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：US09274328B2

公开(公告)日：2016-03-01

申请号：US14104967

申请日：2013-12-12

Applicant: OLYMPUS CORPORATION

Inventor： Shigeto Kaminaga

IPC: H04N7/18 ,  G02B21/36 ,  G06T5/00 ,  G06T5/40 ,  G06T5/50

CPC classification number: G02B21/367 ,  G06T5/009 ,  G06T5/40 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10056 ,  G06T2207/10152 ,  G06T2207/20208 ,  G06T2207/20221 ,  G06T2207/30141

Abstract: An image processing apparatus includes: a normalization unit that generates a plurality of normalized images by correcting, based on different imaging conditions, brightness of a plurality of images at different brightness obtained by imaging a same subject with the different imaging conditions; and an image combining unit that generates a combined image by combining the plurality of normalized images. When the normalized image corresponding to a reference image that is a brightest image among the plurality of images is defined as a reference normalized image, the image combining unit combines the reference normalized image and a non-reference normalized image that is the normalized image other than the reference normalized image to bring gradation of pixel of the combined image close to gradation of pixel of the reference normalized image if the gradation of pixel of the combined image is smaller than the gradation of pixel of the reference normalized image.

Abstract translation: 一种图像处理装置，包括：归一化单元，其通过基于不同的成像条件，通过用不同的成像条件对相同被摄体进行成像而获得的不同亮度的多个图像的亮度进行校正来生成多个标准化图像; 以及图像组合单元，其通过组合所述多个标准化图像来生成组合图像。 当将与多个图像中的最亮图像的参照图像对应的标准化图像定义为基准标准化图像时，图像合成部将基准标准化图像和作为标准化图像的非参照标准化图像 如果组合图像的像素的灰度小于参考标准化图像的像素的灰度，则参考标准化图像使组合图像的像素的灰度接近参考标准化图像的像素的灰度。