公开(公告)号：US12064092B2

公开(公告)日：2024-08-20

申请号：US17859439

申请日：2022-07-07

Applicant: OLYMPUS CORPORATION

Inventor： Makoto Ikeda ,  Ryuhi Okubo ,  Satoru Adachi ,  Nana Akahane

IPC: H04N23/56 ,  A61B1/00 ,  A61B1/045 ,  A61B1/06 ,  G02B23/24 ,  H04N23/72 ,  H04N25/11 ,  G02B5/20

CPC classification number: A61B1/0655 ,  A61B1/00009 ,  A61B1/045 ,  A61B1/0638 ,  G02B23/2469 ,  H04N23/56 ,  H04N23/72 ,  H04N25/11 ,  G02B5/201

Abstract: A control device includes: a processor configured to obtain a first picture signal and a second picture signal, calculate first ranging information based on the first picture signal, calculate second ranging information based on the second picture signal, estimate a first subject distance corresponding to the first ranging information, estimate ranging information corresponding to a second focal position, perform arithmetic processing to determine degree of reliability of the first ranging information, and output a result of the arithmetic processing.

公开(公告)号：US20220345608A1

公开(公告)日：2022-10-27

申请号：US17859439

申请日：2022-07-07

Applicant: OLYMPUS CORPORATION

Inventor： Makoto Ikeda ,  Ryuhi Okubo ,  Satoru Adachi ,  Nana Akahane

IPC: H04N5/235 ,  H04N5/225 ,  H04N9/04 ,  G02B23/24 ,  A61B1/00 ,  A61B1/045 ,  A61B1/06

Abstract: A control device includes: a processor configured to obtain a first picture signal and a second picture signal, calculate first ranging information based on the first picture signal, calculate second ranging information based on the second picture signal, estimate a first subject distance corresponding to the first ranging information, estimate ranging information corresponding to a second focal position, perform arithmetic processing to determine degree of reliability of the first ranging information, and output a result of the arithmetic processing.

公开(公告)号：US10051174B2

公开(公告)日：2018-08-14

申请号：US15407115

申请日：2017-01-16

Applicant: OLYMPUS CORPORATION

Inventor： Shingo Miyazawa ,  Makoto Ikeda

IPC: H04N5/232 ,  G02B7/38 ,  G02B7/28 ,  H04N5/235 ,  G02B7/34 ,  G02B7/09 ,  G02B7/36

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.

公开(公告)号：US09979876B2

公开(公告)日：2018-05-22

申请号：US15170543

申请日：2016-06-01

Applicant: Olympus Corporation

Inventor： Makoto Ikeda

IPC: H04N5/232 ,  H04N5/369

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.

公开(公告)号：US12070184B2

公开(公告)日：2024-08-27

申请号：US18188126

申请日：2023-03-22

Applicant: OLYMPUS CORPORATION

Inventor： Ryuhi Okubo ,  Makoto Ikeda ,  Satoru Adachi ,  Nana Akahane

IPC: A61B1/00 ,  G06T7/00

CPC classification number: A61B1/000095 ,  A61B1/00126 ,  A61B1/00133 ,  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.

公开(公告)号：US10551591B2

公开(公告)日：2020-02-04

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.

公开(公告)号：US09654684B2

公开(公告)日：2017-05-16

申请号：US15007388

申请日：2016-01-27

Applicant: Olympus Corporation

Inventor： Shingo Miyazawa ,  Makoto Ikeda

IPC: H04N5/232 ,  H04N5/235

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.