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公开(公告)号：US20230255444A1
公开(公告)日：2023-08-17
申请号：US18188126
申请日：2023-03-22
Applicant: OLYMPUS CORPORATION
Inventor： Ryuhi OKUBO , Makoto IKEDA , Satoru ADACHI , Nana AKAHANE
CPC classification number: A61B1/000095 , A61B1/00133 , A61B1/00126 , G06T7/0012 , G06T2207/10
Abstract: An imaging system includes: an optical system configured to form a subject image; a driver configured to drive the optical system; an imaging element configured to capture the subject image and generate image data; and a processor configured to control the imaging element and the driver. The imaging element includes: a first imaging portion configured to capture an image of a first light beam that travels through a first optical path in the optical system; a second imaging portion configured to capture an image of a second light beam that travels through a second optical path shorter than the first optical path; and plural phase difference pixels for phase difference autofocus, the plural phase difference pixels being arranged in at least one of the first imaging portion and the second imaging portion, the plural phase difference pixels being configured to output phase difference signals.
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Patent Agency Ranking
公开(公告)号：US20160360093A1
公开(公告)日：2016-12-08
申请号：US15170543
申请日：2016-06-01
Applicant: Olympus Corporation
Inventor： Makoto IKEDA
CPC classification number: H04N5/23212 , H04N5/3696
Abstract: A phase difference pixel extraction unit reads phase difference pixel data obtained by performing a storing operation in the same storing time for each of the phase difference pixels in each frame of an imaging operation of an image pickup device. A phase difference pixel calculation unit adds the read frame-by-frame phase difference pixel data of the same coordinates in a current frame and a past frame. A determination unit determines whether to perform a focus detection operation based on the added phase difference pixel data. A ranging calculation processing unit applies the added phase difference pixel data when it is determined, and otherwise applies the phase difference pixel data in the current frame.
Abstract translation: 相位差像素提取单元通过对摄像装置的成像操作的每个帧中的每个相位差像素在相同的存储时间中执行存储操作而获得的相位差像素数据。 相位差像素计算单元将当前帧和过去帧中的相同坐标的逐帧相位差像素数据相加。 确定单元基于所添加的相位差像素数据确定是否执行焦点检测操作。 测距计算处理单元在确定时应用相加的相位差像素数据，否则在当前帧中应用相位差像素数据。
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公开(公告)号：US20220038613A1
公开(公告)日：2022-02-03
申请号：US17379330
申请日：2021-07-19
Applicant: OLYMPUS CORPORATION
Inventor： Takashi KOBAYASHI , Satoru ADACHI , Makoto IKEDA
Abstract: An imaging device for performing phase-difference detection auto-focus includes an image sensor including a plurality of normal pixels and a plurality of phase-difference detection pixels arranged in a matrix shape; an exposure control circuit controlling a first exposure time driving the normal pixels for generating image signals, and a second exposure time driving the phase-difference detection pixels for generating phase-difference detection signals; and a lighting device irradiating the imaging object with a first irradiating light at the first exposure time, and irradiating the imaging object with a second irradiating light at the second exposure time. The wave length range of the second irradiating light is narrower than the wave length range of the first irradiating light.
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4.发明申请公开(公告)号：US20180113278A1
公开(公告)日：2018-04-26
申请号：US15791316
申请日：2017-10-23
Applicant: Olympus Corporation
Inventor： Makoto IKEDA
IPC: G02B7/34 , H04N5/225 , H04N5/3745 , H04N5/378
Abstract: An imaging apparatus includes a pixel array, a first adder, a second adder, a first A/D converter circuit, and a second A/D converter circuit. The pixel array includes a plurality of pairs of first pixels and second pixels. Each pair of the first pixel and the second pixel receives a light flux passing through a photography optical system by pupil-dividing the light flux. The first adder adds outputs of the first pixels and outputs of the second pixels. The second adder generates a first output by adding the outputs of the first pixels and generates a second output by adding the outputs of the second pixels. The first A/D converter circuit converts an output of the first adder to a digital signal. The second A/D converter circuit converts an output of the second adder to a digital signal.
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公开(公告)号：US20170257556A1
公开(公告)日：2017-09-07
申请号：US15407115
申请日：2017-01-16
Applicant: OLYMPUS CORPORATION
Inventor： Shingo MIYAZAWA , Makoto IKEDA
CPC classification number: H04N5/23212 , G02B7/09 , G02B7/28 , G02B7/34 , G02B7/36 , G02B7/38 , H04N5/2353
Abstract: A direction judgment unit calculates a first evaluation value based on an image signal of a first focus detection region among focus detection regions to judge a drive direction of a focus lens to be in focus and calculates a second evaluation value based on an image signal of at least one second focus detection region smaller than the first region, the focus detection regions being at least partly the same and being different in size. A control unit determines whether a change of the second evaluation value is a monotonous change when the focus lens is slightly driven a first number of times in a first direction judged on the basis of the first evaluation value and the focus lens is slightly driven a second number of times smaller than the first number of times in a second direction opposite to the first direction, and the control unit performs focus adjustment on the basis of the second evaluation value when the change of the second evaluation value is not a monotonous change.
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公开(公告)号：US20160234423A1
公开(公告)日：2016-08-11
申请号：US15007388
申请日：2016-01-27
Applicant: Olympus Corporation
Inventor： Shingo MIYAZAWA , Makoto IKEDA
CPC classification number: H04N5/23212 , H04N5/232 , H04N5/23261 , H04N5/2351
Abstract: A focus adjustment device for carrying out focus adjustment by moving a focus lens, comprises a point light source determination section which determines a point-like light source subject based on the image signals, an orientation stability determination section which determines stability of orientation by detecting orientation of the focus adjustment device, a photometry section which outputs photometric values corresponding to subject brightness based on the image signals, and a focus adjustment section which carries out a focus adjustment operation using the image signals, based on a determination result of the point light source determination section, wherein the point light source determination section, in a state where a point-like light source subject is currently determined, when a determination result of the orientation stability determination section indicates unstable and a photometric value output from the photometry section does not indicate low brightness, determines that the subject is not a point-like light source.
Abstract translation: 用于通过移动聚焦透镜进行聚焦调节的聚焦调节装置包括：基于图像信号确定点状光源被摄体的点光源确定部分，通过检测方向来确定取向的稳定性的方向稳定性确定部分 焦距调节装置，基于图像信号输出与被摄体亮度相对应的测光值的测光部，以及基于点光源的判定结果进行使用图像信号的聚焦调整动作的焦点调整部 确定部分，其中当定向稳定性确定部分的确定结果指示不稳定并且从测光部分输出的光度值不指示时，点光源确定部分处于当前确定点状光源对象的状态 低亮度，确定 该主题不是点状光源。
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