公开(公告)号：US20180242829A1

公开(公告)日：2018-08-30

申请号：US15964461

申请日：2018-04-27

Applicant: OLYMPUS CORPORATION

Inventor： Koichiro YOSHINO ,  Kanako SAITO

IPC: A61B1/045 ,  A61B1/00 ,  G02B7/09

CPC classification number: A61B1/045 ,  A61B1/00009 ,  A61B1/0002 ,  A61B1/00039 ,  A61B1/00045 ,  A61B1/0005 ,  A61B1/00105 ,  A61B1/00126 ,  A61B1/00188 ,  A61B1/042 ,  A61B1/055 ,  A61B5/1076 ,  G02B7/09 ,  G02B7/34 ,  G02B23/2453 ,  G02B23/2484 ,  G02B23/26 ,  G06T2207/10068 ,  H04N5/2251 ,  H04N5/232 ,  H04N5/23212 ,  H04N5/232123 ,  H04N5/23245

Abstract: An image capturing device includes a processor. The processor is configured to implement: a switching control process for switching between a manual focus (MF) mode and an auto focus (AF) mode of performing auto focus control; a process for controlling driving of a focus lens; scene status determination process for performing a detection process for detecting a scene change during the MF mode and an estimation process for estimating distance change information indicating distance change between the image capturing section and an object. The processor is configured to implement: controlling the driving of the focus lens based on lens drive information; switching control for switching from the MF mode to the AF mode when the scene change is detected; and controlling the driving of the focus lens to bring the object into focus based on the distance change information.

公开(公告)号：US20140039257A1

公开(公告)日：2014-02-06

申请号：US13953519

申请日：2013-07-29

Applicant: OLYMPUS CORPORATION

Inventor： Keiji HIGUCHI ,  Koichiro YOSHINO

IPC: A61B1/00 ,  A61B1/06 ,  A61B1/04

CPC classification number: A61B1/00096 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/00188 ,  A61B1/04 ,  A61B1/06 ,  G02B7/09 ,  G02B7/34 ,  G02B23/243 ,  H04N5/2256 ,  H04N2005/2255

Abstract: An endoscope apparatus includes an imaging section that includes a phase difference detection element for implementing phase detection autofocus, and acquires a captured image, a phase difference calculation section that calculates a phase difference based on a signal output from the phase difference detection element, a lens position selection section that selects a lens position that is either a near point-side lens position or a far point-side lens position based on the phase difference, the near point-side lens position and the far point-side lens position being discrete lens positions set in advance, and a driver section that changes a lens position of the imaging section to the lens position selected by the lens position selection section.

Abstract translation: 一种内窥镜装置，包括：成像部，其具有用于实现相位检测自动聚焦的相位差检测元件，并获取拍摄图像;相位差计算部，其基于从所述相位差检测元件输出的信号计算相位差;透镜 位置选择部，其基于相位差选择作为近点侧透镜位置或远点侧透镜位置的透镜位置，近点侧透镜位置和远点侧透镜位置为离散透镜 预先设定的位置以及将成像部的镜头位置变更为由镜片位置选择部选择的镜片位置的驱动部。

公开(公告)号：US20180316871A1

公开(公告)日：2018-11-01

申请号：US16030119

申请日：2018-07-09

Applicant: OLYMPUS CORPORATION

Inventor： Koichiro YOSHINO

IPC: H04N5/232

CPC classification number: H04N5/232127 ,  A61B1/00009 ,  A61B1/00188 ,  A61B1/042 ,  G02B7/36 ,  H04N5/232123 ,  H04N5/232125 ,  H04N5/23287 ,  H04N2005/2255

Abstract: A focus control device includes a processor including hardware. The processor sets a plurality of regions, each including a plurality of pixels, to an image acquired by an imaging section, obtains a direction determination result for each region in some or all of the plurality of regions set, by determining whether a target focusing position that is a target of an in-focus object plane position is on a NEAR side or a FAR side relative to a reference position, determines an in-focus direction by performing weighted comparison between NEAR area information and FAR area information, based on the direction determination result and weight information, and controls the in-focus object plane position based on the in-focus direction.

公开(公告)号：US20140300799A1

公开(公告)日：2014-10-09

申请号：US14220297

申请日：2014-03-20

Applicant: Olympus Corporation

Inventor： Koichiro YOSHINO

IPC: H04N5/232

CPC classification number: H04N5/23212 ,  H04N5/23296 ,  H04N2005/2255

Abstract: An imaging device includes an objective lens that includes a movable lens that is configured so that an in-focus object plane position is changed along with a change in angle of view, an image sensor that acquire an image, a focus control section that implements an autofocus (AF) operation by controlling a position of the movable lens, a reference lens position setting section that sets a reference lens position based on a moving range of the movable lens during a wobbling operation, the wobbling operation being performed every given cycle during the AF operation, and a magnification correction section that performs a magnification correction process that reduces a change in the angle of view of the image due to a change in the position of the movable lens during the wobbling operation relative to the reference lens position.

Abstract translation: 一种成像装置包括：物镜，其包括可移动透镜，该可移动透镜被配置为随着视角的变化而调焦对焦物平面位置，获取图像的图像传感器，实现图像的聚焦控制部 通过控制可移动透镜的位置进行自动对焦（AF）操作;基准透镜位置设定部，其在摆动动作期间基于移动透镜的移动范围设定基准透镜位置，在所述移动透镜的每个给定周期期间进行摆动动作 AF操作，以及放大校正部，其执行放大校正处理，该放大校正处理减少由于在摆动操作期间相对于参考透镜位置的可移动透镜的位置的变化而导致的图像的视角变化。

公开(公告)号：US20140210974A1

公开(公告)日：2014-07-31

申请号：US14229168

申请日：2014-03-28

Applicant: OLYMPUS CORPORATION

Inventor： Koichiro YOSHINO

IPC: H04N5/232

CPC classification number: H04N5/23212 ,  A61B1/00188 ,  A61B1/05 ,  G02B7/34 ,  G02B23/2438 ,  H04N5/3696 ,  H04N2005/2255

Abstract: The imaging device includes an imaging optical system that includes a movable lens that simultaneously adjusts the angle of view and the in-focus object distance, an image sensor, a plurality of phase sensors, an acquisition section (A/D conversion section) that acquires phase information from the plurality of phase sensors, a lens control section that controls the position of the movable lens, and a moving amount calculation section that calculates the moving amount of the movable lens necessary for implementing an in-focus state of an image formed on the image sensor due to light beams that have passed through the imaging optical system, based on a phase difference that is based on the phase information, the lens control section controlling the position of the movable lens based on the moving amount calculated by the moving amount calculation section.

Abstract translation: 该成像装置包括成像光学系统，该成像光学系统包括同时调节视角和对焦物体距离的可移动透镜，图像传感器，多个相位传感器，获取部分（A / D转换部分） 来自多个相位传感器的相位信息，控制可移动透镜的位置的透镜控制部分和运动量计算部分，该移动量计算部分计算实现形成在其上的图像的聚焦状态所需的可移动透镜的移动量 基于基于相位信息的相位差，由于通过成像光学系统的光束而导致的图像传感器，根据由移动量计算的移动量控制可移动透镜的位置的透镜控制部分 计算部分。

公开(公告)号：US20140036050A1

公开(公告)日：2014-02-06

申请号：US14049046

申请日：2013-10-08

Applicant: OLYMPUS CORPORATION

Inventor： Koichiro YOSHINO

IPC: A61B1/00 ,  H04N5/232

CPC classification number: A61B1/00009 ,  A61B1/00188 ,  G03B37/005 ,  G06T3/0012 ,  G06T3/0018 ,  H04N5/23229 ,  H04N5/23296 ,  H04N5/3572 ,  H04N2005/2255

Abstract: The imaging device includes an image sensor that includes a plurality of pixels that generate an image signal from an object image that is formed by an imaging optical system, a scaling section that performs a scaling process on an original image that includes image signals that correspond to the plurality of pixels, and an output section that outputs an image after the scaling process as a scaled image, the scaling section performing the scaling process using a different scaling factor corresponding to the position of a pixel of interest within the scaled image, and the image sensor including pixels in a number larger than the number of pixels of the scaled image as the plurality of pixels.

Abstract translation: 成像装置包括图像传感器，其包括从由成像光学系统形成的对象图像生成图像信号的多个像素;缩放部，其对包括对应于图像信号的图像信号的原始图像执行缩放处理 所述多个像素，以及输出部，其在所述缩放处理之后输出作为缩放图像的图像，所述缩放部使用与所述缩放图像内的感兴趣像素的位置对应的不同缩放因子来执行缩放处理， 图像传感器包括比作为多个像素的缩放图像的像素数量多的像素。

公开(公告)号：US20180007256A1

公开(公告)日：2018-01-04

申请号：US15705329

申请日：2017-09-15

Applicant: OLYMPUS CORPORATION

Inventor： Koichiro YOSHINO

IPC: H04N5/232 ,  H04N5/235 ,  A61B1/06 ,  H04N5/225 ,  A61B1/04 ,  A61B1/00

CPC classification number: H04N5/23212 ,  A61B1/00009 ,  A61B1/00188 ,  A61B1/04 ,  A61B1/06 ,  G02B7/28 ,  G02B7/36 ,  G02B7/38 ,  G02B23/2461 ,  G03B13/36 ,  H04N5/2256 ,  H04N5/2351 ,  H04N2005/2255

Abstract: A focus control device includes a processor including hardware, the processor being configured to implement: an area setting process that sets a plurality of areas, each including a plurality of pixels, on a captured image acquired by an imaging section, an evaluation value calculation process that calculates an AF (Autofocus) evaluation value for each of the plurality of set areas, a bright spot influence rate calculation process that calculates a bright spot influence rate for each of the plurality of set areas, based on whether or not the area includes a high luminance portion determined to have a size equal to or larger than a given size, and focus control based on the AF evaluation value and the bright spot influence rate.

公开(公告)号：US20170265726A1

公开(公告)日：2017-09-21

申请号：US15613092

申请日：2017-06-02

Applicant: OLYMPUS CORPORATION

Inventor： Toshiaki MIKAMI ,  Manabu ICHIKAWA ,  Koichiro YOSHINO

IPC: A61B1/00 ,  H04N5/225 ,  H04N5/232 ,  A61B1/045 ,  A61B1/313

CPC classification number: A61B1/00188 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/045 ,  A61B1/3132 ,  G02B7/34 ,  G02B7/38 ,  G02B23/2469 ,  G02B23/26 ,  H04N5/2256 ,  H04N5/23212 ,  H04N5/23245 ,  H04N2005/2255

Abstract: A focus control device includes a processor including hardware, the processor being configured to implement: an area setting process that sets a plurality of areas to a captured image that has been captured by an imaging section, each of the plurality of areas including a plurality of pixels; a direction determination process that determines whether a target in-focus position lies in a NEAR direction or a FAR direction with respect to a reference position with respect to some or all of the plurality of areas set to the captured image to calculate a direction determination result with respect to each of the plurality of areas, the target in-focus position being a target of an in-focus object plane position; and a focus control process that preferentially brings an area among the plurality of areas that is situated away from the imaging section into focus based on the direction determination result.

公开(公告)号：US20170071452A1

公开(公告)日：2017-03-16

申请号：US15342492

申请日：2016-11-03

Applicant: OLYMPUS CORPORATION

Inventor： Keiji HIGUCHI ,  Koichiro YOSHINO

IPC: A61B1/00 ,  A61B1/06 ,  G02B7/34 ,  G02B23/24 ,  G02B7/09 ,  A61B1/04 ,  H04N5/225

CPC classification number: A61B1/00096 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/00188 ,  A61B1/04 ,  A61B1/06 ,  G02B7/09 ,  G02B7/34 ,  G02B23/243 ,  H04N5/2256 ,  H04N2005/2255

Abstract: An endoscope apparatus including an imaging section that includes a phase difference detection element for implementing phase detection autofocus, and acquires a captured image; a phase difference calculation section that calculates a phase difference based on a signal output from the phase difference detection element; a lens position selection section that selects a lens position that is either a near point-side lens position or a far point-side lens position based on the phase difference, the near point-side lens position and the far point-side lens position being discrete lens positions set in advance; a driver section that changes a lens position of the imaging section to the lens position selected by the lens position selection section; and a control section that controls an intensity of illumination light that is applied to an object. The lens position selection section determines whether or not the intensity is smaller than a given threshold value when the phase difference calculation section cannot detect the phase difference, selects the near point-side lens position when the lens position selection section has determined that the intensity is smaller than the threshold value, and selects the far point-side lens position when the lens position selection section has determined that the intensity is larger than the threshold value.

Abstract translation: 一种内窥镜装置，包括：成像部，其具有用于实现相位检测自动聚焦的相位差检测元件，并获取拍摄图像; 相位差计算部，其基于从所述相位差检测元件输出的信号计算相位差; 透镜位置选择部，其基于相位差，近点侧透镜位置和远点侧透镜位置，选择作为近点侧透镜位置或远点侧透镜位置的透镜位置， 离散镜头位置提前设定; 驱动部，其将所述摄像部的镜头位置变更为由所述镜片位置选择部选择的镜片位置; 以及控制部，其控制施加到物体的照明光的强度。 当相位差计算部分不能检测到相位差时，透镜位置选择部分确定强度是否小于给定的阈值，当透镜位置选择部分确定强度是 小于阈值，并且当透镜位置选择部分已经确定强度大于阈值时选择远点侧透镜位置。

公开(公告)号：US20160234427A1

公开(公告)日：2016-08-11

申请号：US15099377

申请日：2016-04-14

Applicant: OLYMPUS CORPORATION

Inventor： Koichiro YOSHINO

IPC: H04N5/232 ,  A61B1/045 ,  A61B1/00 ,  G02B7/09 ,  H04N5/14

Abstract: An endoscope apparatus includes a processor comprising hardware, a processor performs a focus control that controls a position of a focus lens to an in-focus position based on an in-focus evaluation value, the focus lens being included in an optical system that forms an image of a captured image that is acquired by an imaging section, and the in-focus evaluation value being calculated from a first area within the captured image, and a change-in-scene detection process that detects whether or not a change in scene has occurred from a second area that includes an area that differs from the first area, wherein the processor is set to a standby state when the position of the focus lens has been controlled to the in-focus position, and resumes the focus control process when a change in scene has been detected when the focus control section is set to the standby state.

Abstract translation: 一种内窥镜装置，包括具有硬件的处理器，处理器基于对焦评价值，进行将聚焦透镜的位置控制到对焦位置的聚焦控制，所述聚焦透镜包括在形成 由成像部分获取​​的拍摄图像的图像，以及从拍摄图像内的第一区域计算的对焦评估值，以及场景检测处理，其检测场景变化是否具有 从包括与第一区域不同的区域的第二区域发生，其中当聚焦透镜的位置已经被控制到对焦位置时，处理器被设置为待机状态，并且当处于对焦状态时，恢复焦点控制处理 当焦点控制部分设置为待机状态时已经检测到场景变化。