公开(公告)号：US20210099679A1

公开(公告)日：2021-04-01

申请号：US17120213

申请日：2020-12-13

Applicant: OLYMPUS CORPORATION

Inventor： Hiroyuki HOMMA ,  Akikazu YACHI

IPC: H04N7/18 ,  H04N5/225 ,  G06K9/46 ,  H04N5/232

Abstract: An image generation apparatus includes an objective optical system, an optical-path splitter, an image sensor, and an image processor. Both a first imaging area and a second imaging area are images of a field of view of the objective optical system. An outer edge of the first imaging area and an outer edge of the second imaging area are located at an inner side of a predetermined image pickup area, and an image of the outer edge located in the predetermined image pickup area is captured by the image sensor. The image processor has reference data, and in the image processor, a feature point is extracted on the basis of the imaging area. An amount of shift between the predetermined imaging area and the image sensor is calculated from the feature point and the reference data.

公开(公告)号：US20140176769A1

公开(公告)日：2014-06-26

申请号：US14190700

申请日：2014-02-26

Applicant: OLYMPUS CORPORATION

Inventor： Ayako ASAKURA ,  Akikazu YACHI

IPC: H04N5/217

CPC classification number: H04N5/217 ,  G02B3/10 ,  G02B9/16 ,  G02B27/0075 ,  G06T5/003

Abstract: An optical device where an image of an object is formed on an image pickup element and where an image restoration process is performed on the image obtained by the image pickup element, comprising a MTF that satisfies the following conditional expression (1): 0.001

Abstract translation: 一种光学装置，其中物体的图像形成在图像拾取元件上并且对由图像拾取元件获得的图像执行图像恢复处理，其包括满足以下条件表达式（1）的MTF：0.001

公开(公告)号：US20170236317A1

公开(公告)日：2017-08-17

申请号：US15582543

申请日：2017-04-28

Applicant: OLYMPUS CORPORATION

Inventor： Akikazu YACHI

IPC: G06T11/60 ,  A61B1/04 ,  A61B1/06 ,  H04N5/225

CPC classification number: G06T11/60 ,  A61B1/00009 ,  A61B1/04 ,  A61B1/06 ,  A61B1/0646 ,  H04N5/225 ,  H04N5/2256 ,  H04N5/232 ,  H04N5/23229 ,  H04N5/2356 ,  H04N9/04 ,  H04N2005/2255

Abstract: An image processing device includes a processor including hardware, the processor being configured to implement an image acquisition process that acquires captured images from an imaging section that performs a frame sequential imaging process in which one cycle includes first to N-th frames, and a synthesis process, wherein the processor implements the image acquisition process that acquires a plurality of captured images that have been captured in an i-th frame and differ from each other as to an in-focus object plane position, and the processor implements the synthesis process that calculates a second synthesis map based on a first synthesis map calculated with respect to the i-th frame, and the first synthesis map calculated with respect to a k-th frame, and synthesizes the plurality of images that have been captured in the i-th frame based on the second synthesis map.

公开(公告)号：US20170187943A1

公开(公告)日：2017-06-29

申请号：US15457654

申请日：2017-03-13

Applicant: OLYMPUS CORPORATION

Inventor： Hiroshi TSUYUKI ,  Mitsujiro KONNO ,  Akikazu YACHI

IPC: H04N5/235 ,  A61B1/06 ,  A61B1/00 ,  H04N5/225 ,  G02B27/00 ,  G02B23/24 ,  G02B23/04 ,  G02B27/28 ,  G02B5/30 ,  A61B1/04 ,  H04N5/265

CPC classification number: H04N5/2354 ,  A61B1/00009 ,  A61B1/00045 ,  A61B1/00188 ,  A61B1/04 ,  A61B1/06 ,  G02B5/3083 ,  G02B23/04 ,  G02B23/2423 ,  G02B23/2453 ,  G02B23/2461 ,  G02B23/2469 ,  G02B23/2484 ,  G02B27/0075 ,  G02B27/283 ,  G02B27/286 ,  H04N5/2256 ,  H04N5/232 ,  H04N5/2351 ,  H04N5/243 ,  H04N5/265 ,  H04N9/045 ,  H04N2005/2255

Abstract: An endoscope system includes: a generating means generating a compositing mask that serves as compositing ratios of the corresponding pixels between a pair of images acquired by simultaneously imaging two optical images having different focus positions, into which a subject image is divided on the basis of the ratios of contrasts; a correcting means subjecting compositing masks generated for pairs of images acquired in time series, to weighted averaging for respective pixels, thus generating a corrected mask; and an compositing means compositing the two images according to the corrected mask. The correcting means subjects the compositing masks to weighted averaging by performing weighting such that the percentage of the past compositing masks is higher at pixels constituting a static area and an area having contrast lower than a threshold than at pixels constituting a moving-object area or an area having contrast equal to or higher than the threshold.

公开(公告)号：US20180084230A1

公开(公告)日：2018-03-22

申请号：US15824109

申请日：2017-11-28

Applicant: OLYMPUS CORPORATION

Inventor： Akikazu YACHI

IPC: H04N9/04 ,  H04N9/64 ,  H04N9/77 ,  H04N5/235 ,  G06K9/40 ,  G06T5/00

CPC classification number: H04N9/04 ,  G06K9/40 ,  G06T5/002 ,  H04N5/217 ,  H04N5/23232 ,  H04N5/235 ,  H04N9/045 ,  H04N9/64 ,  H04N9/77

Abstract: An image processing device according to the present invention includes: a color space conversion unit that calculates brightness signals and color difference signals from RGB signals of two images of a single subject acquired under different image acquisition conditions; a color difference determination unit that determines whether or not the absolute value of the difference between the color difference signals of the two images calculated by the color space conversion unit is smaller than a predetermined threshold value; and a color averaging unit that, if the color difference determination unit determines that the absolute value of the difference between the color difference signals of the two images is smaller than the threshold value, averages the color difference signals of the two images and calculates average color difference signals.

公开(公告)号：US20160219221A1

公开(公告)日：2016-07-28

申请号：US15092346

申请日：2016-04-06

Applicant: OLYMPUS CORPORATION

Inventor： Akikazu YACHI

IPC: H04N5/232 ,  H04N5/225 ,  H04N9/04

CPC classification number: H04N5/23264 ,  G01C3/06 ,  G02B7/38 ,  G03B13/36 ,  H04N5/2253 ,  H04N5/23212 ,  H04N5/2327 ,  H04N5/243 ,  H04N5/347 ,  H04N9/04 ,  H04N9/045

Abstract: An imaging device includes a first image sensor that is placed to intersect the optical axis of an imaging lens, a second image sensor that is placed to intersect the optical axis of the imaging lens so as to be situated at a given distance from the first image sensor, and receives light that has passed through the first image sensor, and a processor including hardware, wherein the processor is configured to implement a brightness correction process that amplifies the pixel value of the second image captured by the second image sensor using a gain set based on the light transmittance of a light-receiving section of the first image sensor, and an object distance calculation process that performs a depth-from-defocus (DFD) process based on the pixel value of the first image and the pixel value of the second image subjected to the brightness correction process to calculate an object distance.

Abstract translation: 成像装置包括放置成与成像透镜的光轴相交的第一图像传感器，第二图像传感器，被放置成与成像透镜的光轴相交，以便位于与第一图像相距给定的距离处 传感器，并且接收已经通过第一图像传感器的光和包括硬件的处理器，其中处理器被配置为实现亮度校正处理，该亮度校正处理使用增益集来放大由第二图像传感器捕获的第二图像的像素值 基于第一图像传感器的受光部的透光率，以及基于第一图像的像素值和第一图像的像素值执行从散焦深度（DFD）处理的物体距离计算处理 经受亮度校正处理的第二图像以计算物体距离。