： Hisanori Tetsuka ,  Hiroshi Sakai ,  Masayuki Nakatsuka ,  Shigeto Kaminaga

IPC: G06K9/40 ,  G06T5/00 ,  G06K9/46 ,  G06T5/50 ,  H04N5/243

Abstract: An image-processing device is provided with: a pattern-matching portion that performs pattern matching between a first image and a second image acquired before the first image and that outputs a motion vector between the images and an evaluation value that indicates the accuracy of the motion vector; a recursive noise-reduction portion that outputs a noise reduction image, which is the first image to which noise reduction has been applied, and that performs noise reduction in which an image based on the first image and an image based on the noise reduction image formed in the past are mixed in accordance with a predetermined recursion amount; and a controlling portion that controls a recursion amount in the recursive noise-reduction portion on the basis of the motion vector and the evaluation value output by the pattern-matching portion and a gain that is applied to the first image to adjust a brightness thereof.

公开(公告)号：US10778948B2

公开(公告)日：2020-09-15

申请号：US16601821

申请日：2019-10-15

Applicant: OLYMPUS CORPORATION

Inventor： Hiroshi Sakai ,  Shinichi Imade ,  Hideaki Takahashi

IPC: H04N9/64 ,  A61B1/06 ,  H04N9/04

Abstract: In an imaging apparatus, a pupil division optical system includes a first pupil transmitting light of a first wavelength band and a second pupil transmitting light of a second wavelength band different from the first wavelength band. An imaging device is configured to capture an image of light transmitted through the pupil division optical system and a first color filter having a first transmittance characteristic and light transmitted through the pupil division optical system and a second color filter having a second transmittance characteristic partially overlapping the first transmittance characteristic, and output the captured image. A processor is configured to generate a monochrome correction image or a correction image by correcting a value that is based on components overlapping between the first transmittance characteristic and the second transmittance characteristic for the captured image.