Patents by Inventor Ryuhi Okubo
Ryuhi Okubo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20230255444Abstract: 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.Type: ApplicationFiled: March 22, 2023Publication date: August 17, 2023Applicant: OLYMPUS CORPORATIONInventors: Ryuhi OKUBO, Makoto IKEDA, Satoru ADACHI, Nana AKAHANE
-
Publication number: 20220345608Abstract: 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.Type: ApplicationFiled: July 7, 2022Publication date: October 27, 2022Applicant: OLYMPUS CORPORATIONInventors: Makoto Ikeda, Ryuhi Okubo, Satoru Adachi, Nana Akahane
-
Patent number: 10970537Abstract: An image processing apparatus generates a left-eye viewpoint image and a right-eye viewpoint image, detects one or more pairs that are each a pair of a partial image of the left-eye viewpoint image and a partial image of the right-eye viewpoint image that are similar to each other, performs, for each of the one or more pairs, image adjustment processing for adjusting the three-dimensionality of one of or both of the partial images of the left-eye and right-eye viewpoint images, displays the left-eye viewpoint image or the left-eye viewpoint image after the image adjustment processing in a manner such that this image is capable of being observed with a left eye, and displays the right-eye viewpoint image or the right-eye viewpoint image after the image adjustment processing in a manner such that this image is capable of being observed with a right eye.Type: GrantFiled: August 5, 2019Date of Patent: April 6, 2021Assignee: OLYMPUS CORPORATIONInventors: Tetsuya Toyoda, Kazumi Ito, Masayuki Nakatsuka, Tatsuya Kino, Ryuhi Okubo, Shigeru Kato, Tetsuya Shirota, Kazuhiko Osa, Osamu Nonaka
-
Publication number: 20200050850Abstract: An image processing apparatus generates a left-eye viewpoint image and a right-eye viewpoint image, detects one or more pairs that are each a pair of a partial image of the left-eye viewpoint image and a partial image of the right-eye viewpoint image that are similar to each other, performs, for each of the one or more pairs, image adjustment processing for adjusting the three-dimensionality of one of or both of the partial images of the left-eye and right-eye viewpoint images, displays the left-eye viewpoint image or the left-eye viewpoint image after the image adjustment processing in a manner such that this image is capable of being observed with a left eye, and displays the right-eye viewpoint image or the right-eye viewpoint image after the image adjustment processing in a manner such that this image is capable of being observed with a right eye.Type: ApplicationFiled: August 5, 2019Publication date: February 13, 2020Applicant: OLYMPUS CORPORATIONInventors: Tetsuya TOYODA, Kazumi ITO, Masayuki NAKATSUKA, Tatsuya KINO, Ryuhi OKUBO, Shigeru KATO, Tetsuya SHIROTA, Kazuhiko OSA, Osamu NONAKA
-
Patent number: 10148865Abstract: A focus detection apparatus, comprising, focus detection pixels that receive a pair of light fluxes resulting from pupil division of light flux, a memory that stores correction values in accordance with width of the imaging light flux in the pupil-division direction relating to a two-image interval value, and a controller having a focus detection section, a light flux width calculation section, and a defocus amount calculation section, wherein the light flux width calculation section calculates the width of the imaging light flux in the pupil-division direction, and the defocus amount calculation section calculates defocus amount of the photographing optical system based on the two-image interval value, wherein the focus detection section detects a first two-image interval value and corrects the first two-image interval value based on the correction values and the width of the imaging light flux in the pupil-division direction to obtain a second two-image interval value.Type: GrantFiled: June 3, 2017Date of Patent: December 4, 2018Assignee: Olympus CorporationInventors: Ryuhi Okubo, Kazumi Ito
-
Patent number: 9866746Abstract: A photographing apparatus of the present invention, having a lens barrel including a photographing optical system for guiding photographing light flux and a camera body capable of being attached to and detached from the lens barrel, comprises an image sensor having pairs of focus detection pixels, a first memory for storing information relating to incident angle range of imaging light flux, a second memory, arranged in the body barrel, for storing information on light receiving sensitivity characteristic of the focus detection pixels, and a calculation controller for calculating information for focus adjustment control based on information that has been read out from the first memory and the second memory, wherein the information relating to incident angle range includes angular information of upper and lower ends of imaging light flux corresponding to image height.Type: GrantFiled: June 29, 2017Date of Patent: January 9, 2018Assignee: Olympus CorporationInventors: Kazumi Ito, Ryuhi Okubo
-
Publication number: 20170374270Abstract: A focus detection apparatus, comprising, focus detection pixels that receive a pair of light fluxes resulting from pupil division of light flux, a memory that stores correction values in accordance with width of the imaging light flux in the pupil-division direction relating to a two-image interval value, and a controller having a focus detection section, a light flux width calculation section, and a defocus amount calculation section, wherein the light flux width calculation section calculates the width of the imaging light flux in the pupil-division direction, and the defocus amount calculation section calculates defocus amount of the photographing optical system based on the two-image interval value, wherein the focus detection section detects a first two-image interval value and corrects the first two-image interval value based on the correction values and the width of the imaging light flux in the pupil-division direction to obtain a second two-image interval value.Type: ApplicationFiled: June 3, 2017Publication date: December 28, 2017Inventors: Ryuhi OKUBO, Kazumi ITO
-
Publication number: 20170302845Abstract: A photographing apparatus of the present invention, having a lens barrel including a photographing optical system for guiding photographing light flux and a camera body capable of being attached to and detached from the lens barrel, comprises an image sensor having pairs of focus detection pixels, a first memory for storing information relating to incident angle range of imaging light flux, a second memory, arranged in the body barrel, for storing information on light receiving sensitivity characteristic of the focus detection pixels, and a calculation controller for calculating information for focus adjustment control based on information that has been read out from the first memory and the second memory, wherein the information relating to incident angle range includes angular information of upper and lower ends of imaging light flux corresponding to image height.Type: ApplicationFiled: June 29, 2017Publication date: October 19, 2017Inventors: Kazumi ITO, Ryuhi OKUBO
-
Patent number: 9729777Abstract: A photographing apparatus of the present invention, having a lens section including a photographing optical system for guiding photographing light flux and a body section capable of being attached to and detached from the lens section, comprises an image sensor having imaging pixels and pairs of focus detection pixels, a first memory for storing information relating to incident angle range of imaging light flux, a second memory, arranged in the body section, for storing information on light receiving sensitivity characteristic of the focus detection pixels, and a control amount calculate section for calculating information for focus adjustment control based on information that has been read out from the first memory and the second memory, wherein the information relating to incident angle range includes information relating to shape of a plurality of arcs based on openings of a plurality of lens groups contained in the photographing optical system.Type: GrantFiled: December 16, 2015Date of Patent: August 8, 2017Assignee: Olympus CorporationInventors: Kazumi Ito, Ryuhi Okubo
-
Publication number: 20160182811Abstract: A photographing apparatus of the present invention, having a lens section including a photographing optical system for guiding photographing light flux and a body section capable of being attached to and detached from the lens section, comprises an image sensor having imaging pixels and pairs of focus detection pixels, a first memory for storing information relating to incident angle range of imaging light flux, a second memory, arranged in the body section, for storing information on light receiving sensitivity characteristic of the focus detection pixels, and a control amount calculate section for calculating information for focus adjustment control based on information that has been read out from the first memory and the second memory, wherein the information relating to incident angle range includes information relating to shape of a plurality of arcs based on openings of a plurality of lens groups contained in the photographing optical system.Type: ApplicationFiled: December 16, 2015Publication date: June 23, 2016Inventors: Kazumi ITO, Ryuhi OKUBO
-
Patent number: 8810713Abstract: An image pickup apparatus includes: an image pickup device that includes a pixel used for focus detection, a plurality of the pixels being arranged in a matrix; a correction memory that stores correction information used for correcting a difference in amounts of received light that depend on pixel positions of the pixels used for focus detection; a correcting section that reads the correction information to correct a pixel value of the pixel used for focus detection; and a focus detecting section that detects a focal point by using the pixel value corrected by the correcting section. Focus accuracy is increased by correcting the pixel value for an AF pixel depending on the pixel position.Type: GrantFiled: July 10, 2012Date of Patent: August 19, 2014Assignees: Olympus Imaging Corp., Olympus CorporationInventors: Keigo Matsuo, Hisashi Goto, Yoshikazu Ichikawa, Ryuhi Okubo, Hiroshi Takase, Toshio Takahashi, Daichi Murakami
-
Publication number: 20130016274Abstract: An image pickup apparatus includes: an image pickup device that includes a pixel used for focus detection, a plurality of the pixels being arranged in a matrix; a correction memory that stores correction information used for correcting a difference in amounts of received light that depend on pixel positions of the pixels used for focus detection; a correcting section that reads the correction information to correct a pixel value of the pixel used for focus detection; and a focus detecting section that detects a focal point by using the pixel value corrected by the correcting section. Focus accuracy is increased by correcting the pixel value for an AF pixel depending on the pixel position.Type: ApplicationFiled: July 10, 2012Publication date: January 17, 2013Applicants: OLYMPUS CORPORATION, OLYMPUS IMAGING CORP.Inventors: Keigo Matsuo, Hisashi Goto, Yoshikazu Ichikawa, Ryuhi Okubo, Hiroshi Takase, Toshio Takahashi, Daichi Murakami